This document summarizes a study that modified a solar dryer design to more effectively dry mango pulp. The authors presented a solar dryer design with a spiral convection tube to improve heating rates. This design inducts radiation from the sun and emits radiant energy from within to increase heating by 22-27%. The study investigated the modified dryer experimentally and theoretically. Key parameters like temperature, efficiency, air flow, and materials were considered in the design and testing of the solar dryer for drying mango pulp.
Design, Fabrication and Performance Evaluation of an Indirect Solar Dryer for...IRJET Journal
This document describes the design, fabrication, and performance evaluation of an indirect solar dryer for drying agricultural products. The dryer consists of a solar air collector to heat air, a drying cabinet, and a centrifugal blower. The collector uses baffles to increase the heating time of air as it passes through. Heated air is blown into the drying chamber where agricultural products like apple slices are dried. The dryer was tested and found to be effective at drying products using solar energy in a sustainable way without fossil fuels.
IRJET- Design and Fabrication of Solar Dryer by Natural ConvectionIRJET Journal
This document describes the design and fabrication of a solar dryer that uses natural convection. It begins with an abstract that discusses food loss issues and how solar drying can help preserve agricultural products using renewable energy. It then provides details on the design calculations and considerations for the solar dryer components, including the collector area needed to dry a sample product load. Test results are presented showing drying temperatures achieved using the natural convection solar dryer design as well as modifications using forced convection and a mirror attachment. In conclusion, the solar dryer provides an economical way to dry crops using solar energy.
IRJET- Performance Analysis of Evacuated Tube Solar Dryer with Desiccant Dehu...IRJET Journal
1. The document describes a study analyzing the performance of an evacuated tube solar dryer with a desiccant dehumidifier and phase change material (PCM) as thermal storage.
2. In the setup, air is passed through a desiccant bed to increase its moisture absorption capacity before being heated in evacuated tubes and used to dry 5kg of chopped spinach leaves over 8 hours.
3. Preliminary results found that using a desiccant increased drying effectiveness by producing hotter, drier air for drying compared to the solar dryer without a desiccant. Maximum temperatures reached 70°C with desiccant versus 67°C without.
IRJET- Recent Innovative Techniques for Developments of Solar DryerIRJET Journal
This document summarizes recent innovative techniques that have been developed for solar dryers. It discusses direct, indirect, mixed-mode, greenhouse, automatic, biomass, truncated pyramid, and tunnel solar dryers. Recent developments include integrating solar collectors with thermal energy storage, recirculating air, using convergent nozzles or fins to increase airflow and efficiency. Mathematical and computational fluid dynamics modeling techniques are also discussed that can be used to analyze and optimize solar dryer design and performance. Several studies evaluating different solar dryer designs and their ability to dry various agricultural products more quickly and efficiently than open-air drying are summarized.
A review on “Electric dryer for areca nut”.IRJET Journal
This document reviews an electric dryer designed for drying areca nuts. It begins with an abstract that outlines the need for an electric dryer due to extended drying times of areca nuts using natural or conventional drying methods during rainy seasons. It then provides details on the components of the dryer, which includes a drying chamber, blower unit, and heating chamber. The methodology section explains the drying process, which involves loading boiled areca nuts into the chamber, preheating the chamber, blowing heated air through the nuts using a blower and furnace, then monitoring moisture levels until drying is complete. The dryer is able to control temperature and airflow to reduce drying time while improving quality compared to traditional drying methods.
Performance Analysis of Forced Convection Solar Dryer for TurmericIRJET Journal
This document describes the design, development, and performance analysis of a forced convection solar dryer for drying turmeric. Key points:
1) A forced convection solar dryer was designed and built consisting of a solar collector, blower, drying chamber, and supporting frame. Experiments were conducted drying turmeric using this solar dryer.
2) Results showed that turmeric could be dried from an initial 85.33% moisture content to a final 10.76% moisture content within 48 hours of sunshine using the solar dryer, much faster than open-air drying.
3) Drying time, solar intensity, moisture loss, and dryer efficiency were evaluated under different experimental conditions. The solar
IRJET- Design & Construction of Solar Dryer for Mango SlicesIRJET Journal
The document describes the design and construction of a solar cabinet dryer for drying mango slices in India. Key features of the dryer include a tilted glass top at a 37 degree angle, adjustable air vents for airflow control, and four movable mesh trays inside the drying chamber. Design calculations were performed to determine the required drying time, energy needs, and dryer size based on initial mango moisture content of 85% down to a final storage content of 6%. A prototype dryer was successfully constructed locally and tested for drying 1 kg of mango slices within 10 hours.
This document summarizes different types of solar dryer technologies used for food preservation. It discusses direct and indirect solar dryers, as well as forced and natural convection dryers. Direct dryers expose food directly to solar radiation, while indirect dryers use solar-heated air to dry food. Forced convection dryers use fans to circulate heated air, while natural convection relies on temperature gradients. The document also reviews prior studies on optimizing drying efficiency and effectiveness for different foods. In general, mixed-mode dryers that use both direct and indirect drying methods tend to reduce drying time compared to only direct or indirect drying.
