Seasonal coolth storage system for residential buildings in Australia

Lhendup, T., Aye, L. and Fuller, R. J. 2012, Seasonal coolth storage system for residential buildings in Australia, Journal of Central South University, vol. 19, no. 3, pp. 740-747.

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Title Seasonal coolth storage system for residential buildings in Australia
Author(s) Lhendup, T.
Aye, L.
Fuller, R. J.
Journal name Journal of Central South University
Volume number 19
Issue number 3
Start page 740
End page 747
Total pages 8
Publisher Zhongnan Daxue / Central South University
Place of publication Changsha, China
Publication date 2012-03
ISSN 2227-5223
2095-2899
Keyword(s) night sky cooling
borehole
coolth storage
unglazed solar collectors
Summary Night sky cooling is explored as an alternative to the conventional cooling technologies using fossil fuels. The night sky cooling method is based on the long wave radiation of unglazed collectors to the sky at night. An evaluation of the night sky cooling system is present for a residential building in three cities of Australia, namely Alice Springs, Darwin and Melbourne. The system comprises an unglazed flat plate solar collector integrated with borehole storage. It uses night sky radiation to reduce the temperature of the ground near to the boreholes. The system was simulated with TRNSYS, a transient simulation program. The simulation results for adequately sized systems show that night sky radiation is able to reduce the coolth storage borehole temperature and the proposed system is able to meet the cooling load of the residential building simulated in three locations. Borehole lengths of 270, 318 and 106 m are required for coolth storage with 90, 260 and 14 m2 collector area for heat rejection in Alice Springs, Darwin and Melbourne, respectively. At the 20th simulation year, the proposed system is able to achieve a system cooling coefficient of performance of 2.2 in Alice Springs, and 2.8 in Darwin and Melbourne.
Language eng
Field of Research 120399 Design Practice and Management not elsewhere classified
Socio Economic Objective 970112 Expanding Knowledge in Built Environment and Design
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2012, Central South University
Persistent URL http://hdl.handle.net/10536/DRO/DU:30065337

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