Power point science final proaño
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The document discusses plans by group members to conduct experiments collecting fog in Quito, Ecuador. It proposes building fog collectors using 2x2 meter mesh screens, which studies show can collect 3cm of water per day under Quito's conditions. The group aims to show fog collection is possible and can be applied in Quito, choosing paramo and Andean forest areas with beneficial high altitudes. The document also discusses alternative fog collection methods using designs inspired by desert beetles and prior experiments in Pululahua demonstrating the potential to collect 8,000 liters of water daily.
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Portfolio_Shih-Yen Lo_20150107_screen
This document provides information about Shih-Yen Lo including his background, skills, education, experience and projects. It includes his contact information, languages spoken, computer skills, workshop skills, locations lived/worked, education history including degrees received from various institutions. It also lists several personal projects he has worked on including an exoskeleton accessory for tablets, a water harvesting device, and a phonograph-inspired candle recording device. Photos and diagrams are provided for some of the projects.
COLLECTING WATER FROM FOG!!!
The document describes the water cycle and the process of evaporation. It then provides instructions for an experiment using a solar still to clean dirty water. Water is poured into a plastic bowl along with dirt and food coloring to simulate dirty water. The bowl is covered with plastic wrap with a glass under it to collect the condensation. In sunlight, evaporation occurs and the water vapor condenses on the plastic wrap above the glass, leaving the dirt behind to produce clean water samples. The experiment demonstrates how nature can be used to clean water through evaporation and condensation in the water cycle.
fog farming
Fog farming is the study of using fog harvesting nets to capture water from fog for agricultural purposes. Researchers in Chile have successfully grown seeds of quinoa and chañar, two important Andean crops, using only water collected from fog. They found that fog is three times more abundant in the region than previously thought. Capturing fog could provide a sustainable source of irrigation in dry areas and help reintroduce important crops.
dry
This document summarizes investigations into failures of dry shippers used to transport scientific samples in Antarctica. It describes three common failure modes: loss of vacuum, improper charging, and improper handling during transit. The document then details investigations into three dry shippers that failed from Palmer Station, finding that one lost vacuum due to being shipped on its side, allowing gas to escape and blow out the vacuum port plug. The other two showed signs of chemical damage, likely from solvent exposure, indicating improper handling caused the failures. Proper charging, maintenance of vacuum, and correct orientation during shipping are necessary to prevent dry shipper failures.
Fabric filter/Bag House
Fabric filters are air pollution control devices that remove particulate matter from gas streams using filter bags. They work by having gas pass through filter bags, causing particulate matter to collect on the inner surfaces of the bags. There are several cleaning methods for fabric filters including mechanical shakers, reverse air, and reverse pulse jets. Proper selection of filter media and regular cleaning are important for effective particulate removal while avoiding issues like bag ruptures or pressure drops. Fabric filters are commonly used in industries like metallurgy, cement production, and ceramics manufacturing.
Multi desaturator cell
This document describes an experiment to determine the capillary pressure-saturation curves for a core sample using a multi-desaturator cell apparatus. The apparatus applies varying pressures to the core sample to remove water from the pores and measure the resulting saturation levels. The procedure involves saturating core samples with brine, placing them in the cell on a ceramic plate, increasing the air pressure to remove water, then measuring water production and plotting capillary pressure versus saturation. The goal is to understand how capillary pressure affects water saturation in porous rock cores at different pressures.
Soil water-extraction-methods
This document discusses different methods for extracting soil water, including the simple discontinuous method, constant vacuum method, and tension controlled extraction. It describes the components needed for vacuum systems including sampling bottles, vacuum tubes, and setup configurations. Key points covered include:
- The three main extraction methods are discontinuous evacuation, constant vacuum, and tension controlled extraction using a tensiometer.
- Components of vacuum systems include sampling bottles, vacuum tubes, overflow protectors, and buffer bottles. Glass bottles with implosion protection are recommended.
- Possible setups depend on the method, ranging from a single sampler connected to a bottle, to networks connecting multiple samplers and bottles to a vacuum unit.