Design, Fabrication and Performance Evaluation of an Indirect Solar Dryer for...IRJET Journal
This document describes the design, fabrication, and performance evaluation of an indirect solar dryer for drying agricultural products. The dryer consists of a solar air collector to heat air, a drying cabinet, and a centrifugal blower. The collector uses baffles to increase the heating time of air as it passes through. Heated air is blown into the drying chamber where agricultural products like apple slices are dried. The dryer was tested and found to be effective at drying products using solar energy in a sustainable way without fossil fuels.
IRJET- Design and Fabrication of Solar Dryer by Natural ConvectionIRJET Journal
This document describes the design and fabrication of a solar dryer that uses natural convection. It begins with an abstract that discusses food loss issues and how solar drying can help preserve agricultural products using renewable energy. It then provides details on the design calculations and considerations for the solar dryer components, including the collector area needed to dry a sample product load. Test results are presented showing drying temperatures achieved using the natural convection solar dryer design as well as modifications using forced convection and a mirror attachment. In conclusion, the solar dryer provides an economical way to dry crops using solar energy.
IRJET- Performance Analysis of Evacuated Tube Solar Dryer with Desiccant Dehu...IRJET Journal
1. The document describes a study analyzing the performance of an evacuated tube solar dryer with a desiccant dehumidifier and phase change material (PCM) as thermal storage.
2. In the setup, air is passed through a desiccant bed to increase its moisture absorption capacity before being heated in evacuated tubes and used to dry 5kg of chopped spinach leaves over 8 hours.
3. Preliminary results found that using a desiccant increased drying effectiveness by producing hotter, drier air for drying compared to the solar dryer without a desiccant. Maximum temperatures reached 70°C with desiccant versus 67°C without.
IRJET- Recent Innovative Techniques for Developments of Solar DryerIRJET Journal
This document summarizes recent innovative techniques that have been developed for solar dryers. It discusses direct, indirect, mixed-mode, greenhouse, automatic, biomass, truncated pyramid, and tunnel solar dryers. Recent developments include integrating solar collectors with thermal energy storage, recirculating air, using convergent nozzles or fins to increase airflow and efficiency. Mathematical and computational fluid dynamics modeling techniques are also discussed that can be used to analyze and optimize solar dryer design and performance. Several studies evaluating different solar dryer designs and their ability to dry various agricultural products more quickly and efficiently than open-air drying are summarized.
A review on “Electric dryer for areca nut”.IRJET Journal
This document reviews an electric dryer designed for drying areca nuts. It begins with an abstract that outlines the need for an electric dryer due to extended drying times of areca nuts using natural or conventional drying methods during rainy seasons. It then provides details on the components of the dryer, which includes a drying chamber, blower unit, and heating chamber. The methodology section explains the drying process, which involves loading boiled areca nuts into the chamber, preheating the chamber, blowing heated air through the nuts using a blower and furnace, then monitoring moisture levels until drying is complete. The dryer is able to control temperature and airflow to reduce drying time while improving quality compared to traditional drying methods.
Performance Analysis of Forced Convection Solar Dryer for TurmericIRJET Journal
This document describes the design, development, and performance analysis of a forced convection solar dryer for drying turmeric. Key points:
1) A forced convection solar dryer was designed and built consisting of a solar collector, blower, drying chamber, and supporting frame. Experiments were conducted drying turmeric using this solar dryer.
2) Results showed that turmeric could be dried from an initial 85.33% moisture content to a final 10.76% moisture content within 48 hours of sunshine using the solar dryer, much faster than open-air drying.
3) Drying time, solar intensity, moisture loss, and dryer efficiency were evaluated under different experimental conditions. The solar
IRJET- Design & Construction of Solar Dryer for Mango SlicesIRJET Journal
The document describes the design and construction of a solar cabinet dryer for drying mango slices in India. Key features of the dryer include a tilted glass top at a 37 degree angle, adjustable air vents for airflow control, and four movable mesh trays inside the drying chamber. Design calculations were performed to determine the required drying time, energy needs, and dryer size based on initial mango moisture content of 85% down to a final storage content of 6%. A prototype dryer was successfully constructed locally and tested for drying 1 kg of mango slices within 10 hours.
This document summarizes different types of solar dryer technologies used for food preservation. It discusses direct and indirect solar dryers, as well as forced and natural convection dryers. Direct dryers expose food directly to solar radiation, while indirect dryers use solar-heated air to dry food. Forced convection dryers use fans to circulate heated air, while natural convection relies on temperature gradients. The document also reviews prior studies on optimizing drying efficiency and effectiveness for different foods. In general, mixed-mode dryers that use both direct and indirect drying methods tend to reduce drying time compared to only direct or indirect drying.
Design and Fabrication of Solar Air DryerIRJET Journal
This document describes the design and construction of a solar air dryer for food preservation. The dryer uses solar energy to heat air that is then passed through drying cabinets to dry food items placed on drying trays. The heated air dries the food faster than natural sun drying alone. The dryer helps dry foods quickly to a required moisture level while maintaining high product quality. Materials used include glass, aluminum, wood and insulation. A schematic diagram and 3D design of the dryer are presented, along with the working principle and formulas for calculating moisture lost during drying. In conclusion, the existing solar dryer design performs well but could be improved with adjustments to increase efficiency.
