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Energy and exergy analysis of the PVT system: Effect of nanofluid flow rate

Solar energy is one of the promising resources to fulfil the energy demands to some level in place of fossil fuels to avoid environmental pollution. The efficiency of solar technology, e.g. photovoltaic panels, thermal systems or a combination of both technologies as photovoltaic thermal is a concer...

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Main Authors:	Fayaz, Hussain, Nasrin, Rehena, Rahim, Nasrudin Abd, Hasanuzzaman, Md.
Format:	Article
Published:	Elsevier 2018
Subjects:	QA Mathematics TJ Mechanical engineering and machinery TK Electrical engineering. Electronics Nuclear engineering
Online Access:	http://eprints.um.edu.my/22084/ https://doi.org/10.1016/j.solener.2018.05.004
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spelling	my.um.eprints.220842019-08-27T01:50:19Z http://eprints.um.edu.my/22084/ Energy and exergy analysis of the PVT system: Effect of nanofluid flow rate Fayaz, Hussain Nasrin, Rehena Rahim, Nasrudin Abd Hasanuzzaman, Md. QA Mathematics TJ Mechanical engineering and machinery TK Electrical engineering. Electronics Nuclear engineering Solar energy is one of the promising resources to fulfil the energy demands to some level in place of fossil fuels to avoid environmental pollution. The efficiency of solar technology, e.g. photovoltaic panels, thermal systems or a combination of both technologies as photovoltaic thermal is a concern to increase at an optimum level. A three-dimensional numerical analysis of PVT systems using water and MWCNT-water nanofluid has been completed with FEM based software COMSOL Multiphysics®. A numerical investigation has been validated by the indoor experimental research at different mass flow rates of 30 to 120 L/h while keeping solar irradiation fixed at 1000 W/m2, inlet fluid and ambient temperature at 32 and 25 °C, respectively. Percent improvement of electrical efficiency of PV with nanofluid cooling at flow rate 120 L/h is obtained about 10.72 and 12.25% of numerical and experimental cases respectively. Optimization of the nanofluid for weight concentration is achieved at 0.75% MWCNT-water. Solar cell temperature reduces about 0.72 °C experimentally and 0.77 °C numerically per 10 L/h flow rate increment. Approximately 7.74 and 6.89 W thermal energy is enhanced per 10 L/h flow rate increment in numerical and experimental studies respectively. Percentage increment of thermal efficiency is found as 5.62% numerically and 5.13% experimentally for PVT system operated by water/MWCNT nanofluid with compared to water. Elsevier 2018 Article PeerReviewed Fayaz, Hussain and Nasrin, Rehena and Rahim, Nasrudin Abd and Hasanuzzaman, Md. (2018) Energy and exergy analysis of the PVT system: Effect of nanofluid flow rate. Solar Energy, 169. pp. 217-230. ISSN 0038-092X https://doi.org/10.1016/j.solener.2018.05.004 doi:10.1016/j.solener.2018.05.004
institution	Universiti Malaya
building	UM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaya
content_source	UM Research Repository
url_provider	http://eprints.um.edu.my/
topic	QA Mathematics TJ Mechanical engineering and machinery TK Electrical engineering. Electronics Nuclear engineering
spellingShingle	QA Mathematics TJ Mechanical engineering and machinery TK Electrical engineering. Electronics Nuclear engineering Fayaz, Hussain Nasrin, Rehena Rahim, Nasrudin Abd Hasanuzzaman, Md. Energy and exergy analysis of the PVT system: Effect of nanofluid flow rate
description	Solar energy is one of the promising resources to fulfil the energy demands to some level in place of fossil fuels to avoid environmental pollution. The efficiency of solar technology, e.g. photovoltaic panels, thermal systems or a combination of both technologies as photovoltaic thermal is a concern to increase at an optimum level. A three-dimensional numerical analysis of PVT systems using water and MWCNT-water nanofluid has been completed with FEM based software COMSOL Multiphysics®. A numerical investigation has been validated by the indoor experimental research at different mass flow rates of 30 to 120 L/h while keeping solar irradiation fixed at 1000 W/m2, inlet fluid and ambient temperature at 32 and 25 °C, respectively. Percent improvement of electrical efficiency of PV with nanofluid cooling at flow rate 120 L/h is obtained about 10.72 and 12.25% of numerical and experimental cases respectively. Optimization of the nanofluid for weight concentration is achieved at 0.75% MWCNT-water. Solar cell temperature reduces about 0.72 °C experimentally and 0.77 °C numerically per 10 L/h flow rate increment. Approximately 7.74 and 6.89 W thermal energy is enhanced per 10 L/h flow rate increment in numerical and experimental studies respectively. Percentage increment of thermal efficiency is found as 5.62% numerically and 5.13% experimentally for PVT system operated by water/MWCNT nanofluid with compared to water.
format	Article
author	Fayaz, Hussain Nasrin, Rehena Rahim, Nasrudin Abd Hasanuzzaman, Md.
author_facet	Fayaz, Hussain Nasrin, Rehena Rahim, Nasrudin Abd Hasanuzzaman, Md.
author_sort	Fayaz, Hussain
title	Energy and exergy analysis of the PVT system: Effect of nanofluid flow rate
title_short	Energy and exergy analysis of the PVT system: Effect of nanofluid flow rate
title_full	Energy and exergy analysis of the PVT system: Effect of nanofluid flow rate
title_fullStr	Energy and exergy analysis of the PVT system: Effect of nanofluid flow rate
title_full_unstemmed	Energy and exergy analysis of the PVT system: Effect of nanofluid flow rate
title_sort	energy and exergy analysis of the pvt system: effect of nanofluid flow rate
publisher	Elsevier
publishDate	2018
url	http://eprints.um.edu.my/22084/ https://doi.org/10.1016/j.solener.2018.05.004
_version_	1643691747759357952
score	13.211869

Energy and exergy analysis of the PVT system: Effect of nanofluid flow rate

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