This document reviews different methods used to improve the productivity of solar stills for fresh water production. It discusses conventional single basin solar stills and their limitations in productivity. It then summarizes various enhancement techniques studied in literature, including adding fins, integrating with solar ponds, using reflectors, implementing wick evaporation surfaces and weirs. The key finding is that these modifications, by increasing heat transfer or evaporation area, can significantly improve the daily water yield of solar distillation systems compared to conventional passive solar stills.
IRJET- Solar Water Distillation System by using Inclined Double BasinIRJET Journal
1) The document describes a study comparing a double inclined solar water distillation system (DISWD) to a single inclined solar water distillation system (ISWD). Both systems were tested with a bare plate and with a black-fleece covering.
2) Testing found that the DISWD produced more fresh water per hour and had higher efficiency than the ISWD in both the bare plate and black-fleece configurations. With black-fleece, the DISWD achieved efficiencies up to 39.07% and fresh water production of 222.18 ml/hr, outperforming the ISWD.
3) An economic analysis calculated the simple payback periods as 4.15 years for the IS
Experimental investigation on coupling evacuated heat pipe collector on singl...IAEME Publication
1) The document presents the results of an experimental investigation on coupling an evacuated heat pipe collector to a single basin single slope solar still to improve productivity.
2) The results show that coupling an evacuated heat pipe collector increased the solar still's productivity by 32% compared to the solar still alone, due to increased heat transfer and evaporation rate.
3) Testing also examined the effects of water depth, sun direction, and solar radiation on productivity. Productivity decreased with increased water depth and increased directly with solar radiation levels. The optimal sun direction was found to be 15 degrees west of geographic south for winter conditions.
An experimental investigation into the performance of a gi basin passive sola...eSAT Journals
Abstract Potable Water or Pure Drinking Water is essential to mankind and it is difficult to obtain fresh water at many places . The conventional methods available to purify Water are costly. Solar Energy is freely available and can be used as a very cheap option to purify Water through Solar Distillation, by using Solar Stills . The conventional Single Basin Passive Solar Still or Plain Basin Galvanized Iron (GI) Solar Still can be used to purify Water but the main problem is that the per square metre distillate output is less. Many methods have been used to increase the output of GI Basin Solar Still. Horizontal or Vertical Mesh made of GI can be used in the Basin of Solar Still to increase the distillate output. Outdoor Experiments were conducted at Nagpur, Maharashtra ,India (21.15⁰N, 79.09⁰E) for GI Basin Plain (Without Mesh) Solar Still, With Horizontal Mesh and With Vertical Mesh in the months of May-June and September-October. It was found that both the Mesh increase the distillate output considerably, in which the Horizontal Mesh gives an appreciable increase in the Average Distillate Output (about 400ml per day) and an increase of about 6% in the Average Distillation Efficiency whereas the Vertical Mesh gives a significant increase in the Average Distillate Output (about 1000ml per day) with an increase of about 13% in the Average Distillation Efficiency. The Vertical Mesh is very cheap and the payback period for the Vertical Mesh is hardly 3 months. Thus , the GI Basin Solar Still with Vertical Mesh gives a higher output and can be helpful in obtaining pure drinking water for communities , both cheaply and effectively. Key Words : GI Basin Solar Still, Distillate Output, Average Efficiency, Horizontal Mesh, Vertical Mesh
Solar Water Purification Project For Mechanical Engineeringyash saradva
This document describes the design and principles of operation of a solar still for purifying water. It discusses various types of solar stills including pit, box, concentrating collector, multiple tray, tilted wick, and their components and functioning. It explains that solar stills use the sun's energy to evaporate dirty water through a process of heating, evaporation, condensation and collection of purified water. They are useful for providing clean drinking water in remote areas without access to treated water supplies. The document outlines the scope of the project to study the efficiency of a solar still and analyze converting a solar cooker design to a solar still.
Researchers and Reviews on Active Solar Distillation Systemijsrd.com
Solar distillation is one of the most promising technologies for supplying potable water. Simply due to its lower productivity, it has limited application. Only, when solar distillation is coupled with any mechanical source, then it increased productivity. Such, the device is called active solar still. The present review paper shows researches done on a solar distillation system for increment in distillate output.
This document presents a solar water purifier designed by five students to provide clean drinking water in rural areas of India. It uses solar energy to purify water through a multi-stage distillation process. The purifier removes over 99% of dissolved salts, dust, bacteria and other contaminants to produce safe water. It has a simple design that is inexpensive to produce at a total cost of Rs. 2,400 and easy for users to operate and maintain on a daily basis. The students estimate that the purifier could address clean water needs for 70% of India's rural population.
The International Journal of Engineering and Science (The IJES)theijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
This document presents a case study on rooftop rainwater harvesting at the Shivajirao S. Jondhale College of Engineering and Technology campus in Asangaon, India. It calculates the annual water demand for the campus based on student and staff population. It also calculates the potential water collection from the rooftops of two buildings based on their catchment area, average rainfall height, and runoff coefficient. The results show that the amount of water that could be collected from rooftop rainwater harvesting would meet and exceed the total annual campus water demand. Rooftop rainwater harvesting is presented as a low-cost and effective solution to meet the college's water needs while conserving water resources.
IRJET- Solar Water Distillation System by using Inclined Double BasinIRJET Journal
1) The document describes a study comparing a double inclined solar water distillation system (DISWD) to a single inclined solar water distillation system (ISWD). Both systems were tested with a bare plate and with a black-fleece covering.
2) Testing found that the DISWD produced more fresh water per hour and had higher efficiency than the ISWD in both the bare plate and black-fleece configurations. With black-fleece, the DISWD achieved efficiencies up to 39.07% and fresh water production of 222.18 ml/hr, outperforming the ISWD.
3) An economic analysis calculated the simple payback periods as 4.15 years for the IS
Experimental investigation on coupling evacuated heat pipe collector on singl...IAEME Publication
1) The document presents the results of an experimental investigation on coupling an evacuated heat pipe collector to a single basin single slope solar still to improve productivity.
2) The results show that coupling an evacuated heat pipe collector increased the solar still's productivity by 32% compared to the solar still alone, due to increased heat transfer and evaporation rate.
3) Testing also examined the effects of water depth, sun direction, and solar radiation on productivity. Productivity decreased with increased water depth and increased directly with solar radiation levels. The optimal sun direction was found to be 15 degrees west of geographic south for winter conditions.