IRJET- Design and Fabrication of Efficient Solar DryerIRJET Journal
This document describes the design and fabrication of an efficient solar dryer. It aims to develop a portable solar dryer that allows for bulk drying of crops in a controlled manner. The dryer design incorporates transparent shelves at different heights to improve thermal efficiency and allow for drying of different crops simultaneously. Lightweight and durable materials like aluminum and acrylic are used to make the dryer portable and able to withstand weather conditions. Experimental results show the dryer achieved maximum temperatures between 2-4pm, allowing crops to be dried within 2-3 hours. The portable and multi-level design improves on limitations of conventional solar dryers.
The document describes a study on improving the thermal efficiency of a solar tunnel drier. A working model of a solar tunnel drier was constructed using a single layer of polyethylene sheeting. Experiments were conducted to measure the temperature increase inside the drier compared to ambient temperature. Additional experiments used double layers of polyethylene sheeting with air gaps of 50mm and 100mm between the layers. The purpose was to determine if the additional insulation of an air gap improved the thermal efficiency of the drier. Temperature, humidity and solar intensity readings were taken over an 8 hour period and compared between the single layer and double layer configurations.
IRJET- Study of Forced Convection Evacuatedtube Solar Grape DryerIRJET Journal
This document summarizes a study on a forced convection evacuated tube solar grape dryer. The study analyzes the dryer's efficiency both analytically and experimentally using an evacuated tube solar collector for heat transfer. The solar collector evacuated tube is designed and manufactured based on analytical calculations. The drying performance of grapes is studied both analytically and experimentally. The thermal efficiency of the solar collector and drying effectiveness of the manufactured dryer were found to be higher than previously available designs. This dryer design is more suitable for practical implementation as it maintains similar drying conditions as traditional designs.
IRJET- Electric Cloths Dryer and DehydratorIRJET Journal
1. The document describes the design of an electric machine that combines a clothes dryer and food dehydrator into a single unit.
2. It details the components of the machine including heating coils, fans, temperature sensors to control drying temperatures for clothes and food.
3. Testing showed the clothes dryer could dry clothes in 20-25 minutes and the food dehydrator could dehydrate various foods like carrots and potatoes within 2-4 hours, depending on the food type and thickness.
Design and Development of Humidity Controller for Prevention of Microbiologic...IRJET Journal
The document describes the design and development of a humidity controller to prevent microbiological spoilage in vegetables. Key points:
- A hot air drying system was developed using an air heater boiler, fans, temperature sensors, and an isolated cabin to dry vegetables. This reduces drying time from 3-4 days conventionally to 7-8 hours.
- The system aims to maintain optimal humidity levels between 45-55% for drying different vegetables like tomatoes and ginger.
- Trials showed the developed system successfully dried vegetables and maintained desired temperatures and humidity levels in different weather conditions.
In many countries,agricultural products are dried under the open sun. However,this way of drying deg rades the quality of the dried products due to interferen ce from external impurities and uneven drying rates . Numerous types of solar dryers have been designed a nd developed in various parts of the world,yieldin g varying degrees of technical performance. Basically,there are three types of solar dryers;direct sol ar dryers,indirect solar dryers and mixed-mode dryers. This r eview paper is focused on hybrid solar dryers. Drying proceeded successfully even under unfavorable weath er conditions in the hybrid mode of operation these are the most cost effective type of dryers and are easy to fabricate and use. In this review paper,we reviewe d different types of hybrid solar dryers and different design m odifications applied to them in order to increase t heir effectiveness.
This document describes a hybrid solar fruit dryer designed and built by students and a professor in India. It discusses the increasing demand for fossil fuels and need for alternative energy sources like solar power. The dryer uses a solar collector to heat air, which is then blown into a drying cabinet containing fruits to remove moisture efficiently and preserve the fruits with better quality and longer shelf life than open-air drying. Experimental tests were conducted on the dryer to analyze factors like drying rate, thermal efficiency, and exit air temperature under different operating conditions. The aim was to develop an affordable and effective solar-powered option to help local farmers dry crops profitably.
IRJET- Automation of Solar Tunnel Dryer using Arduino for SapotaIRJET Journal
This document describes the design and testing of an automated solar tunnel dryer for drying sapota fruit using Arduino. Key points:
1. A solar tunnel dryer was constructed using common materials like GI sheets and pipes to provide a controlled drying environment for agricultural products like sapota.
2. An Arduino board was used to automate the dryer and control parameters like temperature, humidity, and exhaust fan speed to maintain optimal drying conditions.
3. Sapota slices were dried in the automated solar tunnel dryer and measurements found that the controlled conditions consumed less time than conventional drying while maintaining quality.
Numerical Simulation of Solar Greenhouse Dryer Using Computational Fluid Dyna...RSIS International
Moisture removal from crops and other food items is
one of the ways to preserve them for longer duration. Previously,
drying openly in sun was used to reduce moisture content. But it
had some disadvantages like contamination due to dirt and other
unwanted elements as well as attack by rodents and birds.
Drying in covered close space with vents would be helpful in
overcoming these problems. Solar greenhouse dryers are the
close conduits in which crops can be dried without negatively
affecting the nutrition value. The factors affecting the crop
drying are solar radiation, climatic conditions, material of which
the dryer is made of and shape of the dryer. A lot of
experimental investigations have been done to improve the
drying rate. With the advances in computational power and
numerical techniques, Computational Fluid Dynamics (CFD) has
emerged as a powerful tool to optimize any design. In the present
study, simulations have been done on greenhouse dryer with
modifications to identify the temperature distribution with
variation in wind velocity. Different radiation levels have also
been found out at different locations in the dryer. The model of
the dryer has been created in CREO 5.0 and analysis has been
performed using ANSYS 14.0. The simulation has been done for
both forced and natural convection. Obtained results have been
validated with the experimental work done by previous works.
