Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/27035
Title: Influence of a depth of a recessed space to flow due to air-conditioner heat rejection
Authors: Bojic, M
Lee, M
Yik, F
Keywords: Air-conditioners
Heat rejection
High-rise residential buildings
Recessed spaces
Temperature rise
Issue Date: 2002
Publisher: Elsevier
Source: Energy and buildings, 2002, v. 34, no. 1, p. 33-43 How to cite?
Journal: Energy and buildings 
Abstract: During summer, a large number of air-conditioners at the same time could be rejecting condenser heat into a recessed space formed by the external walls outside many high-rise residential buildings in Hong Kong. Prediction of the temperature and flow field of a powerful rising hot air stream formed in a 30-story high recessed space is performed by using FLUENT 5.0, a computational fluid dynamics (CFD) code. For a 30-story high recessed space of "I" type with four window-type air-conditioner units per story, this paper describes the findings for two depths of the recessed space. For the buoyant air stream, the results show that the mass-flow rate and temperature inside the recessed space are not significantly influenced by the recessed space depth. For air streams used by the condenser units, deeper recessed space yields an increase in the enthalpy in the air stream used by the outer units, and a decrease in the enthalpy in the air stream used by the inner units, which draw the hottest air from the recessed space.
URI: http://hdl.handle.net/10397/27035
ISSN: 0378-7788
EISSN: 1872-6178
DOI: 10.1016/S0378-7788(01)00078-0
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

18
Last Week
0
Last month
0
Citations as of Nov 8, 2018

WEB OF SCIENCETM
Citations

16
Last Week
0
Last month
0
Citations as of Nov 14, 2018

Page view(s)

55
Last Week
2
Last month
Citations as of Nov 12, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.