An experimental investigation into the performance of a gi basin passive sola...eSAT Journals
Abstract Potable Water or Pure Drinking Water is essential to mankind and it is difficult to obtain fresh water at many places . The conventional methods available to purify Water are costly. Solar Energy is freely available and can be used as a very cheap option to purify Water through Solar Distillation, by using Solar Stills . The conventional Single Basin Passive Solar Still or Plain Basin Galvanized Iron (GI) Solar Still can be used to purify Water but the main problem is that the per square metre distillate output is less. Many methods have been used to increase the output of GI Basin Solar Still. Horizontal or Vertical Mesh made of GI can be used in the Basin of Solar Still to increase the distillate output. Outdoor Experiments were conducted at Nagpur, Maharashtra ,India (21.15⁰N, 79.09⁰E) for GI Basin Plain (Without Mesh) Solar Still, With Horizontal Mesh and With Vertical Mesh in the months of May-June and September-October. It was found that both the Mesh increase the distillate output considerably, in which the Horizontal Mesh gives an appreciable increase in the Average Distillate Output (about 400ml per day) and an increase of about 6% in the Average Distillation Efficiency whereas the Vertical Mesh gives a significant increase in the Average Distillate Output (about 1000ml per day) with an increase of about 13% in the Average Distillation Efficiency. The Vertical Mesh is very cheap and the payback period for the Vertical Mesh is hardly 3 months. Thus , the GI Basin Solar Still with Vertical Mesh gives a higher output and can be helpful in obtaining pure drinking water for communities , both cheaply and effectively. Key Words : GI Basin Solar Still, Distillate Output, Average Efficiency, Horizontal Mesh, Vertical Mesh
Solar Water Purification Project For Mechanical Engineeringyash saradva
This document describes the design and principles of operation of a solar still for purifying water. It discusses various types of solar stills including pit, box, concentrating collector, multiple tray, tilted wick, and their components and functioning. It explains that solar stills use the sun's energy to evaporate dirty water through a process of heating, evaporation, condensation and collection of purified water. They are useful for providing clean drinking water in remote areas without access to treated water supplies. The document outlines the scope of the project to study the efficiency of a solar still and analyze converting a solar cooker design to a solar still.
Researchers and Reviews on Active Solar Distillation Systemijsrd.com
Solar distillation is one of the most promising technologies for supplying potable water. Simply due to its lower productivity, it has limited application. Only, when solar distillation is coupled with any mechanical source, then it increased productivity. Such, the device is called active solar still. The present review paper shows researches done on a solar distillation system for increment in distillate output.
This document presents a solar water purifier designed by five students to provide clean drinking water in rural areas of India. It uses solar energy to purify water through a multi-stage distillation process. The purifier removes over 99% of dissolved salts, dust, bacteria and other contaminants to produce safe water. It has a simple design that is inexpensive to produce at a total cost of Rs. 2,400 and easy for users to operate and maintain on a daily basis. The students estimate that the purifier could address clean water needs for 70% of India's rural population.
The International Journal of Engineering and Science (The IJES)theijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
This document presents a case study on rooftop rainwater harvesting at the Shivajirao S. Jondhale College of Engineering and Technology campus in Asangaon, India. It calculates the annual water demand for the campus based on student and staff population. It also calculates the potential water collection from the rooftops of two buildings based on their catchment area, average rainfall height, and runoff coefficient. The results show that the amount of water that could be collected from rooftop rainwater harvesting would meet and exceed the total annual campus water demand. Rooftop rainwater harvesting is presented as a low-cost and effective solution to meet the college's water needs while conserving water resources.
Experimental Investigation for Drinking Water Production through Double Slope...IJSTA
This document describes an experimental investigation of a double slope solar still for producing drinking water. The researchers constructed a double slope solar still out of fiber reinforced plastic with an inner basin size of 2.0 m x 1.0 m x 0.10 m and two 4 mm thick glass covers inclined at 15 degrees on both sides. Temperature readings were taken every 60 minutes over a 24 hour period to evaluate the still's performance. The results showed that the double slope design improved the solar still's ability to produce clean drinking water using solar energy without requiring other energy inputs.
The document reviews various solar distillation technologies for desalination. It discusses different types of solar concentrators and collectors that can be used to heat saline water and produce fresh water through distillation. Several studies that have tested different solar distillation designs and configurations are summarized. These include designs using parabolic concentrators, double pass solar air heaters, humidification-dehumidification processes, and systems combining multiple technologies. The document indicates that solar distillation is a promising technology for desalination using renewable energy but further improvements are needed to increase efficiency and competitiveness compared to conventional thermal desalination methods.
The document discusses various low impact development programs in multiple cities that help manage stormwater and protect water resources through the use of green infrastructure. It provides examples of green roofs, permeable pavement, rainwater harvesting, bioretention swales, and other natural drainage systems that have significantly reduced stormwater runoff volumes and peak flows in cities like Chicago, Portland, Seattle, Toronto, and Vancouver. It also discusses the Anacostia Waterfront Corporation in Washington D.C. that has established comprehensive environmental standards for development projects, including innovative stormwater retention requirements.
This document discusses strategies for water efficiency in green building and construction. It explains that water conservation is important since water is a precious resource. Key strategies mentioned include using native and drought-tolerant plants to reduce irrigation needs, installing efficient drip irrigation systems and moisture sensors, using high-efficiency plumbing fixtures, and implementing gray and black water reuse systems that treat wastewater on-site. The document provides examples and photos to illustrate different water efficiency techniques.
This document provides biographical information about Reeti Bhattacharyya, a class 10 student, including her name, class, roll number, and school details. It then lists the various science and social science topics she has studied that relate to water, including chemistry, biology, physics, geography, political development, and economic development. The document proceeds to provide more details on several of these topics, including hardness of water, recycling water, water as a source of energy, water as a resource, and sustainability. It also discusses various water-related movements in India such as the Narmada Bachao Andolan.
Water Use and Conservation - New HampshireKaila694m
New Hampshire faces challenges managing its water resources to meet growing demand while ensuring sustainability. Water use is increasing due to population growth and discretionary outdoor uses like lawn watering. Climate change and aging infrastructure exacerbate these pressures. Conservation efforts aim to reduce water usage through education, efficient fixtures, leak detection, and rate structures, but face obstacles from initial costs and public resistance. Comprehensive management includes registering large water users to track demands on resources.
Gray vs. Green: The Role of Watershed-scale Green Infrastructure Systems for ...Mcrpc Staff
This document discusses the role of green infrastructure systems for managing wastewater at a watershed scale. It begins by outlining the historical patterns of water movement through uplands and lowlands, and how contemporary development has reversed these patterns. It then describes various green infrastructure strategies that can replicate natural hydrology, including green roofs, porous pavements, bio-retention systems, rainwater harvesting, wastewater recycling, and native landscaping. The document provides examples of these strategies and concludes by discussing a new paradigm in wastewater treatment using lagoons and floating mats of bacteria to polish wastewater in a low-cost, low-energy manner.
The document discusses Peoria, Illinois' stream buffer ordinance. It defines a stream buffer as a protective, forested strip of land along both sides of a stream. Benefits of stream buffers include erosion control, flood management, water quality protection, and aesthetic and recreational value. Peoria developed its ordinance due to problems like unstable slopes and floodplain encroachment. The ordinance requires a 30-50 foot vegetated buffer on each side of streams and includes the 100-year floodplain. It allows for traditional compliance with buffer zones or alternative compliance through other conservation methods. The ordinance has led to reforestation of buffer areas and enforcement through fines for violations.
The document discusses issues around produced water from energy development and opportunities for water reuse. It notes that produced water volumes can be significant, especially from unconventional sources like coal bed methane. While fracking uses a small percentage of total water, agricultural use is much larger. Produced water reuse projects could help address water shortages, but regulatory hurdles around water rights and discharge standards must be overcome. Treatment technologies are improving and customized approaches may enable wider reuse of produced water in the future.
Environmental and social impacts of water projects_Pradeep Kumar (NWA)_2011India Water Portal
Water resource projects are needed to meet the growing demands of India's increasing population for food, industry, domestic use, and power. However, they can negatively impact the environment and communities. Key impacts include the displacement of people and loss of livelihoods during construction. Forests and wildlife habitats are also affected. During operation, positive impacts are irrigation for agriculture and increased aquatic life, but negative impacts include waterlogging and changes to natural ecosystems. Project developers aim to manage these impacts through measures like compensatory forestation, relocation of affected communities and wildlife, and management of water usage.