-
Performance Evaluation of a Developed Multipurpose Solar Dryer
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
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This document provides information about Shih-Yen Lo including his background, skills, education, experience and projects. It includes his contact information, languages spoken, computer skills, workshop skills, locations lived/worked, education history including degrees received from various institutions. It also lists several personal projects he has worked on including an exoskeleton accessory for tablets, a water harvesting device, and a phonograph-inspired candle recording device. Photos and diagrams are provided for some of the projects.
COLLECTING WATER FROM FOG!!!
The document describes the water cycle and the process of evaporation. It then provides instructions for an experiment using a solar still to clean dirty water. Water is poured into a plastic bowl along with dirt and food coloring to simulate dirty water. The bowl is covered with plastic wrap with a glass under it to collect the condensation. In sunlight, evaporation occurs and the water vapor condenses on the plastic wrap above the glass, leaving the dirt behind to produce clean water samples. The experiment demonstrates how nature can be used to clean water through evaporation and condensation in the water cycle.
fog farming
Fog farming is the study of using fog harvesting nets to capture water from fog for agricultural purposes. Researchers in Chile have successfully grown seeds of quinoa and chañar, two important Andean crops, using only water collected from fog. They found that fog is three times more abundant in the region than previously thought. Capturing fog could provide a sustainable source of irrigation in dry areas and help reintroduce important crops.
dry
This document summarizes investigations into failures of dry shippers used to transport scientific samples in Antarctica. It describes three common failure modes: loss of vacuum, improper charging, and improper handling during transit. The document then details investigations into three dry shippers that failed from Palmer Station, finding that one lost vacuum due to being shipped on its side, allowing gas to escape and blow out the vacuum port plug. The other two showed signs of chemical damage, likely from solvent exposure, indicating improper handling caused the failures. Proper charging, maintenance of vacuum, and correct orientation during shipping are necessary to prevent dry shipper failures.
Fabric filter/Bag House
Fabric filters are air pollution control devices that remove particulate matter from gas streams using filter bags. They work by having gas pass through filter bags, causing particulate matter to collect on the inner surfaces of the bags. There are several cleaning methods for fabric filters including mechanical shakers, reverse air, and reverse pulse jets. Proper selection of filter media and regular cleaning are important for effective particulate removal while avoiding issues like bag ruptures or pressure drops. Fabric filters are commonly used in industries like metallurgy, cement production, and ceramics manufacturing.
Multi desaturator cell
This document describes an experiment to determine the capillary pressure-saturation curves for a core sample using a multi-desaturator cell apparatus. The apparatus applies varying pressures to the core sample to remove water from the pores and measure the resulting saturation levels. The procedure involves saturating core samples with brine, placing them in the cell on a ceramic plate, increasing the air pressure to remove water, then measuring water production and plotting capillary pressure versus saturation. The goal is to understand how capillary pressure affects water saturation in porous rock cores at different pressures.
Soil water-extraction-methods
This document discusses different methods for extracting soil water, including the simple discontinuous method, constant vacuum method, and tension controlled extraction. It describes the components needed for vacuum systems including sampling bottles, vacuum tubes, and setup configurations. Key points covered include:
- The three main extraction methods are discontinuous evacuation, constant vacuum, and tension controlled extraction using a tensiometer.
- Components of vacuum systems include sampling bottles, vacuum tubes, overflow protectors, and buffer bottles. Glass bottles with implosion protection are recommended.
- Possible setups depend on the method, ranging from a single sampler connected to a bottle, to networks connecting multiple samplers and bottles to a vacuum unit.
-
Performance Evaluation of a Developed Multipurpose Solar Dryer
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
Solar Desalination of Seawater using a Single-Basin Single Sloped Solar Still...
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.
PPT_aps
This document summarizes an experiment to simulate conditions in molecular clouds where planets and stars form, in order to better understand how water formed on Earth. The experiment uses a vacuum chamber, electron gun, cryostat, and other equipment to mimic the low pressures and temperatures of molecular clouds. Water samples will be frozen onto a cold surface in the chamber and exposed to the electron gun or heat to induce fractionation of oxygen isotopes, which will be analyzed to learn about fractionation factors that affected the distribution of isotopes in our solar system. Initial tests are establishing a control sample and procedures before running experiments on how thermal or electron-induced diffusion affects isotope ratios.
