Evaluating group performance of residential air-conditions
Citation
International journal on architectural science, v.3, no.2, 2002, pp. 61-71
Abstract
The provision of split-type air-conditioners in high-rise residential building is very common in Hong Kong. So far the building re-entrant is the most popular place to accommodate the outdoor condensing units. In many cases, the heat dissipation from the outdoor units results in very unfavorable condenser working temperature. Predicting the thermal environment at a re-entrant is difficult because of the continuous changes in user demand and climatic condition. An energy performance indicator known as Condenser Group Performance Indicator (CGPI) is suggested to evaluate the air-conditioner operation. This paper discusses how th CGPI approach simplifies the complex situation by a numerical model using steady state fluid flow and thermal analysis, and makes use of a single parameter to compare different building design and equipment layout schemes. The effect of equipment random operation is also examined in this paper.
(1) Introduction
(2) Energy performance evaluation
(a) EER and COP
(b) Group performance
(c) Numerical computation
(3) Effect of building geometry
(a) Building height
(b) Re-entrant shape
(c) Refuge floor location
(d) Opening at transfer plate
(4) Randomness in equipment operation
(5) Conclusion
(6) Acknowledgement
(7) References
Description
Notes: Air conditioning
Subject
Type
Article
Format
Date
2002
Language
en