The Narmada Bachao Andolan was a social movement opposed to large dams being built on the Narmada River in India, including the Sardar Sarovar Dam in Gujarat. Led by activists Medha Patkar and Baba Amte, NBA organized protests like hunger strikes and a march to raise awareness about the environmental and social impacts of displacement. While the Supreme Court initially stopped dam construction, it later ruled in favor of the project subject to rehabilitation conditions. However, the movement successfully increased scrutiny of resettlement plans and environmental compliance for large dam projects in India.
The Narmada Bachao Andolan was a social movement opposed to large dams being built on the Narmada River in India, including the Sardar Sarovar Dam in Gujarat. Led by activists Medha Patkar and Baba Amte, NBA organized protests like hunger strikes and a march to raise awareness about the environmental and social impacts of displacement. While the Supreme Court initially stopped dam construction, it later ruled in favor of the project subject to rehabilitation conditions. However, the movement successfully increased scrutiny of resettlement plans and environmental compliance for large dam projects in India.
The Narmada Bachao Andolan was a social movement opposed to large dams being built across the Narmada River in India, including the Sardar Sarovar Dam in Gujarat. Led by activists Medha Patkar and Baba Amte, NBA organized protests like hunger strikes and a march to raise awareness about the environmental and social impacts of displacement. While the Supreme Court initially stopped dam construction, it later ruled in favor of the project subject to rehabilitation conditions. However, the movement successfully increased scrutiny of displacement safeguards for large infrastructure projects impacting local communities in India.
This a presentatiopn to assist LEED Green Associate candidates prepare for the Water Management section of the LEED Green Associate Accredidation Exam.
This document discusses downstream flow regimes for hydropower projects. It notes that planning for reservoir filling and power plant operation must consider ecological, social, and economic factors. There is often a lack of scientific data and regulation to guide discussions on downstream flows. The document presents two case studies where downstream flow levels were negotiated: the Salto Caxias project, where ecological and community concerns over reduced flows to Iguazu Falls led to an agreed minimum flow of 155 cm/s; and a smaller project where community concerns over reduced scenic waterfall flows resulted in an agreed minimum flow of 6 cm/s, versus the regulatory minimum of 2.2 cm/s. The document concludes that downstream flow discussions must be case-specific,
The document discusses the planning of reservoirs, outlining several key steps:
1) Decision makers must determine the needs and purposes of the reservoir while considering constraints. This includes social and financial factors.
2) All relevant existing information is assembled, such as previous studies, geological and hydrological data, population and demand forecasts.
3) Potential dam and reservoir sites are identified and evaluated based on topographical suitability, available storage, and other factors. Environmental and social impacts are also assessed.
The document summarizes a proposal to "smartscape" the Plaza de Balboa area of Balboa Park in San Diego with drought-tolerant landscaping and an innovative water reclamation system. It aims to capture water from the cooling towers and HVAC systems of nearby buildings like the Fleet Science Center to irrigate the landscape, rather than using potable water. The project would reclaim over 100,000 gallons of water monthly through rainwater capture and building system condensate in a pilot phase. If successful, it would help beautify the park while conserving water resources through smart landscaping and irrigation upgrades.
Thermal Performance Evaluation of Wax Type Solar Distillation SystemIOSRJMCE
The alternative energy sources are new option in front of world to overcome energy crisis and pollution related issues. The solar energy, wind energy and bio mass are three major sources and out of these three energy sources solar energy is the easiest source to extract useful energy because the wind energy can be useful particularly in coastal area where there is high wind velocity and energy extraction bio mass needs either chemical conversion or thermo chemical conversion process. The objective of present work is to developed solar distillation system consists of wax as phase change material to improve the thermal performance.
Ground water distillation by basin type solar still for different basin water...IJERA Editor
Adequate quality and reliability of drinking water supply is a fundamental need. Without potable water or
drinking water (less than about 500 ppm of salt) human life is not possible. Only 1% of Earth's water is in a
fresh, liquid state, and nearly all of this is polluted by both diseases and toxic chemicals. For this reason,
purification of water supplies is extremely important.
Keeping these things in mind, we have devised a model which will convert the saline ground water into pure
and potable water using the renewable source of energy (i.e. solar energy). Solar energy is an abundant, never
lasting, and available on site and pollution free energy.Solar Energy is freely available and can be used as a very
cheap option to convert saline ground Water through Solar Distillation, by using Solar Stills. The conventional
single basin and single slop Passive Solar Still can be used to purify water but the main problem is that the per
square meter distillate output is less. So it is need to modify the design of solar still for high output of solar
distillate
Solar still is easy to construct, can be done by local people from locally available materials, simple in
operation by unskilled Personnel, no hard maintenance requirements and almost no operation cost. Simplest
basin type models of solar still in earlier days, researchers have progressed a lot to increase its efficiency.
Suitable modification of solar still can produce high output using minimum areas of land and even in cloudy
days. Experimental study is done at Rewa M.P. on two different basin water depth solar stills. Low water depth
solar water still is produced more distillate than high water depth still by the experiment.
Experimental Investigation for Drinking Water Production through Double Slope...IJSTA
This document describes an experimental investigation of a double slope solar still for producing drinking water. The researchers constructed a double slope solar still out of fiber reinforced plastic with an inner basin size of 2.0 m x 1.0 m x 0.10 m and two 4 mm thick glass covers inclined at 15 degrees on both sides. Temperature readings were taken every 60 minutes over a 24 hour period to evaluate the still's performance. The results showed that the double slope design improved the solar still's ability to produce clean drinking water using solar energy without requiring other energy inputs.
The document reviews various solar distillation technologies for desalination. It discusses different types of solar concentrators and collectors that can be used to heat saline water and produce fresh water through distillation. Several studies that have tested different solar distillation designs and configurations are summarized. These include designs using parabolic concentrators, double pass solar air heaters, humidification-dehumidification processes, and systems combining multiple technologies. The document indicates that solar distillation is a promising technology for desalination using renewable energy but further improvements are needed to increase efficiency and competitiveness compared to conventional thermal desalination methods.
The document discusses various low impact development programs in multiple cities that help manage stormwater and protect water resources through the use of green infrastructure. It provides examples of green roofs, permeable pavement, rainwater harvesting, bioretention swales, and other natural drainage systems that have significantly reduced stormwater runoff volumes and peak flows in cities like Chicago, Portland, Seattle, Toronto, and Vancouver. It also discusses the Anacostia Waterfront Corporation in Washington D.C. that has established comprehensive environmental standards for development projects, including innovative stormwater retention requirements.
This document discusses strategies for water efficiency in green building and construction. It explains that water conservation is important since water is a precious resource. Key strategies mentioned include using native and drought-tolerant plants to reduce irrigation needs, installing efficient drip irrigation systems and moisture sensors, using high-efficiency plumbing fixtures, and implementing gray and black water reuse systems that treat wastewater on-site. The document provides examples and photos to illustrate different water efficiency techniques.
This document provides biographical information about Reeti Bhattacharyya, a class 10 student, including her name, class, roll number, and school details. It then lists the various science and social science topics she has studied that relate to water, including chemistry, biology, physics, geography, political development, and economic development. The document proceeds to provide more details on several of these topics, including hardness of water, recycling water, water as a source of energy, water as a resource, and sustainability. It also discusses various water-related movements in India such as the Narmada Bachao Andolan.