Better drying rate has been obtained for forced circulation as
compared to natural convection which is in agreement with the
available experimental results.
Design and Development of Domestic Solar DryerIRJET Journal
This document describes the design and development of a domestic solar dryer. The solar dryer is intended to help preserve foods like fruits, vegetables, and herbs using solar energy. It aims to be portable so it can be easily moved and used in households.
The dryer design includes components like trays to hold foods, a solar fan to circulate hot air, and a toughened glass cover to allow sunlight to enter while protecting foods. It is intended to dry foods faster and more efficiently than traditional sun drying methods, while preventing spoilage from things like rain or pests. Testing showed the dryer was able to successfully dry food samples.
Future work could focus on improving drying times further and incorporating heat
Drying characteristics of a hygroscopic material in a fabricated naturalIAEME Publication
This document summarizes a study on drying characteristics of banana in a solar cabinet drier. The study involved fabricating a natural convective solar cabinet drier consisting of a flat plate collector and drying cabinet. Experiments were conducted drying banana in thin layers over 3 consecutive days. Temperature, humidity, and moisture content were recorded. Results showed the maximum drying air temperature was 69.5°C, drying banana from 93.5% to 7.13% moisture content over 2 days. The solar cabinet drier was found to be 60% more efficient than traditional sun drying and effectively dried banana for local farmers with a low-cost design.
IRJET- Artificial Lightning in Solar Tunnel Dryer for Curry LeavesIRJET Journal
This document summarizes a research paper on using an artificial lighting system in a solar tunnel dryer to dry curry leaves. The system uses high-wattage incandescent lamps inside the drying chamber to internally heat the leaves and remove water when solar energy is unavailable. Tests show the artificially lit drying unit reduces drying time compared to conventional methods. The system controls temperature and other parameters using sensors connected to an Arduino board. Results found the minimum temperature was 31.8°C and maximum humidity was 35% when drying curry leaves overnight using the artificial lighting system.
IRJET- Automatically Controlled Solar Tunnel Dryer using Arduino for CorianderIRJET Journal
This document summarizes the design and testing of an automatically controlled solar tunnel dryer for drying coriander using Arduino. The dryer was designed with a temperature control system to maintain consistent drying conditions. Testing showed the dryer was able to control temperature and reduce the moisture content of coriander samples from 88.43% to 6.91% over one day, demonstrating it can efficiently dry agricultural products while preserving quality. The automatic control system regulated parameters like temperature, humidity and air flow to optimize the drying process.
Performance Evaluation of a Developed Multipurpose Solar Dryerijtsrd
Post harvest losses in developing countries have contributed to the unavailability of foodstuff. Estimation of these losses is generally cited to be of the order of 4 but under very adverse conditions, it is estimated as high as 100 . A significant percentage of these losses are related to improper and or untimely preservation of foodstuffs. This research work is therefore aimed at developing a multipurpose solar dryer. The solar dryer consists mainly of solar collector and dryer chamber compartment. The materials used in this research work include based frame, transparent fiberglass cover, an absorber oven baked Aluminium , thermometer, wire gauze, etc. The frame was constructed from a wood bars with a dimension of 900 mm x 900 mm x 600 mm. The dryer chamber is a truncated rectangle and it comprises of a double walls made up of a plain ply board measuring 800 mm x 800 mm x by 500 mm with a transparent fiberglass cover inclined at an angle of 15o. Three different samples namely sample A sliced plantains , sample B sliced yams , and sample C fish were used for test performance evaluation of the developed multipurpose solar dryer. The results obtained reveal that overall heat energy transfer coefficient of 4.91w m0C, dryer chamber rate of 0.654 kg hr., and dryer chamber area of 0.659 m2 were required by the solar dryer. Besides, the solar dryer dried the three samples used in this research work within duration of 8 hours i.e., 9am 5pm . The maximum solar chamber dryer temperature and ambient temperature were recorded as 55.00 oC and 35.46 oC respectively. Besides, the minimum lower temperature values recorded were obtained as 40.45 oC for solar chamber dryer temperature and 29.02 oC for ambient temperature. The improved results obtained with the multipurpose solar dryer were due to improved temperature obtained with the solar dryer chamber. Orhorhoro EK | Aregbe O | Tamuno RI "Performance Evaluation of a Developed Multipurpose Solar Dryer" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-4 , June 2020, URL: https://www.ijtsrd.com/papers/ijtsrd31195.pdf Paper Url :https://www.ijtsrd.com/engineering/mechanical-engineering/31195/performance-evaluation-of-a-developed-multipurpose-solar-dryer/orhorhoro-ek
IRJET- Automatically Controlled Solar Tunnel Dryer using Arduino for Curry Le...IRJET Journal
This document describes an automatically controlled solar tunnel dryer developed for drying curry leaves using Arduino. The dryer uses solar energy to heat and dry curry leaves inside a closed chamber. Temperature, humidity, and fan speed are controlled using an Arduino board and sensors to maintain optimal drying conditions. Testing showed the automatic dryer reduced the initial moisture content of 65.39% in curry leaves down to 4.12% within one day, consuming less time than conventional drying methods. The controlled environment and automation allows for improved quality and productivity in small-scale agricultural drying compared to traditional sun drying.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
This document presents a computational fluid dynamics (CFD) simulation of a domestic direct type multi-shelf solar dryer. The study aims to validate the design of this dryer and demonstrate its temperature distribution and radiation heat flux. The simulation is performed using ANSYS-Fluent software. The results show that the air temperature inside the dryer cabinet increases significantly to around 326K due to natural air circulation. Radiation heat flux contours indicate that the dryer shelves receive sufficient flux to validate the dryer's design for food drying applications.