Seed Bank Design: Seed Drying Rooms
Seed Bank Design: Seed Drying Rooms
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For more information, Please see websites below:
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Organic Edible Schoolyards & Gardening with Children =
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Double Food Production from your School Garden with Organic Tech =
http://scribd.com/doc/239851079 ~
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Free School Gardening Art Posters =
http://scribd.com/doc/239851159 ~
`
Increase Food Production with Companion Planting in your School Garden =
http://scribd.com/doc/239851159 ~
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Healthy Foods Dramatically Improves Student Academic Success =
http://scribd.com/doc/239851348 ~
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Seed Bank Design: Seed Drying Rooms
The document provides guidance on designing seed drying rooms for seed banks. Key points include:
- Drying seeds prior to storage is important to prolong lifespan and prevent germination. The ideal is 15% relative humidity at 15°C.
- A purpose-built drying room allows large quantities of seeds to dry simultaneously and provides storage space. The size depends on the volume of seeds but is typically 25-125 cubic meters.
- Proper insulation, airflow, temperature control and monitoring equipment are needed to maintain the optimal drying conditions for seeds. Technical expertise is required to design an effective drying room.
V4I2-IJERTV4IS020774
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.
Emergency Alteration in Ventilation
A new method is proposed that can be implemented in case of mine fire. One of the most fatal accidents in Mining is outbreak of mine fire, this method helps to isolate the area under fire and simultaneously tries to diminish the fire to prevent coal loss.
particulate air pollution measurement
This document discusses various methods for collecting and measuring particulate pollutants. It describes techniques such as sedimentation jars for larger particles, high volume filtration for particles under 10 micrometers, and tape samplers. Impingement methods like wet and dry impingers are also covered, as well as electrostatic precipitation and thermal precipitation for smaller particles. The goal is to collect pollutant samples that can then be analyzed to determine mass concentration and chemical composition.
Porosity by saturation method
The objective of this test is to determine the bulk volume,
grain volume, pore volume and effective porosity of
interconnected pores of a core sample with the use of liquid
saturation method.
Design and Experimentation of Collector based Solar Dryer with Recirculation ...
Sun drying system is very common method of preserving agricultural product. Solar energy is used for heating
of air and to dry food substance. In open sun drying food is unprotected from rain, wind-borne dirt and dust,
infestation by insects, rodents and other animal. This process is practically attractive and environmentally sound.
Shell life of agricultural product is improve by drying. This paper present design and construction of active solar
dryer with recirculation technique. It consists of solar collector, drying chamber with netted trays and
recirculation arrangement. Air is allowed through inlet and it is heated up in collector. Then it is circulated in
drying chamber where it is utilize for drying. The design based on geographical location Wardha and
meteorological data were obtained for proper design specification. Locally available materials were used for
construction such as polyurethane glass, mild steel metal sheet, plywood sheet and insulating material.
Material Specific Heat Analysis
This document describes an experiment to determine the thermal conductivity of four different insulated can holders: one made of polyurethane foam, one of neoprene, one of EVA foam, and a Yeti Colster made of vacuum insulation. Cans filled with water were placed in each holder and their temperature was measured every 10 minutes over 60 minutes. The data was used to calculate the thermal conductivity of each holder using equations based on heat transfer principles. While thermal conductivity indicated effectiveness, other factors may also be important for a good insulated holder. Thermal conductivities were determined with less than 30% uncertainty.
Improvised respirometer dr. g. nagaraj
This document describes an improvised respirometer designed and built by Dr. G. Nagaraj using inexpensive and accessible materials. A regular respirometer measures respiration by detecting oxygen uptake or carbon dioxide release in a sealed container using an absorbent and manometric fluid in a U-tube. Dr. Nagaraj's design uses plastic bottles and tubing instead of glass, with an attached graph to track liquid displacement in the U-tube over time. The rate of respiration for an organism in the sealed bottle can be measured by recording displacement readings periodically. The improvised design provides an affordable way to conduct respiration experiments and projects to study factors that influence breathing rate.