Water Use and Conservation - New HampshireKaila694m
New Hampshire faces challenges managing its water resources to meet growing demand while ensuring sustainability. Water use is increasing due to population growth and discretionary outdoor uses like lawn watering. Climate change and aging infrastructure exacerbate these pressures. Conservation efforts aim to reduce water usage through education, efficient fixtures, leak detection, and rate structures, but face obstacles from initial costs and public resistance. Comprehensive management includes registering large water users to track demands on resources.
Gray vs. Green: The Role of Watershed-scale Green Infrastructure Systems for ...Mcrpc Staff
This document discusses the role of green infrastructure systems for managing wastewater at a watershed scale. It begins by outlining the historical patterns of water movement through uplands and lowlands, and how contemporary development has reversed these patterns. It then describes various green infrastructure strategies that can replicate natural hydrology, including green roofs, porous pavements, bio-retention systems, rainwater harvesting, wastewater recycling, and native landscaping. The document provides examples of these strategies and concludes by discussing a new paradigm in wastewater treatment using lagoons and floating mats of bacteria to polish wastewater in a low-cost, low-energy manner.
The document discusses Peoria, Illinois' stream buffer ordinance. It defines a stream buffer as a protective, forested strip of land along both sides of a stream. Benefits of stream buffers include erosion control, flood management, water quality protection, and aesthetic and recreational value. Peoria developed its ordinance due to problems like unstable slopes and floodplain encroachment. The ordinance requires a 30-50 foot vegetated buffer on each side of streams and includes the 100-year floodplain. It allows for traditional compliance with buffer zones or alternative compliance through other conservation methods. The ordinance has led to reforestation of buffer areas and enforcement through fines for violations.
The document discusses issues around produced water from energy development and opportunities for water reuse. It notes that produced water volumes can be significant, especially from unconventional sources like coal bed methane. While fracking uses a small percentage of total water, agricultural use is much larger. Produced water reuse projects could help address water shortages, but regulatory hurdles around water rights and discharge standards must be overcome. Treatment technologies are improving and customized approaches may enable wider reuse of produced water in the future.
Environmental and social impacts of water projects_Pradeep Kumar (NWA)_2011India Water Portal
Water resource projects are needed to meet the growing demands of India's increasing population for food, industry, domestic use, and power. However, they can negatively impact the environment and communities. Key impacts include the displacement of people and loss of livelihoods during construction. Forests and wildlife habitats are also affected. During operation, positive impacts are irrigation for agriculture and increased aquatic life, but negative impacts include waterlogging and changes to natural ecosystems. Project developers aim to manage these impacts through measures like compensatory forestation, relocation of affected communities and wildlife, and management of water usage.
The Narmada Bachao Andolan was a social movement opposed to large dams being built on the Narmada River in India, including the Sardar Sarovar Dam in Gujarat. Led by activists Medha Patkar and Baba Amte, NBA organized protests like hunger strikes and a march to raise awareness about the environmental and social impacts of displacement. While the Supreme Court initially stopped dam construction, it later ruled in favor of the project subject to rehabilitation conditions. However, the movement successfully increased scrutiny of resettlement plans and environmental compliance for large dam projects in India.
The Narmada Bachao Andolan was a social movement opposed to large dams being built on the Narmada River in India, including the Sardar Sarovar Dam in Gujarat. Led by activists Medha Patkar and Baba Amte, NBA organized protests like hunger strikes and a march to raise awareness about the environmental and social impacts of displacement. While the Supreme Court initially stopped dam construction, it later ruled in favor of the project subject to rehabilitation conditions. However, the movement successfully increased scrutiny of resettlement plans and environmental compliance for large dam projects in India.
The Narmada Bachao Andolan was a social movement opposed to large dams being built across the Narmada River in India, including the Sardar Sarovar Dam in Gujarat. Led by activists Medha Patkar and Baba Amte, NBA organized protests like hunger strikes and a march to raise awareness about the environmental and social impacts of displacement. While the Supreme Court initially stopped dam construction, it later ruled in favor of the project subject to rehabilitation conditions. However, the movement successfully increased scrutiny of displacement safeguards for large infrastructure projects impacting local communities in India.
This a presentatiopn to assist LEED Green Associate candidates prepare for the Water Management section of the LEED Green Associate Accredidation Exam.
This document discusses downstream flow regimes for hydropower projects. It notes that planning for reservoir filling and power plant operation must consider ecological, social, and economic factors. There is often a lack of scientific data and regulation to guide discussions on downstream flows. The document presents two case studies where downstream flow levels were negotiated: the Salto Caxias project, where ecological and community concerns over reduced flows to Iguazu Falls led to an agreed minimum flow of 155 cm/s; and a smaller project where community concerns over reduced scenic waterfall flows resulted in an agreed minimum flow of 6 cm/s, versus the regulatory minimum of 2.2 cm/s. The document concludes that downstream flow discussions must be case-specific,
The document discusses the planning of reservoirs, outlining several key steps:
1) Decision makers must determine the needs and purposes of the reservoir while considering constraints. This includes social and financial factors.
2) All relevant existing information is assembled, such as previous studies, geological and hydrological data, population and demand forecasts.
3) Potential dam and reservoir sites are identified and evaluated based on topographical suitability, available storage, and other factors. Environmental and social impacts are also assessed.
The document summarizes a proposal to "smartscape" the Plaza de Balboa area of Balboa Park in San Diego with drought-tolerant landscaping and an innovative water reclamation system. It aims to capture water from the cooling towers and HVAC systems of nearby buildings like the Fleet Science Center to irrigate the landscape, rather than using potable water. The project would reclaim over 100,000 gallons of water monthly through rainwater capture and building system condensate in a pilot phase. If successful, it would help beautify the park while conserving water resources through smart landscaping and irrigation upgrades.
Thermal Performance Evaluation of Wax Type Solar Distillation SystemIOSRJMCE
The alternative energy sources are new option in front of world to overcome energy crisis and pollution related issues. The solar energy, wind energy and bio mass are three major sources and out of these three energy sources solar energy is the easiest source to extract useful energy because the wind energy can be useful particularly in coastal area where there is high wind velocity and energy extraction bio mass needs either chemical conversion or thermo chemical conversion process. The objective of present work is to developed solar distillation system consists of wax as phase change material to improve the thermal performance.
Ground water distillation by basin type solar still for different basin water...IJERA Editor
Adequate quality and reliability of drinking water supply is a fundamental need. Without potable water or
drinking water (less than about 500 ppm of salt) human life is not possible. Only 1% of Earth's water is in a
fresh, liquid state, and nearly all of this is polluted by both diseases and toxic chemicals. For this reason,
purification of water supplies is extremely important.
Keeping these things in mind, we have devised a model which will convert the saline ground water into pure
and potable water using the renewable source of energy (i.e. solar energy). Solar energy is an abundant, never
lasting, and available on site and pollution free energy.Solar Energy is freely available and can be used as a very
cheap option to convert saline ground Water through Solar Distillation, by using Solar Stills. The conventional
single basin and single slop Passive Solar Still can be used to purify water but the main problem is that the per
square meter distillate output is less. So it is need to modify the design of solar still for high output of solar
distillate
Solar still is easy to construct, can be done by local people from locally available materials, simple in
operation by unskilled Personnel, no hard maintenance requirements and almost no operation cost. Simplest
basin type models of solar still in earlier days, researchers have progressed a lot to increase its efficiency.