IRJET- Artificial Lightning in Solar Tunnel Dryer for CorianderIRJET Journal
This document describes the design and testing of an artificial lighting system integrated into a solar tunnel dryer for drying coriander. The solar tunnel dryer was constructed using materials like GI sheets, PVC pipes, and polythene sheets. Sensors were used to monitor temperature, humidity, and solar radiation during drying experiments. An Arduino, relays, LCD display, and fans were used to control the drying process. Testing showed that the artificial lighting helped reduce the drying time of coriander compared to sun drying alone. The initial moisture content of 89.5% was reduced to 7% after 1 day of drying using the solar tunnel dryer integrated with artificial lighting. This system provides a way to dry crops continuously even
AN APPLICATION OF SOLAR DRYER IN ORDER TO REMOVE MOISTURE AND DIFFERENCIATING...Anugrah Soy
Due to the current trends towards higher cost of fossil fuels and uncertainty regarding future cost
and availability, use of solar energy in food processing will probably increase and become more
economically feasible in the near future.The solar dryer is one of them which help to preserve our food and many eatable things like vegetable fruits and many more things . In this experiment we find that how much moisture removed from the sample which is present in solar dryer and the sample which is present in ordinary air and we compare both of them by mathematical calculation. In this paper we took green chili, some of the chili we put inside the dryer and some in the ordinary air and then compare their moisture removed with respect to time and temperature.
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
More Related Content
Similar to Comparative Study of Experimental Investigation and Theoretical Verification of Modified Solar Dryer used to Produce Mango Pulp
Design and Fabrication of Solar Air DryerIRJET Journal
This document describes the design and construction of a solar air dryer for food preservation. The dryer uses solar energy to heat air that is then passed through drying cabinets to dry food items placed on drying trays. The heated air dries the food faster than natural sun drying alone. The dryer helps dry foods quickly to a required moisture level while maintaining high product quality. Materials used include glass, aluminum, wood and insulation. A schematic diagram and 3D design of the dryer are presented, along with the working principle and formulas for calculating moisture lost during drying. In conclusion, the existing solar dryer design performs well but could be improved with adjustments to increase efficiency.
IRJET- Design and Fabrication of Efficient Solar DryerIRJET Journal
This document describes the design and fabrication of an efficient solar dryer. It aims to develop a portable solar dryer that allows for bulk drying of crops in a controlled manner. The dryer design incorporates transparent shelves at different heights to improve thermal efficiency and allow for drying of different crops simultaneously. Lightweight and durable materials like aluminum and acrylic are used to make the dryer portable and able to withstand weather conditions. Experimental results show the dryer achieved maximum temperatures between 2-4pm, allowing crops to be dried within 2-3 hours. The portable and multi-level design improves on limitations of conventional solar dryers.
The document describes a study on improving the thermal efficiency of a solar tunnel drier. A working model of a solar tunnel drier was constructed using a single layer of polyethylene sheeting. Experiments were conducted to measure the temperature increase inside the drier compared to ambient temperature. Additional experiments used double layers of polyethylene sheeting with air gaps of 50mm and 100mm between the layers. The purpose was to determine if the additional insulation of an air gap improved the thermal efficiency of the drier. Temperature, humidity and solar intensity readings were taken over an 8 hour period and compared between the single layer and double layer configurations.
IRJET- Study of Forced Convection Evacuatedtube Solar Grape DryerIRJET Journal
This document summarizes a study on a forced convection evacuated tube solar grape dryer. The study analyzes the dryer's efficiency both analytically and experimentally using an evacuated tube solar collector for heat transfer. The solar collector evacuated tube is designed and manufactured based on analytical calculations. The drying performance of grapes is studied both analytically and experimentally. The thermal efficiency of the solar collector and drying effectiveness of the manufactured dryer were found to be higher than previously available designs. This dryer design is more suitable for practical implementation as it maintains similar drying conditions as traditional designs.
IRJET- Electric Cloths Dryer and DehydratorIRJET Journal
1. The document describes the design of an electric machine that combines a clothes dryer and food dehydrator into a single unit.
2. It details the components of the machine including heating coils, fans, temperature sensors to control drying temperatures for clothes and food.
3. Testing showed the clothes dryer could dry clothes in 20-25 minutes and the food dehydrator could dehydrate various foods like carrots and potatoes within 2-4 hours, depending on the food type and thickness.
Design and Development of Humidity Controller for Prevention of Microbiologic...IRJET Journal
The document describes the design and development of a humidity controller to prevent microbiological spoilage in vegetables. Key points:
- A hot air drying system was developed using an air heater boiler, fans, temperature sensors, and an isolated cabin to dry vegetables. This reduces drying time from 3-4 days conventionally to 7-8 hours.