Improvised respirometer dr. g. nagaraj
This document describes an improvised respirometer designed and built by Dr. G. Nagaraj using inexpensive and accessible materials. A regular respirometer measures respiration by detecting oxygen uptake or carbon dioxide release in a sealed container using an absorbent and manometric fluid in a U-tube. Dr. Nagaraj's design uses plastic bottles and tubing instead of glass, with an attached graph to track liquid displacement in the U-tube over time. The rate of respiration for an organism like a cockroach or seeds is measured by placing it in the bottle with potassium hydroxide pellets to absorb carbon dioxide and recording changes in the manometric fluid level every 10 minutes. The simple, low-cost design allows students
Improvised respirometer dr. g. nagaraj
This document describes an improvised respirometer designed and built by Dr. G. Nagaraj using inexpensive and accessible materials. A regular respirometer measures respiration by detecting oxygen uptake or carbon dioxide release in a sealed container using an absorbent and manometric fluid in a U-tube. Dr. Nagaraj's design uses plastic bottles and tubing instead of glass, with an attached graph to track liquid displacement in the U-tube over time. The rate of respiration for an organism in the sealed bottle can be measured by recording displacement readings periodically. The improvised design provides an affordable way to conduct respiration experiments and projects to study factors that influence breathing rate.
Improvised respirometer dr. g. nagaraj
This document describes an improvised respirometer designed and built by Dr. G. Nagaraj using inexpensive and accessible materials. A regular respirometer measures respiration by detecting oxygen uptake or carbon dioxide release in a sealed container using an absorbent and manometric fluid in a U-tube. Dr. Nagaraj's design uses plastic bottles and tubing instead of glass, with an attached graph to track liquid displacement in the U-tube over time. The rate of respiration for an organism in the sealed bottle can be measured by recording displacement readings periodically. The improvised design provides an affordable way to conduct respiration experiments and projects to study factors that influence breathing rate.
Comet Essay
An offshore oil rig experienced an oil spill that caused tremendous damage to the local ecosystem. Oil spills from rigs and tankers can spread for hundreds of miles, affecting coastlines and wildlife. Cleaning up oil spills is a complex process that requires isolating the spill, removing the oil from the environment, and treating oiled wildlife. Long term impacts may include harm to fisheries and loss of tourism revenue from contaminated beaches and wildlife.
Theoretical validation model of a double slope still with forced convection
Theoretical validation model of a double slope still with forced convectionJosé Andrés Alanís Navarro
The use of solar energy for water desalination becomes vital for sustainable water supply.
This paper aims to analyze the experimental behavior of double slope solar theoretically still
(DSSS). In this work, we proposed a theoretical model that can predict the DSSS performance. The
theoretical results of temperatures and the impact of wind speed on water production are in good
agreement with experimental findings. It is found that the temperature augments with augmenting the wind speed until a critical value, where the temperature starts to drop. In addition, water
production increases with increasing speed. In this way, we determined the optimum wind speed
to have maximum water production with minimum energy consumption simultaneously. The validation of the theoretical model allows us to predict the DSSS production under different climatic
conditions and to scale DSSS dimensions according to the need of water. The salinity of the water
is not a determining factor in its production. The production at 4.2 kWh/m2 daily insolation was
0.58 L/d. The volume of distilled water reaches a maximum value (62.3% efficiency) when glass
and environment temperatures are similar. This phenomenon occurs at 5.5 m/s wind speedPract 5.pptx
This document describes experiments to determine soil moisture properties including:
1. Gypsum resistance blocks are used to indirectly measure soil moisture content based on the principle that electrical resistance between electrodes in blocks embedded in soil depends on moisture content.
2. Maximum water holding capacity is determined by saturating soil samples and measuring retained moisture after drainage.
3. Field capacity is measured after saturating soil samples in situ and allowing 48-72 hours for drainage, representing moisture retained by gravity.
4. Permanent wilting point is the moisture content where sunflower plants in sealed cans with restricted water do not recover from wilting overnight in a dark, humid environment.
Data logger presentation
The document contains data from an experiment measuring relative humidity and temperature over a period of 50 minutes. It records temperature and humidity readings taken at 1-minute intervals. It also includes graphs plotting the temperature and humidity measurements over time. The document discusses the results and asks questions about transpiration and the factors that influence it.
Data logger presentation
The document contains data from an experiment measuring relative humidity and temperature over time inside a plastic bag. It includes tables showing the temperature and humidity measurements taken every minute for an hour. It also includes graphs plotting the temperature and humidity measurements and discussion questions about transpiration and the factors that influence it.
