2019
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05
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25
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1.IntroductionCentral air-conditioning is one of the indispensable supporting facilities for modern large-scale buildings. According to statistics, the consumption of electric energy accounts for about 50% of the total consumption of buildings. The central air conditioning system is designed to increase the load by 10% to 20% according to the maximum load. Due to seasonal, day and night and user load changes, the actual load is much smaller than the design load, and the full load running time is less than 1%. Although the load of the central air-conditioning main unit can automatically adjust ...