- The system aims to maintain optimal humidity levels between 45-55% for drying different vegetables like tomatoes and ginger.
- Trials showed the developed system successfully dried vegetables and maintained desired temperatures and humidity levels in different weather conditions.
In many countries,agricultural products are dried under the open sun. However,this way of drying deg rades the quality of the dried products due to interferen ce from external impurities and uneven drying rates . Numerous types of solar dryers have been designed a nd developed in various parts of the world,yieldin g varying degrees of technical performance. Basically,there are three types of solar dryers;direct sol ar dryers,indirect solar dryers and mixed-mode dryers. This r eview paper is focused on hybrid solar dryers. Drying proceeded successfully even under unfavorable weath er conditions in the hybrid mode of operation these are the most cost effective type of dryers and are easy to fabricate and use. In this review paper,we reviewe d different types of hybrid solar dryers and different design m odifications applied to them in order to increase t heir effectiveness.
This document describes a hybrid solar fruit dryer designed and built by students and a professor in India. It discusses the increasing demand for fossil fuels and need for alternative energy sources like solar power. The dryer uses a solar collector to heat air, which is then blown into a drying cabinet containing fruits to remove moisture efficiently and preserve the fruits with better quality and longer shelf life than open-air drying. Experimental tests were conducted on the dryer to analyze factors like drying rate, thermal efficiency, and exit air temperature under different operating conditions. The aim was to develop an affordable and effective solar-powered option to help local farmers dry crops profitably.
IRJET- Automation of Solar Tunnel Dryer using Arduino for SapotaIRJET Journal
This document describes the design and testing of an automated solar tunnel dryer for drying sapota fruit using Arduino. Key points:
1. A solar tunnel dryer was constructed using common materials like GI sheets and pipes to provide a controlled drying environment for agricultural products like sapota.
2. An Arduino board was used to automate the dryer and control parameters like temperature, humidity, and exhaust fan speed to maintain optimal drying conditions.
3. Sapota slices were dried in the automated solar tunnel dryer and measurements found that the controlled conditions consumed less time than conventional drying while maintaining quality.
Numerical Simulation of Solar Greenhouse Dryer Using Computational Fluid Dyna...RSIS International
Moisture removal from crops and other food items is
one of the ways to preserve them for longer duration. Previously,
drying openly in sun was used to reduce moisture content. But it
had some disadvantages like contamination due to dirt and other
unwanted elements as well as attack by rodents and birds.
Drying in covered close space with vents would be helpful in
overcoming these problems. Solar greenhouse dryers are the
close conduits in which crops can be dried without negatively
affecting the nutrition value. The factors affecting the crop
drying are solar radiation, climatic conditions, material of which
the dryer is made of and shape of the dryer. A lot of
experimental investigations have been done to improve the
drying rate. With the advances in computational power and
numerical techniques, Computational Fluid Dynamics (CFD) has
emerged as a powerful tool to optimize any design. In the present
study, simulations have been done on greenhouse dryer with
modifications to identify the temperature distribution with
variation in wind velocity. Different radiation levels have also
been found out at different locations in the dryer. The model of
the dryer has been created in CREO 5.0 and analysis has been
performed using ANSYS 14.0. The simulation has been done for
both forced and natural convection. Obtained results have been
validated with the experimental work done by previous works.
Better drying rate has been obtained for forced circulation as
compared to natural convection which is in agreement with the
available experimental results.
Design and Development of Domestic Solar DryerIRJET Journal
This document describes the design and development of a domestic solar dryer. The solar dryer is intended to help preserve foods like fruits, vegetables, and herbs using solar energy. It aims to be portable so it can be easily moved and used in households.
The dryer design includes components like trays to hold foods, a solar fan to circulate hot air, and a toughened glass cover to allow sunlight to enter while protecting foods. It is intended to dry foods faster and more efficiently than traditional sun drying methods, while preventing spoilage from things like rain or pests. Testing showed the dryer was able to successfully dry food samples.
Future work could focus on improving drying times further and incorporating heat
Drying characteristics of a hygroscopic material in a fabricated naturalIAEME Publication
This document summarizes a study on drying characteristics of banana in a solar cabinet drier. The study involved fabricating a natural convective solar cabinet drier consisting of a flat plate collector and drying cabinet. Experiments were conducted drying banana in thin layers over 3 consecutive days. Temperature, humidity, and moisture content were recorded. Results showed the maximum drying air temperature was 69.5°C, drying banana from 93.5% to 7.13% moisture content over 2 days. The solar cabinet drier was found to be 60% more efficient than traditional sun drying and effectively dried banana for local farmers with a low-cost design.
IRJET- Artificial Lightning in Solar Tunnel Dryer for Curry LeavesIRJET Journal
This document summarizes a research paper on using an artificial lighting system in a solar tunnel dryer to dry curry leaves. The system uses high-wattage incandescent lamps inside the drying chamber to internally heat the leaves and remove water when solar energy is unavailable. Tests show the artificially lit drying unit reduces drying time compared to conventional methods. The system controls temperature and other parameters using sensors connected to an Arduino board. Results found the minimum temperature was 31.8°C and maximum humidity was 35% when drying curry leaves overnight using the artificial lighting system.
