Rules of thumb for air conditioning design in Hong Kong

Pao Yue-kong Library Electronic Theses Database

Rules of thumb for air conditioning design in Hong Kong


Author: Zhang, Jin
Title: Rules of thumb for air conditioning design in Hong Kong
Degree: M.Eng.
Year: 2009
Subject: Hong Kong Polytechnic University -- Dissertations.
Air conditioning -- China -- Hong Kong -- Design and construction.
Buildings -- Energy conservation -- China -- Hong Kong.
Department: Dept. of Building Services Engineering
Pages: viii, 89 leaves : ill. (some col.) ; 30 cm.
Language: English
InnoPac Record:
Abstract: Over sizing is a very common problem in the air conditioning system design in Hong Kong [3]. One main reason for over sizing problem is that many consulting companies have their own method of cooling load estimation which is actually higher than the real value [3]. Another main reason is that there is no public set of rules of thumb for cooling load in Hong Kong. Two studies[l,3] developed the rules of thumb for commercial and office buildings, but not hotel buildings which greatly contribute to the economic development of Hong Kong and consume a lot of energy. In this study, the effects of lighting power density, small power density, ventilation rate, indoor air temperature setting, window wall ratio, shading coefficient and U-value of ex-wall on the cooling load for the different forms of hotel buildings are analyzed. After identifying four key factors (ventilation, window to wall ratio, shading coefficient and indoor temperature setting) influencing the cooling load, new rules of thumb for cooling load is proposed.

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