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http://dx.doi.org/10.17664/ksgee.2013.9.3.011

Transient Performance of a System Heat Pump with the Variation of Compressor Speed and EEV Openings  

Lee, Sang-Hyeok (Department of Railway Vehicle System Engineering, Woosong College)
Choi, Jong Min (Department of Mechanical Engineering, Hanbat National University)
Publication Information
Journal of the Korean Society for Geothermal and Hydrothermal Energy / v.9, no.3, 2013 , pp. 11-18 More about this Journal
Abstract
Small and medium-size buildings employ a multi-distributed individual air-conditioning system utilizing package air conditioners instead of centralized cooling systems, which can allow easier building management and maintenance along with a diversification of facility use. Inverter driven system heat pumps have been developed to achieve not only easy distribution control allowing free combination of indoor units with different models and different capacities, but also wide applications to an intelligent air conditioning. In this study, the transient performance of a system heat pump was analysed with the variation of compressor speed and EEV openings. The superheat was selected as a control parameter of the system, because the variation of it was consistent with each indoor unit capacity.
Keywords
System heat pump; Compressor speed; Superheat; Transient performance;
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