WITHDRAWN: Analysis on high-efficiency chiller plant's characteristics

Abstract

Building's power consumption counts a large ratio of the social total energy cost and chiller plants cost a large amount of power for public buildings. With the globe's carbon neutralization desire becoming more important, high-efficiency chiller plant (HECP) is the first thing for the design and management of building's central air condition system. With this goal in sight, this study analyses the chiller plant's efficiency which is composed by single chiller based on the system's view and presents the relative importance of 8 variables on the chiller plant's efficiency. To simplify the analysis, the concept of pump's head in power is introduced. HECP's constrains on chiller's COP, chilled and cooling water temperature differences and pump's head in power are presented. The energy consumption ratio of HECP's every component is also studied. The theoretical study results were verified by the operation data of one hotel building's chiller plant located in Chongqing municipality. The research results by this paper are significant for the design and operation of HECP and are further beneficial for the global carbon neutralization.