Suitable modification of solar still can produce high output using minimum areas of land and even in cloudy
days. Experimental study is done at Rewa M.P. on two different basin water depth solar stills. Low water depth
solar water still is produced more distillate than high water depth still by the experiment.
PERFORMANCE EVALUATION OF A SOLAR STILL COUPLED TO AN EVACUATED TUBE COLLECTO...IAEME Publication
Solar distillation is a promising method for the supply of freshwater to rural communities. Worldwide passive solar still is used for solar distillation plants due to its simplicity in construction and operation, low cost and however the yield is low. Various active methods have been developed to overcome this issue. These developments create additional costs for the system. The main objective of this project is to effectively utilize the solar water heater for solar still productivity enhancement, which works as a hybrid system.
This document describes the fabrication and analysis of a portable desalination system using solar energy. It discusses the global shortage of drinking water and how desalination is a potential solution. A double slope solar still was fabricated along with a water heater controlled by a thermostat. Vacuum pressure and temperature were measured inside the collecting tank. The system operates using passive solar energy to evaporate and condense water from a saline solution, leaving purified water. It was found that solar distillation effectively removes contaminants and microbes from feed water.
IRJET- Experiment Investigation on Distillation of Brackish Water by a Parabo...IRJET Journal
This document describes an experiment investigating the distillation of brackish water using a parabolic solar concentrator. The experimental setup included a parabolic concentrator made of fiberglass that concentrated sunlight onto an absorber tube containing saline water. As water evaporated, the steam was condensed to produce distilled water. Testing was conducted over three days, and the average hourly distilled water production was 6.144687 kg/h. The document concludes that this was a preliminary study and improvements could be made to further optimize the system for larger-scale desalination using solar energy.
Water Purification by Solar Energy Under Natural Circulation ModeIRJET Journal
1. The document describes a project to produce potable water from solar energy using a system with a parabolic solar trough and custom designed distillation device. Solar radiation is focused by the trough to heat impure water, which is then evaporated and condensed into pure water in the distillation device.
2. The objectives of the system are to efficiently produce at least 2 gallons of drinking water per day from virtually any water source using only solar energy without additional energy inputs.
3. A parabolic trough concentrates solar radiation to heat water, which is then evaporated and distilled in a custom device to produce clean drinking water.
Investigation of the Effect of Cover Thickness on the Yield of a Single Basin...inventionjournals
1. The study investigated the effect of glass cover thickness on the yield of five single basin solar stills with different glass cover configurations under Makurdi climate.
2. Still 1, with a 4mm thick single glass pane, produced the highest mean daily water output of 306 cm3 and had the largest average temperature difference of 4.2°C between the water and inner glass surface.
3. Increasing the glass cover thickness decreased the temperature difference across the cover and lowered the daily still output. Still 5, with the thickest triple pane glass cover, had a negative temperature difference and nearly zero daily output.
The document is a project report on solar distillation presented by students of the chemical engineering department. It includes an introduction to solar distillation, the history of the technique, different types of solar stills, the theory and construction of solar stills, their use in water purification, advantages and disadvantages compared to other methods. The report concludes that solar distillation provides a sustainable means of desalination and fresh water production using renewable solar energy with minimal environmental impact.
An Experimental Study on a New Design of Double Slope Solar Still with Extern...IOSR Journals
The world demand for potable water is increasing steadily with growing population. Desalination using solar energy is suitable for potable water production from brackish and seawater. In this paper, we presents design, fabrication and testing of double slope solar still with external flatted and internal parabolic reflectors and also optimization of external flat reflector tilt angle for Egyptian climatic conditions. The external flat reflector tilted at (30°, 45°, 60° and 75°) on the horizontal plane. The depth of water inside basin still is 1cm. Experimental results were compared with conventional double slope solar still. Optimum tilt angle is found to be 60° with a maximum daily productivity of 9.89 lit/m2.
IRJET- Desalination of Salt Water using Solar EnergyIRJET Journal
This document summarizes a research paper on desalination of salt water using solar energy. It describes a small-scale desalination system that uses solar energy as its main power source. The system consists of a glass cover, lens, and aluminum plate designed to evaporate sea water through a vapor compression process. When tested using natural sea water, the system was able to produce fresh water with over 90% rejection of salt on average. The research found that suitable modifications to solar stills could produce high outputs of fresh water even on cloudy days using minimal land area. The goal of the study was to assess the feasibility and cost-effectiveness of using solar energy for desalination plants.
IRJET- Thermal Performance Evaluation of Evacuated Solar Water Heater wit...IRJET Journal
This document evaluates the thermal performance of an evacuated solar water heater with and without twisted tapes inserted inside the glass tubes. Key findings include:
- Temperature gain was higher at low and medium flow rates compared to high flow rates for both setups.
- The setup with twisted tapes inserted showed slightly higher temperature gains, around 1°C on average, compared to the setup without tapes, due to increased turbulence creating higher heat transfer.
- While improvements were small due to the small experimental setup, the results suggest twisted tapes can enhance thermal performance by inducing swirling flow and turbulence inside the glass tubes of an evacuated solar water heater.
Performance Optimization of an Integrated Solar Desalination SystemIRJET Journal
This document describes a study on optimizing the performance of an integrated solar desalination system using multi-stage heat recovery processes. The system uses solar energy to power a desalination process to convert salt water into fresh water. Researchers built an experimental system and analyzed its performance on sunny and cloudy days. They found the system produced almost twice as much fresh water on sunny days compared to cloudy days due to higher solar intensity. The document reviews previous studies on related solar desalination systems and proposes further analyzing the experimental system using theoretical models to validate the performance parameters.
This document summarizes different methods used to increase the productivity of solar stills for distilling water. It describes the basic components and functioning of common solar still designs like box, cone, and pit stills. It then reviews several active methods researchers have used to augment solar still productivity, such as integrating the still with solar collectors, mini solar ponds, fins, sponges or baffles. One study found productivity increased up to 120% when combining a single slope still with a solar water heater. Another found productivity increased 370% using two water heaters in a double slope still. The highest productivity of 100% was obtained with a fin-type still integrated with pebbles and sponges.
This project aims to design a portable solar-powered water distillation system that can purify water from any source using renewable energy. Distillation is an effective process to purify water that requires an energy input for evaporation. Solar energy can power this process through solar distillation, which uses solar radiation to evaporate water inside a still. The goal is to efficiently produce clean drinking water using only solar energy. The system will be inexpensive, portable, and not require fuel or electricity to operate.
DESIGN OF SOLAR PARABOLIC TROUGH WATER HEATERIRJET Journal
This document summarizes a research paper on the design of a solar parabolic trough water heater. It begins with an abstract that describes concentrating solar collectors that absorb solar energy and convert it into heat for hot water. It then reviews 25 previous journal papers on parabolic trough water heaters. The paper proposes a new design for a parabolic trough water heater that is more effective and lower cost. It describes the components of the new design, which includes an aluminum trough, mirrors, and a copper tube receiver.
