Passive daytime radiative cooling

The increasing effect of climate change have pushed Singapore’s weather to be significantly warmer as years passes by, boosting the use of air-conditioning units to keep the local workforce productive under hot and humid conditions. However, such conventional cooling systems are known to increase lo...

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Main Author: Nurhadi Abdul Rahman
Other Authors: Hong Li
Format: Final Year Project
Language:English
Published: Nanyang Technological University 2021
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Online Access:https://hdl.handle.net/10356/154108
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1541082021-12-19T13:48:36Z Passive daytime radiative cooling Nurhadi Abdul Rahman Hong Li Lam Yee Cheong School of Mechanical and Aerospace Engineering ehongli@ntu.edu.sg, MYClam@ntu.edu.sg Engineering::Mechanical engineering The increasing effect of climate change have pushed Singapore’s weather to be significantly warmer as years passes by, boosting the use of air-conditioning units to keep the local workforce productive under hot and humid conditions. However, such conventional cooling systems are known to increase local carbon emissions, hence there was a need to explore an alternative efficient cooling technology. Passive Daytime Radiative Cooling (PDRC) is an emergent field of cooling phenomena that have gained traction in recent years. It involves the use of sunlight reflectance and heat radiation process to encourage cooling effect on the surface. Hence, the theory behind PDRC will be focused on this project, thoroughly examining its functions and theories inclusive of sunlight functions, light scattering techniques, and material structures. Our findings will primarily concentrate on the optical cooling properties of the specimens, involving the use of light scattering and heat localisation techniques to induce efficient passive and radiative cooling effects. Previous research involving the use of hydrogels and fabrication methods are greatly considered for this project. The addition of BaSO4 pigments and coloured dyes are also considered to meet research gap identified in this paper using two experimental methods: Radiative Cooling Test and Water Absorption Test. The above-mentioned experiments will be carried out to determine cooling capabilities, mechanical stability, and suitability of the specimens for outdoor environments. Bachelor of Engineering (Mechanical Engineering) 2021-12-19T12:07:20Z 2021-12-19T12:07:20Z 2021 Final Year Project (FYP) Nurhadi Abdul Rahman (2021). Passive daytime radiative cooling. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/154108 https://hdl.handle.net/10356/154108 en A299 application/pdf Nanyang Technological University
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Mechanical engineering
spellingShingle Engineering::Mechanical engineering
Nurhadi Abdul Rahman
Passive daytime radiative cooling
description The increasing effect of climate change have pushed Singapore’s weather to be significantly warmer as years passes by, boosting the use of air-conditioning units to keep the local workforce productive under hot and humid conditions. However, such conventional cooling systems are known to increase local carbon emissions, hence there was a need to explore an alternative efficient cooling technology. Passive Daytime Radiative Cooling (PDRC) is an emergent field of cooling phenomena that have gained traction in recent years. It involves the use of sunlight reflectance and heat radiation process to encourage cooling effect on the surface. Hence, the theory behind PDRC will be focused on this project, thoroughly examining its functions and theories inclusive of sunlight functions, light scattering techniques, and material structures. Our findings will primarily concentrate on the optical cooling properties of the specimens, involving the use of light scattering and heat localisation techniques to induce efficient passive and radiative cooling effects. Previous research involving the use of hydrogels and fabrication methods are greatly considered for this project. The addition of BaSO4 pigments and coloured dyes are also considered to meet research gap identified in this paper using two experimental methods: Radiative Cooling Test and Water Absorption Test. The above-mentioned experiments will be carried out to determine cooling capabilities, mechanical stability, and suitability of the specimens for outdoor environments.
author2 Hong Li
author_facet Hong Li
Nurhadi Abdul Rahman
format Final Year Project
author Nurhadi Abdul Rahman
author_sort Nurhadi Abdul Rahman
title Passive daytime radiative cooling
title_short Passive daytime radiative cooling
title_full Passive daytime radiative cooling
title_fullStr Passive daytime radiative cooling
title_full_unstemmed Passive daytime radiative cooling
title_sort passive daytime radiative cooling
publisher Nanyang Technological University
publishDate 2021
url https://hdl.handle.net/10356/154108
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