Design of a mobile probe to predict convection heat transfer on building integrated photovoltaic (BIPV) at University of Technology Sydney (UTS)

Madadnia, J

Design of a mobile probe to predict convection heat transfer on building integrated photovoltaic (BIPV) at University of Technology Sydney (UTS)

Madadnia, J

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Publication Type:: Conference Proceeding
Citation:: ASME 2015 9th International Conference on Energy Sustainability, ES 2015, collocated with the ASME 2015 Power Conference, the ASME 2015 13th International Conference on Fuel Cell Science, Engineering and Technology, and the ASME 2015 Nuclear Forum, 2015, 2
Issue Date:: 2015-01-01

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Field	Value	Language
dc.contributor.author	Madadnia, J	en_US
dc.date.available	2015-04-02	en_US
dc.date.issued	2015-01-01	en_US
dc.identifier.citation	ASME 2015 9th International Conference on Energy Sustainability, ES 2015, collocated with the ASME 2015 Power Conference, the ASME 2015 13th International Conference on Fuel Cell Science, Engineering and Technology, and the ASME 2015 Nuclear Forum, 2015, 2	en_US
dc.identifier.isbn	9780791856857	en_US
dc.identifier.uri	http://hdl.handle.net/10453/40949
dc.description.abstract	Copyright © 2015 by ASME. In the absence of a simple technique to predict convection heat transfer on building integrated photovoltaic (BIPV) surfaces, a mobile probe with two thermocouples was designed. Thermal boundary layers on vertical flat surfaces of a photovoltaic (PV) and a metallic plate were traversed. The plate consisted of twelve heaters where heat flux and surface temperature were controlled and measured. Uniform heat flux condition was developed on the heaters to closely simulate non-uniform temperature distribution on vertical PV modules. The two thermocouples on the probe measured local air temperature and contact temperature with the wall surface. Experimental results were presented in the forms of local Nusselt numbers versus Rayleigh numbers "Nu=a ∗ (Ra)b", and surface temperature versus dimensionless height [Ts -T∞ = c∗(z/h)d]. The constant values for "a", "b", "c" and "d" were determined from the best curve-fitting to the power-law relation. The convection heat transfer predictions from the empirical correlations were found to be in consistent with those predictions made by a number of correlations published in the open literature. A simple technique is then proposed to employ two experimental data from the probe to refine empirical correlations as the operational conditions change. A flexible technique to update correlations is of prime significance requirement in thermal design and operation of BIPV modules. The work is in progress to further extend the correlation to predict the combined radiation and convection on inclined PVs and channels.	en_US
dc.relation.ispartof	ASME 2015 9th International Conference on Energy Sustainability, ES 2015, collocated with the ASME 2015 Power Conference, the ASME 2015 13th International Conference on Fuel Cell Science, Engineering and Technology, and the ASME 2015 Nuclear Forum	en_US
dc.relation.isbasedon	10.1115/ES2015-49764	en_US
dc.title	Design of a mobile probe to predict convection heat transfer on building integrated photovoltaic (BIPV) at University of Technology Sydney (UTS)	en_US
dc.type	Conference Proceeding
utslib.citation.volume	2	en_US
utslib.for	091508 Turbulent Flows	en_US
utslib.for	100704 Nanoelectromechanical Systems	en_US
utslib.for	091505 Heat and Mass Transfer Operations	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Mechanical and Mechatronic Engineering
utslib.copyright.status	closed_access
pubs.publication-status	Published	en_US
pubs.volume	2	en_US

Abstract:

Copyright © 2015 by ASME. In the absence of a simple technique to predict convection heat transfer on building integrated photovoltaic (BIPV) surfaces, a mobile probe with two thermocouples was designed. Thermal boundary layers on vertical flat surfaces of a photovoltaic (PV) and a metallic plate were traversed. The plate consisted of twelve heaters where heat flux and surface temperature were controlled and measured. Uniform heat flux condition was developed on the heaters to closely simulate non-uniform temperature distribution on vertical PV modules. The two thermocouples on the probe measured local air temperature and contact temperature with the wall surface. Experimental results were presented in the forms of local Nusselt numbers versus Rayleigh numbers "Nu=a ∗ (Ra)b", and surface temperature versus dimensionless height [Ts -T∞ = c∗(z/h)d]. The constant values for "a", "b", "c" and "d" were determined from the best curve-fitting to the power-law relation. The convection heat transfer predictions from the empirical correlations were found to be in consistent with those predictions made by a number of correlations published in the open literature. A simple technique is then proposed to employ two experimental data from the probe to refine empirical correlations as the operational conditions change. A flexible technique to update correlations is of prime significance requirement in thermal design and operation of BIPV modules. The work is in progress to further extend the correlation to predict the combined radiation and convection on inclined PVs and channels.

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http://hdl.handle.net/10453/40949