Thesis
This document provides an introduction to adsorption refrigeration techniques. It discusses how adsorption refrigeration can provide an alternative refrigeration solution in developing areas without reliable electricity. The document then summarizes the history and development of adsorption refrigeration, environmental regulations driving its development, advantages over absorption refrigeration, key terms related to adsorption refrigeration systems, and the objectives and aims of studying adsorption refrigeration as an alternative refrigeration approach.
Essay
An essay is typically composed of 5 or 6 paragraphs: an introductory paragraph with a thesis statement outlining the main argument or opinion, 3 or 4 supporting paragraphs that provide evidence and analysis to back up the thesis, and a concluding paragraph to wrap up the essay. The document provides examples of strong thesis statements that clearly state an argument compared to weaker statements that are too vague. It also notes that an essay is meant to analyze or speculate on a subject in a short literary composition.
Essay
An essay is typically composed of 5 or 6 paragraphs: an introductory paragraph with a thesis statement outlining the main argument or opinion, 3 or 4 supporting paragraphs that provide evidence and analysis to back up the thesis, and a concluding paragraph to wrap up the essay. The document provides examples of strong thesis statements that clearly state an argument compared to weaker statements that are too vague. It also notes that an essay is meant to analyze or speculate on a subject in a literary composition.
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Solar Desalination of Seawater using a Single-Basin Single Sloped Solar Still...
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.
PPT_aps
This document summarizes an experiment to simulate conditions in molecular clouds where planets and stars form, in order to better understand how water formed on Earth. The experiment uses a vacuum chamber, electron gun, cryostat, and other equipment to mimic the low pressures and temperatures of molecular clouds. Water samples will be frozen onto a cold surface in the chamber and exposed to the electron gun or heat to induce fractionation of oxygen isotopes, which will be analyzed to learn about fractionation factors that affected the distribution of isotopes in our solar system. Initial tests are establishing a control sample and procedures before running experiments on how thermal or electron-induced diffusion affects isotope ratios.
Seed Bank Design: Seed Drying Rooms
Seed Bank Design: Seed Drying Rooms
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For more information, Please see websites below:
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Organic Edible Schoolyards & Gardening with Children =
http://scribd.com/doc/239851214 ~
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Double Food Production from your School Garden with Organic Tech =
http://scribd.com/doc/239851079 ~
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Free School Gardening Art Posters =
http://scribd.com/doc/239851159 ~
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Increase Food Production with Companion Planting in your School Garden =
http://scribd.com/doc/239851159 ~
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Healthy Foods Dramatically Improves Student Academic Success =
http://scribd.com/doc/239851348 ~
`
City Chickens for your Organic School Garden =
http://scribd.com/doc/239850440 ~
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Simple Square Foot Gardening for Schools - Teacher Guide =
http://scribd.com/doc/239851110 ~
Seed Bank Design: Seed Drying Rooms
The document provides guidance on designing seed drying rooms for seed banks. Key points include:
- Drying seeds prior to storage is important to prolong lifespan and prevent germination. The ideal is 15% relative humidity at 15°C.
- A purpose-built drying room allows large quantities of seeds to dry simultaneously and provides storage space. The size depends on the volume of seeds but is typically 25-125 cubic meters.
- Proper insulation, airflow, temperature control and monitoring equipment are needed to maintain the optimal drying conditions for seeds. Technical expertise is required to design an effective drying room.
V4I2-IJERTV4IS020774
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.
Emergency Alteration in Ventilation
A new method is proposed that can be implemented in case of mine fire. One of the most fatal accidents in Mining is outbreak of mine fire, this method helps to isolate the area under fire and simultaneously tries to diminish the fire to prevent coal loss.
particulate air pollution measurement
This document discusses various methods for collecting and measuring particulate pollutants. It describes techniques such as sedimentation jars for larger particles, high volume filtration for particles under 10 micrometers, and tape samplers. Impingement methods like wet and dry impingers are also covered, as well as electrostatic precipitation and thermal precipitation for smaller particles. The goal is to collect pollutant samples that can then be analyzed to determine mass concentration and chemical composition.
Porosity by saturation method
The objective of this test is to determine the bulk volume,
grain volume, pore volume and effective porosity of
interconnected pores of a core sample with the use of liquid
saturation method.
Design and Experimentation of Collector based Solar Dryer with Recirculation ...