DESIGN AND FABRICATION OF ADVANCED SOLAR WATER HEATERIRJET Journal
This document describes the design and fabrication of an advanced solar water heater. The proposed system uses a double exposure system with mirrors to reflect sunlight onto both sides of an aluminum flat plate solar collector, increasing the heating rate of water in the tubes. An evacuated flat plate collector is used for its high efficiency. A tracking system orients the collector to follow the sun's motion and further reflect sunlight, improving overall performance. The design aims to heat water faster and more efficiently than conventional solar water heaters through these enhanced collection and exposure methods. Testing showed the maximum water temperature reached 72°C, demonstrating effectiveness of the double exposure system and vacuum insulation for solar water heating.
PRODUCTION OF POTABLE WATER FROM SEA WATER BY SOLAR ENERGY KuldeepGadhia
This project aims of developing an apparatus which will provide pure drinking water without the need of electric current and expensive filtration apparatus. Solar energy is the energy used in this apparatus. The effectiveness of solar collection is increased by the integration of Fresnel lens. Unconventional desalination systems are costlier and require high maintenance cost. So this situation forced society to depend on conventional technologies. Thus we have built a system to answer the demands of the society. The main aim is to develop an apparatus to provide drinking water for the society with increased feasibility and also at reduced cost with zero carbon emissions.
Solar Desalination of Seawater using a Single-Basin Single Sloped Solar Still...IRJET Journal
This document summarizes research on improving the efficiency of single-basin solar stills for desalinating seawater. It discusses the components of a basic solar still, including a wooden box, aluminum plate, glass cover, and water collector. Previous studies that tested different absorber materials and the use of a parabolic concentrator are summarized. The document then describes the fabrication and working of a single-basin solar still with a parabolic concentrator. Solar radiation is reflected and concentrated by the parabolic reflector onto the aluminum plate to increase evaporation and improve water production rates over a basic solar still without a concentrator.
This document provides a review of solar distillation technologies. It begins with an abstract that outlines the basic principles and benefits of solar distillation for purifying contaminated water sources. The body of the document then reviews the history and basic operation of solar stills, and summarizes several research studies that have evaluated different designs and parameters to improve the performance and output of solar distillation systems. These studies explored factors like increasing evaporation rates using fresnel lenses or capillarity-based designs. The document concludes by discussing opportunities to optimize the geometry and incorporate heat recapture to minimize thermal losses in solar distillation systems.
Solar Devices:- Solar Water Heater, Solar Still, Solar Cooker and Solar Dryer...IRJET Journal
This document provides a review of various solar devices, including solar water heaters, solar stills (distillers), solar cookers, and solar dryers. It discusses the basic working principles and components of each device. For solar water heaters, it describes different types of collectors and systems. For solar stills, it outlines various designs like single-slope and double-slope stills. For solar cookers, it mentions types like solar panel, box, and parabolic cookers. And for solar dryers, it notes they use solar energy for drying agricultural products and materials. The document aims to assess advancements in these solar technologies and provide insights into improving their practical implementation and efficiency.
Similar to A Review on Modified Solar Stills with Thermal Energy Storage and Fins (20)
TUNNELING IN HIMALAYAS WITH NATM METHOD: A SPECIAL REFERENCES TO SUNGAL TUNNE...IRJET Journal
1) The document discusses the Sungal Tunnel project in Jammu and Kashmir, India, which is being constructed using the New Austrian Tunneling Method (NATM).
2) NATM involves continuous monitoring during construction to adapt to changing ground conditions, and makes extensive use of shotcrete for temporary tunnel support.
3) The methodology section outlines the systematic geotechnical design process for tunnels according to Austrian guidelines, and describes the various steps of NATM tunnel construction including initial and secondary tunnel support.
STUDY THE EFFECT OF RESPONSE REDUCTION FACTOR ON RC FRAMED STRUCTUREIRJET Journal
This study examines the effect of response reduction factors (R factors) on reinforced concrete (RC) framed structures through nonlinear dynamic analysis. Three RC frame models with varying heights (4, 8, and 12 stories) were analyzed in ETABS software under different R factors ranging from 1 to 5. The results showed that displacement increased as the R factor decreased, indicating less linear behavior for lower R factors. Drift also decreased proportionally with increasing R factors from 1 to 5. Shear forces in the frames decreased with higher R factors. In general, R factors of 3 to 5 produced more satisfactory performance with less displacement and drift. The displacement variations between different building heights were consistent at different R factors. This study evaluated how R factors influence
A COMPARATIVE ANALYSIS OF RCC ELEMENT OF SLAB WITH STARK STEEL (HYSD STEEL) A...IRJET Journal
This study compares the use of Stark Steel and TMT Steel as reinforcement materials in a two-way reinforced concrete slab. Mechanical testing is conducted to determine the tensile strength, yield strength, and other properties of each material. A two-way slab design adhering to codes and standards is executed with both materials. The performance is analyzed in terms of deflection, stability under loads, and displacement. Cost analyses accounting for material, durability, maintenance, and life cycle costs are also conducted. The findings provide insights into the economic and structural implications of each material for reinforcement selection and recommendations on the most suitable material based on the analysis.
Effect of Camber and Angles of Attack on Airfoil CharacteristicsIRJET Journal
This document discusses a study analyzing the effect of camber, position of camber, and angle of attack on the aerodynamic characteristics of airfoils. Sixteen modified asymmetric NACA airfoils were analyzed using computational fluid dynamics (CFD) by varying the camber, camber position, and angle of attack. The results showed the relationship between these parameters and the lift coefficient, drag coefficient, and lift to drag ratio. This provides insight into how changes in airfoil geometry impact aerodynamic performance.
A Review on the Progress and Challenges of Aluminum-Based Metal Matrix Compos...IRJET Journal
This document reviews the progress and challenges of aluminum-based metal matrix composites (MMCs), focusing on their fabrication processes and applications. It discusses how various aluminum MMCs have been developed using reinforcements like borides, carbides, oxides, and nitrides to improve mechanical and wear properties. These composites have gained prominence for their lightweight, high-strength and corrosion resistance properties. The document also examines recent advancements in fabrication techniques for aluminum MMCs and their growing applications in industries such as aerospace and automotive. However, it notes that challenges remain around issues like improper mixing of reinforcements and reducing reinforcement agglomeration.
Dynamic Urban Transit Optimization: A Graph Neural Network Approach for Real-...IRJET Journal
This document discusses research on using graph neural networks (GNNs) for dynamic optimization of public transportation networks in real-time. GNNs represent transit networks as graphs with nodes as stops and edges as connections. The GNN model aims to optimize networks using real-time data on vehicle locations, arrival times, and passenger loads. This helps increase mobility, decrease traffic, and improve efficiency. The system continuously trains and infers to adapt to changing transit conditions, providing decision support tools. While research has focused on performance, more work is needed on security, socio-economic impacts, contextual generalization of models, continuous learning approaches, and effective real-time visualization.
Structural Analysis and Design of Multi-Storey Symmetric and Asymmetric Shape...IRJET Journal
This document summarizes a research project that aims to compare the structural performance of conventional slab and grid slab systems in multi-story buildings using ETABS software. The study will analyze both symmetric and asymmetric building models under various loading conditions. Parameters like deflections, moments, shears, and stresses will be examined to evaluate the structural effectiveness of each slab type. The results will provide insights into the comparative behavior of conventional and grid slabs to help engineers and architects select appropriate slab systems based on building layouts and design requirements.
