Design, construction and calibration of an instrument for measuring the production of chilled water by the combined effects of evaporation and night sky radiation

Al-Zubaydi, AYT; Dartnall, J; Dowd, A

Design, construction and calibration of an instrument for measuring the production of chilled water by the combined effects of evaporation and night sky radiation

Al-Zubaydi, AYT

Dartnall, J Dowd, A

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Publication Type:: Conference Proceeding
Citation:: ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE), 2012, 7 (PARTS A, B, C, D), pp. 1523 - 1532
Issue Date:: 2012-12-01

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Field	Value	Language
dc.contributor.author	Al-Zubaydi, AYT https://orcid.org/0000-0001-9983-191X	en_US
dc.contributor.author	Dartnall, J	en_US
dc.contributor.author	Dowd, A https://orcid.org/0000-0002-0500-3599	en_US
dc.date.issued	2012-12-01	en_US
dc.identifier.citation	ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE), 2012, 7 (PARTS A, B, C, D), pp. 1523 - 1532	en_US
dc.identifier.isbn	9780791845233	en_US
dc.identifier.uri	http://hdl.handle.net/10453/121142
dc.description.abstract	This paper presents the design and mathematical modeling of thermal radiator panels to be used primarily to measure night sky radiation from dry and wet coated surfaces. Three panels may be used in conjunction as a combined measuring system. One panel consists of an upper dry surface coated aluminum sheet laminated to an ethylene vinyl acetate foam backing block having a pattern of parallel flow water channels and header channels milled into its mating surface prior to lamination to the aluminum sheet. This configuration provides a fin and channel radiator instrument whereby circulating water may be used to measure the heat loss from this panel to night sky radiation. In a second configuration, the surface of a panel without buried water channels but otherwise identical may be wetted in order to study and compare the night sky radiation from its wet surface. In this case, the measuring water is circulated over the upper face of this panel. In a third configuration, water is sprayed onto the surface of the second panel (or a similar panel) so that an evaporative cooling effect is gained in addition to the radiation effect. Initial TRNSYS simulations for the performance of all three configurations are presented and it is planned to use the panels as calibrated instruments for discriminating between the cooling effects of night sky radiation and evaporation. Copyright © 2012 by ASME.	en_US
dc.relation.ispartof	ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)	en_US
dc.relation.isbasedon	10.1115/IMECE2012-85645	en_US
dc.title	Design, construction and calibration of an instrument for measuring the production of chilled water by the combined effects of evaporation and night sky radiation	en_US
dc.type	Conference Proceeding
utslib.citation.volume	PARTS A, B, C, D	en_US
utslib.citation.volume	7	en_US
utslib.for	0205 Optical Physics	en_US
utslib.for	0912 Materials Engineering	en_US
utslib.for	0204 Condensed Matter Physics	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
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
utslib.copyright.status	closed_access
pubs.issue	PARTS A, B, C, D	en_US
pubs.publication-status	Published	en_US
pubs.volume	7	en_US

Abstract:

This paper presents the design and mathematical modeling of thermal radiator panels to be used primarily to measure night sky radiation from dry and wet coated surfaces. Three panels may be used in conjunction as a combined measuring system. One panel consists of an upper dry surface coated aluminum sheet laminated to an ethylene vinyl acetate foam backing block having a pattern of parallel flow water channels and header channels milled into its mating surface prior to lamination to the aluminum sheet. This configuration provides a fin and channel radiator instrument whereby circulating water may be used to measure the heat loss from this panel to night sky radiation. In a second configuration, the surface of a panel without buried water channels but otherwise identical may be wetted in order to study and compare the night sky radiation from its wet surface. In this case, the measuring water is circulated over the upper face of this panel. In a third configuration, water is sprayed onto the surface of the second panel (or a similar panel) so that an evaporative cooling effect is gained in addition to the radiation effect. Initial TRNSYS simulations for the performance of all three configurations are presented and it is planned to use the panels as calibrated instruments for discriminating between the cooling effects of night sky radiation and evaporation. Copyright © 2012 by ASME.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/121142