Title: Analysis on Energy-saving of Year-round Operation Conditions with Variable Flow Cooling Water System
Abstract: In this paper,energy-saving effects of cooling water system under variable flow conditions were analyzed.Firstly,with the inverter technology,the energy-saving of chiller and cooling water pump during year-round was taken as the optimal target,the influences of different variable speed control strategies on energy consumption of chiller and cooling water pump were analyzed.Secondly,the energy efficiency optimization model for variable flow cooling water system was established.Based on the case study,the operation energy consumption was calculated under different control strategies and different cooling load conditions,and therefore the optimal control strategy was obtained.The results indicated that it was feasible to adopt the variable flow strategy,the corresponding energy-saving effect was significant.In addition,the control strategy of constant temperature difference with the minimum pressure difference was more energy efficient compared to the constant flow control strategy,the year-round energy-saving rate was 6.07%.
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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