Sun drying system is very common method of preserving agricultural product. Solar energy is used for heating
of air and to dry food substance. In open sun drying food is unprotected from rain, wind-borne dirt and dust,
infestation by insects, rodents and other animal. This process is practically attractive and environmentally sound.
Shell life of agricultural product is improve by drying. This paper present design and construction of active solar
dryer with recirculation technique. It consists of solar collector, drying chamber with netted trays and
recirculation arrangement. Air is allowed through inlet and it is heated up in collector. Then it is circulated in
drying chamber where it is utilize for drying. The design based on geographical location Wardha and
meteorological data were obtained for proper design specification. Locally available materials were used for
construction such as polyurethane glass, mild steel metal sheet, plywood sheet and insulating material.
Material Specific Heat Analysis
This document describes an experiment to determine the thermal conductivity of four different insulated can holders: one made of polyurethane foam, one of neoprene, one of EVA foam, and a Yeti Colster made of vacuum insulation. Cans filled with water were placed in each holder and their temperature was measured every 10 minutes over 60 minutes. The data was used to calculate the thermal conductivity of each holder using equations based on heat transfer principles. While thermal conductivity indicated effectiveness, other factors may also be important for a good insulated holder. Thermal conductivities were determined with less than 30% uncertainty.
Improvised respirometer dr. g. nagaraj
This document describes an improvised respirometer designed and built by Dr. G. Nagaraj using inexpensive and accessible materials. A regular respirometer measures respiration by detecting oxygen uptake or carbon dioxide release in a sealed container using an absorbent and manometric fluid in a U-tube. Dr. Nagaraj's design uses plastic bottles and tubing instead of glass, with an attached graph to track liquid displacement in the U-tube over time. The rate of respiration for an organism in the sealed bottle can be measured by recording displacement readings periodically. The improvised design provides an affordable way to conduct respiration experiments and projects to study factors that influence breathing rate.
Improvised respirometer dr. g. nagaraj
This document describes an improvised respirometer designed and built by Dr. G. Nagaraj using inexpensive and accessible materials. A regular respirometer measures respiration by detecting oxygen uptake or carbon dioxide release in a sealed container using an absorbent and manometric fluid in a U-tube. Dr. Nagaraj's design uses plastic bottles and tubing instead of glass, with an attached graph to track liquid displacement in the U-tube over time. The rate of respiration for an organism like a cockroach or seeds is measured by placing it in the bottle with potassium hydroxide pellets to absorb carbon dioxide and recording changes in the manometric fluid level every 10 minutes. The simple, low-cost design allows students
Improvised respirometer dr. g. nagaraj
This document describes an improvised respirometer designed and built by Dr. G. Nagaraj using inexpensive and accessible materials. A regular respirometer measures respiration by detecting oxygen uptake or carbon dioxide release in a sealed container using an absorbent and manometric fluid in a U-tube. Dr. Nagaraj's design uses plastic bottles and tubing instead of glass, with an attached graph to track liquid displacement in the U-tube over time. The rate of respiration for an organism in the sealed bottle can be measured by recording displacement readings periodically. The improvised design provides an affordable way to conduct respiration experiments and projects to study factors that influence breathing rate.
Improvised respirometer dr. g. nagaraj
This document describes an improvised respirometer designed and built by Dr. G. Nagaraj using inexpensive and accessible materials. A regular respirometer measures respiration by detecting oxygen uptake or carbon dioxide release in a sealed container using an absorbent and manometric fluid in a U-tube. Dr. Nagaraj's design uses plastic bottles and tubing instead of glass, with an attached graph to track liquid displacement in the U-tube over time. The rate of respiration for an organism in the sealed bottle can be measured by recording displacement readings periodically. The improvised design provides an affordable way to conduct respiration experiments and projects to study factors that influence breathing rate.
Comet Essay
An offshore oil rig experienced an oil spill that caused tremendous damage to the local ecosystem. Oil spills from rigs and tankers can spread for hundreds of miles, affecting coastlines and wildlife. Cleaning up oil spills is a complex process that requires isolating the spill, removing the oil from the environment, and treating oiled wildlife. Long term impacts may include harm to fisheries and loss of tourism revenue from contaminated beaches and wildlife.
