Study of adsorption-based cooling and potable water generation

In present day, global warming and climate change have become more apparent. The Kyoto Protocol increased pressure on governments to reduce the emission of greenhouse gases which contribute to global warming. One such group of gases are hydrofluorocarbons (HFCs) used as refrigerants in refrigeration...

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Main Author: Tay, Xiu-Ling
Other Authors: Leong Kai Choong
Format: Final Year Project
Language:English
Published: 2017
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Online Access:http://hdl.handle.net/10356/71376
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-713762023-03-04T19:05:28Z Study of adsorption-based cooling and potable water generation Tay, Xiu-Ling Leong Kai Choong School of Mechanical and Aerospace Engineering DRNTU::Engineering::Aeronautical engineering In present day, global warming and climate change have become more apparent. The Kyoto Protocol increased pressure on governments to reduce the emission of greenhouse gases which contribute to global warming. One such group of gases are hydrofluorocarbons (HFCs) used as refrigerants in refrigeration systems. Additionally, a typical refrigeration system uses electricity that requires the burning of fossil fuels, to operate. Hence, there is greater global interest in exploring greener alternatives to alleviate the issue. Adsorption refrigeration system presents itself as a cleaner alternative to the typical refrigeration system as it utilizes waste heat instead of electricity as a power source. Moreover, environmentally friendly substances like silica gel-water pair are used as refrigerants. In this project, the adsorption refrigeration cycle using a two-bed adsorption system was investigated. The refrigerant used was silica gel-water pair. Parameters such as the temperature of heat source and cycle time were varied to understand their effect on the system performance. From the experimental results, a maximum COP of 0.274, SCP of 21.29 W/kg and water production rate of 2.19 mL/min were obtained. Simulations were performed on MATLAB using the lumped parameter modelling. The same parameters varied experimentally were implemented in the simulations. Experimental results calculated were then compared with simulation results. The trends obtained for the effect of hot water inlet temperature on COP and SCP were similar. However, the trend for the effect of cycle time on COP and SCP differed. Bachelor of Engineering (Aerospace Engineering) 2017-05-16T06:52:56Z 2017-05-16T06:52:56Z 2017 Final Year Project (FYP) http://hdl.handle.net/10356/71376 en Nanyang Technological University 83 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering::Aeronautical engineering
spellingShingle DRNTU::Engineering::Aeronautical engineering
Tay, Xiu-Ling
Study of adsorption-based cooling and potable water generation
description In present day, global warming and climate change have become more apparent. The Kyoto Protocol increased pressure on governments to reduce the emission of greenhouse gases which contribute to global warming. One such group of gases are hydrofluorocarbons (HFCs) used as refrigerants in refrigeration systems. Additionally, a typical refrigeration system uses electricity that requires the burning of fossil fuels, to operate. Hence, there is greater global interest in exploring greener alternatives to alleviate the issue. Adsorption refrigeration system presents itself as a cleaner alternative to the typical refrigeration system as it utilizes waste heat instead of electricity as a power source. Moreover, environmentally friendly substances like silica gel-water pair are used as refrigerants. In this project, the adsorption refrigeration cycle using a two-bed adsorption system was investigated. The refrigerant used was silica gel-water pair. Parameters such as the temperature of heat source and cycle time were varied to understand their effect on the system performance. From the experimental results, a maximum COP of 0.274, SCP of 21.29 W/kg and water production rate of 2.19 mL/min were obtained. Simulations were performed on MATLAB using the lumped parameter modelling. The same parameters varied experimentally were implemented in the simulations. Experimental results calculated were then compared with simulation results. The trends obtained for the effect of hot water inlet temperature on COP and SCP were similar. However, the trend for the effect of cycle time on COP and SCP differed.
author2 Leong Kai Choong
author_facet Leong Kai Choong
Tay, Xiu-Ling
format Final Year Project
author Tay, Xiu-Ling
author_sort Tay, Xiu-Ling
title Study of adsorption-based cooling and potable water generation
title_short Study of adsorption-based cooling and potable water generation
title_full Study of adsorption-based cooling and potable water generation
title_fullStr Study of adsorption-based cooling and potable water generation
title_full_unstemmed Study of adsorption-based cooling and potable water generation
title_sort study of adsorption-based cooling and potable water generation
publishDate 2017
url http://hdl.handle.net/10356/71376
_version_ 1759854878443700224