IRJET- Automatically Controlled Solar Tunnel Dryer using Arduino for CorianderIRJET Journal
This document summarizes the design and testing of an automatically controlled solar tunnel dryer for drying coriander using Arduino. The dryer was designed with a temperature control system to maintain consistent drying conditions. Testing showed the dryer was able to control temperature and reduce the moisture content of coriander samples from 88.43% to 6.91% over one day, demonstrating it can efficiently dry agricultural products while preserving quality. The automatic control system regulated parameters like temperature, humidity and air flow to optimize the drying process.
Performance Evaluation of a Developed Multipurpose Solar Dryerijtsrd
Post harvest losses in developing countries have contributed to the unavailability of foodstuff. Estimation of these losses is generally cited to be of the order of 4 but under very adverse conditions, it is estimated as high as 100 . A significant percentage of these losses are related to improper and or untimely preservation of foodstuffs. This research work is therefore aimed at developing a multipurpose solar dryer. The solar dryer consists mainly of solar collector and dryer chamber compartment. The materials used in this research work include based frame, transparent fiberglass cover, an absorber oven baked Aluminium , thermometer, wire gauze, etc. The frame was constructed from a wood bars with a dimension of 900 mm x 900 mm x 600 mm. The dryer chamber is a truncated rectangle and it comprises of a double walls made up of a plain ply board measuring 800 mm x 800 mm x by 500 mm with a transparent fiberglass cover inclined at an angle of 15o. Three different samples namely sample A sliced plantains , sample B sliced yams , and sample C fish were used for test performance evaluation of the developed multipurpose solar dryer. The results obtained reveal that overall heat energy transfer coefficient of 4.91w m0C, dryer chamber rate of 0.654 kg hr., and dryer chamber area of 0.659 m2 were required by the solar dryer. Besides, the solar dryer dried the three samples used in this research work within duration of 8 hours i.e., 9am 5pm . The maximum solar chamber dryer temperature and ambient temperature were recorded as 55.00 oC and 35.46 oC respectively. Besides, the minimum lower temperature values recorded were obtained as 40.45 oC for solar chamber dryer temperature and 29.02 oC for ambient temperature. The improved results obtained with the multipurpose solar dryer were due to improved temperature obtained with the solar dryer chamber. Orhorhoro EK | Aregbe O | Tamuno RI "Performance Evaluation of a Developed Multipurpose Solar Dryer" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-4 , June 2020, URL: https://www.ijtsrd.com/papers/ijtsrd31195.pdf Paper Url :https://www.ijtsrd.com/engineering/mechanical-engineering/31195/performance-evaluation-of-a-developed-multipurpose-solar-dryer/orhorhoro-ek
IRJET- Automatically Controlled Solar Tunnel Dryer using Arduino for Curry Le...IRJET Journal
This document describes an automatically controlled solar tunnel dryer developed for drying curry leaves using Arduino. The dryer uses solar energy to heat and dry curry leaves inside a closed chamber. Temperature, humidity, and fan speed are controlled using an Arduino board and sensors to maintain optimal drying conditions. Testing showed the automatic dryer reduced the initial moisture content of 65.39% in curry leaves down to 4.12% within one day, consuming less time than conventional drying methods. The controlled environment and automation allows for improved quality and productivity in small-scale agricultural drying compared to traditional sun drying.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
This document presents a computational fluid dynamics (CFD) simulation of a domestic direct type multi-shelf solar dryer. The study aims to validate the design of this dryer and demonstrate its temperature distribution and radiation heat flux. The simulation is performed using ANSYS-Fluent software. The results show that the air temperature inside the dryer cabinet increases significantly to around 326K due to natural air circulation. Radiation heat flux contours indicate that the dryer shelves receive sufficient flux to validate the dryer's design for food drying applications.
IRJET- Artificial Lightning in Solar Tunnel Dryer for CorianderIRJET Journal
This document describes the design and testing of an artificial lighting system integrated into a solar tunnel dryer for drying coriander. The solar tunnel dryer was constructed using materials like GI sheets, PVC pipes, and polythene sheets. Sensors were used to monitor temperature, humidity, and solar radiation during drying experiments. An Arduino, relays, LCD display, and fans were used to control the drying process. Testing showed that the artificial lighting helped reduce the drying time of coriander compared to sun drying alone. The initial moisture content of 89.5% was reduced to 7% after 1 day of drying using the solar tunnel dryer integrated with artificial lighting. This system provides a way to dry crops continuously even
AN APPLICATION OF SOLAR DRYER IN ORDER TO REMOVE MOISTURE AND DIFFERENCIATING...Anugrah Soy
Due to the current trends towards higher cost of fossil fuels and uncertainty regarding future cost
and availability, use of solar energy in food processing will probably increase and become more
economically feasible in the near future.The solar dryer is one of them which help to preserve our food and many eatable things like vegetable fruits and many more things . In this experiment we find that how much moisture removed from the sample which is present in solar dryer and the sample which is present in ordinary air and we compare both of them by mathematical calculation. In this paper we took green chili, some of the chili we put inside the dryer and some in the ordinary air and then compare their moisture removed with respect to time and temperature.
Similar to Comparative Study of Experimental Investigation and Theoretical Verification of Modified Solar Dryer used to Produce Mango Pulp (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.