A Review of “Seismic Response of RC Structures Having Plan and Vertical Irreg...IRJET Journal
This document summarizes and reviews a research paper on the seismic response of reinforced concrete (RC) structures with plan and vertical irregularities, with and without infill walls. It discusses how infill walls can improve or reduce the seismic performance of RC buildings, depending on factors like wall layout, height distribution, connection to the frame, and relative stiffness of walls and frames. The reviewed research paper analyzes the behavior of infill walls, effects of vertical irregularities, and seismic performance of high-rise structures under linear static and dynamic analysis. It studies response characteristics like story drift, deflection and shear. The document also provides literature on similar research investigating the effects of infill walls, soft stories, plan irregularities, and different
This document provides a review of machine learning techniques used in Advanced Driver Assistance Systems (ADAS). It begins with an abstract that summarizes key applications of machine learning in ADAS, including object detection, recognition, and decision-making. The introduction discusses the integration of machine learning in ADAS and how it is transforming vehicle safety. The literature review then examines several research papers on topics like lightweight deep learning models for object detection and lane detection models using image processing. It concludes by discussing challenges and opportunities in the field, such as improving algorithm robustness and adaptability.
Long Term Trend Analysis of Precipitation and Temperature for Asosa district,...IRJET Journal
The document analyzes temperature and precipitation trends in Asosa District, Benishangul Gumuz Region, Ethiopia from 1993 to 2022 based on data from the local meteorological station. The results show:
1) The average maximum and minimum annual temperatures have generally decreased over time, with maximum temperatures decreasing by a factor of -0.0341 and minimum by -0.0152.
2) Mann-Kendall tests found the decreasing temperature trends to be statistically significant for annual maximum temperatures but not for annual minimum temperatures.
3) Annual precipitation in Asosa District showed a statistically significant increasing trend.
The conclusions recommend development planners account for rising summer precipitation and declining temperatures in
P.E.B. Framed Structure Design and Analysis Using STAAD ProIRJET Journal
This document discusses the design and analysis of pre-engineered building (PEB) framed structures using STAAD Pro software. It provides an overview of PEBs, including that they are designed off-site with building trusses and beams produced in a factory. STAAD Pro is identified as a key tool for modeling, analyzing, and designing PEBs to ensure their performance and safety under various load scenarios. The document outlines modeling structural parts in STAAD Pro, evaluating structural reactions, assigning loads, and following international design codes and standards. In summary, STAAD Pro is used to design and analyze PEB framed structures to ensure safety and code compliance.
A Review on Innovative Fiber Integration for Enhanced Reinforcement of Concre...IRJET Journal
This document provides a review of research on innovative fiber integration methods for reinforcing concrete structures. It discusses studies that have explored using carbon fiber reinforced polymer (CFRP) composites with recycled plastic aggregates to develop more sustainable strengthening techniques. It also examines using ultra-high performance fiber reinforced concrete to improve shear strength in beams. Additional topics covered include the dynamic responses of FRP-strengthened beams under static and impact loads, and the performance of preloaded CFRP-strengthened fiber reinforced concrete beams. The review highlights the potential of fiber composites to enable more sustainable and resilient construction practices.
Survey Paper on Cloud-Based Secured Healthcare SystemIRJET Journal
This document summarizes a survey on securing patient healthcare data in cloud-based systems. It discusses using technologies like facial recognition, smart cards, and cloud computing combined with strong encryption to securely store patient data. The survey found that healthcare professionals believe digitizing patient records and storing them in a centralized cloud system would improve access during emergencies and enable more efficient care compared to paper-based systems. However, ensuring privacy and security of patient data is paramount as healthcare incorporates these digital technologies.
Review on studies and research on widening of existing concrete bridgesIRJET Journal
This document summarizes several studies that have been conducted on widening existing concrete bridges. It describes a study from China that examined load distribution factors for a bridge widened with composite steel-concrete girders. It also outlines challenges and solutions for widening a bridge in the UAE, including replacing bearings and stitching the new and existing structures. Additionally, it discusses two bridge widening projects in New Zealand that involved adding precast beams and stitching to connect structures. Finally, safety measures and challenges for strengthening a historic bridge in Switzerland under live traffic are presented.
React based fullstack edtech web applicationIRJET Journal
The document describes the architecture of an educational technology web application built using the MERN stack. It discusses the frontend developed with ReactJS, backend with NodeJS and ExpressJS, and MongoDB database. The frontend provides dynamic user interfaces, while the backend offers APIs for authentication, course management, and other functions. MongoDB enables flexible data storage. The architecture aims to provide a scalable, responsive platform for online learning.
A Comprehensive Review of Integrating IoT and Blockchain Technologies in the ...IRJET Journal
This paper proposes integrating Internet of Things (IoT) and blockchain technologies to help implement objectives of India's National Education Policy (NEP) in the education sector. The paper discusses how blockchain could be used for secure student data management, credential verification, and decentralized learning platforms. IoT devices could create smart classrooms, automate attendance tracking, and enable real-time monitoring. Blockchain would ensure integrity of exam processes and resource allocation, while smart contracts automate agreements. The paper argues this integration has potential to revolutionize education by making it more secure, transparent and efficient, in alignment with NEP goals. However, challenges like infrastructure needs, data privacy, and collaborative efforts are also discussed.
A REVIEW ON THE PERFORMANCE OF COCONUT FIBRE REINFORCED CONCRETE.IRJET Journal
This document provides a review of research on the performance of coconut fibre reinforced concrete. It summarizes several studies that tested different volume fractions and lengths of coconut fibres in concrete mixtures with varying compressive strengths. The studies found that coconut fibre improved properties like tensile strength, toughness, crack resistance, and spalling resistance compared to plain concrete. Volume fractions of 2-5% and fibre lengths of 20-50mm produced the best results. The document concludes that using a 4-5% volume fraction of coconut fibres 30-40mm in length with M30-M60 grade concrete would provide benefits based on previous research.
Optimizing Business Management Process Workflows: The Dynamic Influence of Mi...IRJET Journal
The document discusses optimizing business management processes through automation using Microsoft Power Automate and artificial intelligence. It provides an overview of Power Automate's key components and features for automating workflows across various apps and services. The document then presents several scenarios applying automation solutions to common business processes like data entry, monitoring, HR, finance, customer support, and more. It estimates the potential time and cost savings from implementing automation for each scenario. Finally, the conclusion emphasizes the transformative impact of AI and automation tools on business processes and the need for ongoing optimization.
Multistoried and Multi Bay Steel Building Frame by using Seismic DesignIRJET Journal
The document describes the seismic design of a G+5 steel building frame located in Roorkee, India according to Indian codes IS 1893-2002 and IS 800. The frame was analyzed using the equivalent static load method and response spectrum method, and its response in terms of displacements and shear forces were compared. Based on the analysis, the frame was designed as a seismic-resistant steel structure according to IS 800:2007. The software STAAD Pro was used for the analysis and design.
Cost Optimization of Construction Using Plastic Waste as a Sustainable Constr...IRJET Journal
This research paper explores using plastic waste as a sustainable and cost-effective construction material. The study focuses on manufacturing pavers and bricks using recycled plastic and partially replacing concrete with plastic alternatives. Initial results found that pavers and bricks made from recycled plastic demonstrate comparable strength and durability to traditional materials while providing environmental and cost benefits. Additionally, preliminary research indicates incorporating plastic waste as a partial concrete replacement significantly reduces construction costs without compromising structural integrity. The outcomes suggest adopting plastic waste in construction can address plastic pollution while optimizing costs, promoting more sustainable building practices.
