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The purpose of this paper is to clarify energy performance of cooling plant system for building air-conditioning using actual measured operating data and numerical simulation analysis. The cooling pla...nt system is installed in an industrial building and has some high-efficient technologies which are high-efficient inverter chiller, integrated cooling tower and free-cooling system for fresh water used in the production area. The high-efficient inverter chiller is one of refrigerating machines with the state-of-the-art technology which has recently been put on the market. The maximum chiller COP reaches about 18 under a condition of the partial load rate and the cooling water temperature. The simulation results show that the cooling plant system can cut down annual electric power consumption about 51% compared with conventional cooling plant system.show more
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