The article analyzes investment condition and operation cost of common central air-conditioning heating and cooling solutions at large scale buildings through economic analysis method. It proves that water cooled screw chiller plant with gas-fired boiler is the best configuration.%运用经济性分析方法对大型建筑的常用的五种中央空调的冷热源方案的投资情况和运行费用进行比较分析,论证水冷螺杆机组加燃气锅炉是经济性最好的配置方案.
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