CHINA’S GEO-ECONOMIC OUTREACH IN CENTRAL ASIAN COUNTRIES AND FUTURE PROSPECTjpsjournal1
The rivalry between prominent international actors for dominance over Central Asia's hydrocarbon
reserves and the ancient silk trade route, along with China's diplomatic endeavours in the area, has been
referred to as the "New Great Game." This research centres on the power struggle, considering
geopolitical, geostrategic, and geoeconomic variables. Topics including trade, political hegemony, oil
politics, and conventional and nontraditional security are all explored and explained by the researcher.
Using Mackinder's Heartland, Spykman Rimland, and Hegemonic Stability theories, examines China's role
in Central Asia. This study adheres to the empirical epistemological method and has taken care of
objectivity. This study analyze primary and secondary research documents critically to elaborate role of
china’s geo economic outreach in central Asian countries and its future prospect. China is thriving in trade,
pipeline politics, and winning states, according to this study, thanks to important instruments like the
Shanghai Cooperation Organisation and the Belt and Road Economic Initiative. According to this study,
China is seeing significant success in commerce, pipeline politics, and gaining influence on other
governments. This success may be attributed to the effective utilisation of key tools such as the Shanghai
Cooperation Organisation and the Belt and Road Economic Initiative.
ACEP Magazine edition 4th launched on 05.06.2024Rahul
This document provides information about the third edition of the magazine "Sthapatya" published by the Association of Civil Engineers (Practicing) Aurangabad. It includes messages from current and past presidents of ACEP, memories and photos from past ACEP events, information on life time achievement awards given by ACEP, and a technical article on concrete maintenance, repairs and strengthening. The document highlights activities of ACEP and provides a technical educational article for members.
Advanced control scheme of doubly fed induction generator for wind turbine us...IJECEIAES
This paper describes a speed control device for generating electrical energy on an electricity network based on the doubly fed induction generator (DFIG) used for wind power conversion systems. At first, a double-fed induction generator model was constructed. A control law is formulated to govern the flow of energy between the stator of a DFIG and the energy network using three types of controllers: proportional integral (PI), sliding mode controller (SMC) and second order sliding mode controller (SOSMC). Their different results in terms of power reference tracking, reaction to unexpected speed fluctuations, sensitivity to perturbations, and resilience against machine parameter alterations are compared. MATLAB/Simulink was used to conduct the simulations for the preceding study. Multiple simulations have shown very satisfying results, and the investigations demonstrate the efficacy and power-enhancing capabilities of the suggested control system.
Electric vehicle and photovoltaic advanced roles in enhancing the financial p...IJECEIAES
Climate change's impact on the planet forced the United Nations and governments to promote green energies and electric transportation. The deployments of photovoltaic (PV) and electric vehicle (EV) systems gained stronger momentum due to their numerous advantages over fossil fuel types. The advantages go beyond sustainability to reach financial support and stability. The work in this paper introduces the hybrid system between PV and EV to support industrial and commercial plants. This paper covers the theoretical framework of the proposed hybrid system including the required equation to complete the cost analysis when PV and EV are present. In addition, the proposed design diagram which sets the priorities and requirements of the system is presented. The proposed approach allows setup to advance their power stability, especially during power outages. The presented information supports researchers and plant owners to complete the necessary analysis while promoting the deployment of clean energy. The result of a case study that represents a dairy milk farmer supports the theoretical works and highlights its advanced benefits to existing plants. The short return on investment of the proposed approach supports the paper's novelty approach for the sustainable electrical system. In addition, the proposed system allows for an isolated power setup without the need for a transmission line which enhances the safety of the electrical network
Introduction- e - waste – definition - sources of e-waste– hazardous substances in e-waste - effects of e-waste on environment and human health- need for e-waste management– e-waste handling rules - waste minimization techniques for managing e-waste – recycling of e-waste - disposal treatment methods of e- waste – mechanism of extraction of precious metal from leaching solution-global Scenario of E-waste – E-waste in India- case studies.
We have compiled the most important slides from each speaker's presentation. This year’s compilation, available for free, captures the key insights and contributions shared during the DfMAy 2024 conference.
Low power architecture of logic gates using adiabatic techniquesnooriasukmaningtyas
The growing significance of portable systems to limit power consumption in ultra-large-scale-integration chips of very high density, has recently led to rapid and inventive progresses in low-power design. The most effective technique is adiabatic logic circuit design in energy-efficient hardware. This paper presents two adiabatic approaches for the design of low power circuits, modified positive feedback adiabatic logic (modified PFAL) and the other is direct current diode based positive feedback adiabatic logic (DC-DB PFAL). Logic gates are the preliminary components in any digital circuit design. By improving the performance of basic gates, one can improvise the whole system performance. In this paper proposed circuit design of the low power architecture of OR/NOR, AND/NAND, and XOR/XNOR gates are presented using the said approaches and their results are analyzed for powerdissipation, delay, power-delay-product and rise time and compared with the other adiabatic techniques along with the conventional complementary metal oxide semiconductor (CMOS) designs reported in the literature. It has been found that the designs with DC-DB PFAL technique outperform with the percentage improvement of 65% for NOR gate and 7% for NAND gate and 34% for XNOR gate over the modified PFAL techniques at 10 MHz respectively.