Null Bangalore | Pentesters Approach to AWS IAMDivyanshu
#Abstract:
- Learn more about the real-world methods for auditing AWS IAM (Identity and Access Management) as a pentester. So let us proceed with a brief discussion of IAM as well as some typical misconfigurations and their potential exploits in order to reinforce the understanding of IAM security best practices.
- Gain actionable insights into AWS IAM policies and roles, using hands on approach.
#Prerequisites:
- Basic understanding of AWS services and architecture
- Familiarity with cloud security concepts
- Experience using the AWS Management Console or AWS CLI.
- For hands on lab create account on [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
# Scenario Covered:
- Basics of IAM in AWS
- Implementing IAM Policies with Least Privilege to Manage S3 Bucket
- Objective: Create an S3 bucket with least privilege IAM policy and validate access.
- Steps:
- Create S3 bucket.
- Attach least privilege policy to IAM user.
- Validate access.
- Exploiting IAM PassRole Misconfiguration
-Allows a user to pass a specific IAM role to an AWS service (ec2), typically used for service access delegation. Then exploit PassRole Misconfiguration granting unauthorized access to sensitive resources.
- Objective: Demonstrate how a PassRole misconfiguration can grant unauthorized access.
- Steps:
- Allow user to pass IAM role to EC2.
- Exploit misconfiguration for unauthorized access.
- Access sensitive resources.
- Exploiting IAM AssumeRole Misconfiguration with Overly Permissive Role
- An overly permissive IAM role configuration can lead to privilege escalation by creating a role with administrative privileges and allow a user to assume this role.
- Objective: Show how overly permissive IAM roles can lead to privilege escalation.
- Steps:
- Create role with administrative privileges.
- Allow user to assume the role.
- Perform administrative actions.
- Differentiation between PassRole vs AssumeRole
Try at [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
Supermarket Management System Project Report.pdfKamal Acharya
Supermarket management is a stand-alone J2EE using Eclipse Juno program.
This project contains all the necessary required information about maintaining
the supermarket billing system.
The core idea of this project to minimize the paper work and centralize the
data. Here all the communication is taken in secure manner. That is, in this
application the information will be stored in client itself. For further security the
data base is stored in the back-end oracle and so no intruders can access it.
Blood finder application project report (1).pdfKamal Acharya
Blood Finder is an emergency time app where a user can search for the blood banks as
well as the registered blood donors around Mumbai. This application also provide an
opportunity for the user of this application to become a registered donor for this user have
to enroll for the donor request from the application itself. If the admin wish to make user
a registered donor, with some of the formalities with the organization it can be done.
Specialization of this application is that the user will not have to register on sign-in for
searching the blood banks and blood donors it can be just done by installing the
application to the mobile.
The purpose of making this application is to save the user’s time for searching blood of
needed blood group during the time of the emergency.
This is an android application developed in Java and XML with the connectivity of
SQLite database. This application will provide most of basic functionality required for an
emergency time application. All the details of Blood banks and Blood donors are stored
in the database i.e. SQLite.
This application allowed the user to get all the information regarding blood banks and
blood donors such as Name, Number, Address, Blood Group, rather than searching it on
the different websites and wasting the precious time. This application is effective and
user friendly.
Prediction of Electrical Energy Efficiency Using Information on Consumer's Ac...PriyankaKilaniya
Energy efficiency has been important since the latter part of the last century. The main object of this survey is to determine the energy efficiency knowledge among consumers. Two separate districts in Bangladesh are selected to conduct the survey on households and showrooms about the energy and seller also. The survey uses the data to find some regression equations from which it is easy to predict energy efficiency knowledge. The data is analyzed and calculated based on five important criteria. The initial target was to find some factors that help predict a person's energy efficiency knowledge. From the survey, it is found that the energy efficiency awareness among the people of our country is very low. Relationships between household energy use behaviors are estimated using a unique dataset of about 40 households and 20 showrooms in Bangladesh's Chapainawabganj and Bagerhat districts. Knowledge of energy consumption and energy efficiency technology options is found to be associated with household use of energy conservation practices. Household characteristics also influence household energy use behavior. Younger household cohorts are more likely to adopt energy-efficient technologies and energy conservation practices and place primary importance on energy saving for environmental reasons. Education also influences attitudes toward energy conservation in Bangladesh. Low-education households indicate they primarily save electricity for the environment while high-education households indicate they are motivated by environmental concerns.
Applications of artificial Intelligence in Mechanical Engineering.pdfAtif Razi
Historically, mechanical engineering has relied heavily on human expertise and empirical methods to solve complex problems. With the introduction of computer-aided design (CAD) and finite element analysis (FEA), the field took its first steps towards digitization. These tools allowed engineers to simulate and analyze mechanical systems with greater accuracy and efficiency. However, the sheer volume of data generated by modern engineering systems and the increasing complexity of these systems have necessitated more advanced analytical tools, paving the way for AI.
AI offers the capability to process vast amounts of data, identify patterns, and make predictions with a level of speed and accuracy unattainable by traditional methods. This has profound implications for mechanical engineering, enabling more efficient design processes, predictive maintenance strategies, and optimized manufacturing operations. AI-driven tools can learn from historical data, adapt to new information, and continuously improve their performance, making them invaluable in tackling the multifaceted challenges of modern mechanical engineering.
Build the Next Generation of Apps with the Einstein 1 Platform.
Rejoignez Philippe Ozil pour une session de workshops qui vous guidera à travers les détails de la plateforme Einstein 1, l'importance des données pour la création d'applications d'intelligence artificielle et les différents outils et technologies que Salesforce propose pour vous apporter tous les bénéfices de l'IA.
Sri Guru Hargobind Ji - Bandi Chor Guru.pdfBalvir Singh
Sri Guru Hargobind Ji (19 June 1595 - 3 March 1644) is revered as the Sixth Nanak.
• On 25 May 1606 Guru Arjan nominated his son Sri Hargobind Ji as his successor. Shortly
afterwards, Guru Arjan was arrested, tortured and killed by order of the Mogul Emperor
Jahangir.
• Guru Hargobind's succession ceremony took place on 24 June 1606. He was barely
eleven years old when he became 6th Guru.
• As ordered by Guru Arjan Dev Ji, he put on two swords, one indicated his spiritual
authority (PIRI) and the other, his temporal authority (MIRI). He thus for the first time
initiated military tradition in the Sikh faith to resist religious persecution, protect
people’s freedom and independence to practice religion by choice. He transformed
Sikhs to be Saints and Soldier.
• He had a long tenure as Guru, lasting 37 years, 9 months and 3 days
Impartiality as per ISO /IEC 17025:2017 StandardMuhammadJazib15
This document provides basic guidelines for imparitallity requirement of ISO 17025. It defines in detial how it is met and wiudhwdih jdhsjdhwudjwkdbjwkdddddddddddkkkkkkkkkkkkkkkkkkkkkkkwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwioiiiiiiiiiiiii uwwwwwwwwwwwwwwwwhe wiqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq gbbbbbbbbbbbbb owdjjjjjjjjjjjjjjjjjjjj widhi owqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq uwdhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhwqiiiiiiiiiiiiiiiiiiiiiiiiiiiiw0pooooojjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj whhhhhhhhhhh wheeeeeeee wihieiiiiii wihe
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