Theoretical validation model of a double slope still with forced convection
Theoretical validation model of a double slope still with forced convectionJosé Andrés Alanís Navarro
The use of solar energy for water desalination becomes vital for sustainable water supply.
This paper aims to analyze the experimental behavior of double slope solar theoretically still
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Dear students,
Here is what we saw last week. Feel free of revising it as many times as you wish.
ms
Comparatives superlatives
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Power point science final proaño
- 1. Members: Francisco Llerena Carlos Paz Brayhant Proaño Joel Rodriguez
- 2. OBJECTIVE Show that is possible to collect fog through two experiments and also apply them in Quito
- 6. ACCORDING TO STUDIES THE AVERAGE MESH 2 METERS BY 2 METERS, CAN COLLECT 3 CM WATER FOR DAY, IN CONDITIONS SIMILAR TO EXISTING IN QUITO.
- 8. SO THAT WE HAVE CHOSEN THE “PÁRAMO” AND “BOSQUES ANDINOS”, AREAS WHERE THE ALTITUDE IS A FACTOR BENEFICIAL TO OUR SYSTEMS,
- 9. IMPLEMENTING NEW RESEARCH OF THE FOG COLLECTORS, SHOWING THAT 10% OR MORE COULD EXTRACT WITH A FINER MESH AND THE ADVANCED SYSTEM, OUR SYSTEM WOULD BE MORE EFFECTIVE.
- 10. IN ADDITION THE LOCATION OF COLLECTORS IS VERY IMPORTANT BECAUSE THE CLIMATE HELP TO THE FUNCTION OF THE SYSTEM.
- 12. ECUADOR IS A COUNTRY THAT HAS THIS METEROLOGICAL PHENOMENA SPECIALLY IN THE ¨ANDEAN REGION¨
- 13. We can find places to recollect the reasons is that this places have some factors like:
- 14. HUMIDITY PLANTS THAT CATCH THE HUMIDITY, LIKE: FRAILEJONES FORESTS
- 15. Collect to many water Abundance of shrub plants that catch the humidity The temperature between 10 and 2 grades In the parts of cold weather, this forest grow in mountain areas where is all the time clouds That is the reason that this places names forest of fog ¨PARAMO¨ ¨BOSQUES ANDINOS¨
- 17. There’s a beetle from the african namib desert, that hydrated itself thanks to its unique shape beetle. water mist is deposited in its wavy back and thus comes back to his mouth. the designer kitae pak has been based on this insect, to create a collector that could be used in arid areas of the world.
- 18. Shreerang Chhatre also created a water trap fog that can be used in poor areas. Chhatre explains beetle shell has portions which attract and other water repellent, so that their mouth ends. That’s because these experiment is able to be realized in almost every place with just enough fog.
- 19. The best location is in general the Andean Region. The best place in Pichincha to make this experiment is in Pululahua, because of studies and other experiments previously done, Scientifics confirm that it can be collected around 8,000 litters of water daily.
- 21. This is a detector, called a cloud chamber is a sealed box inside which there is a mixture of alcohol vapor and air
- 22. Passing sufficient energy charged particles passing through the chamber (muons secondary cosmic rays , for example ) ions leads to act as nuclei of condensation of the droplets growing alcohol.
- 25. 1- Body of the camera 2- Alcohol Reservoir 3- Base of the chamber 4-Dry ice deposit
- 26. 1. Can use a plastic or glass bowl (provided that the joints are watertight. Approximate dimensions are 20 cm x 15 cm wide between 15 and 20 cm high. 2. Order that inside the chamber is used alcohol vapor strips of felt or the like of a few cm
- 27. 3. To close the camera an aluminum sheet of the same dimensions is used as the base of the tank (or whatever). 4.It is very important that the chamber is airtight, which can be obtained by placing a strip of rubber strip (with a similar profile to that of figure) and attaching it to the camera body with tape 5. Finally, cover the portion of the metal sheet over the inner chamber with black tape to increase the visibility of the traces.
- 28. This is the most convenient place for the experiment because it provides very fog and cold weather is perfect for that extraction is adequate at 100% Also in the mountains can find moors, as we know, provide a lot of fog and will be easier to study an collect.
- 29. We think that the weather and conditions allow the proper functioning of the experiment because as stated above it is necessary that the climate is like cold and a low temperature which is appropriate to study the fog and collect it.