常用冷水机组的性能特征和选型案例分析OA

According to the full load and variable condenser inlet temperature coefficient of performance curves of variable frequency screw chillers,constant frequency centrifugal chillers,variable frequency centrifugal chillers,and magnetic levitation centrifugal chillers provided by manufacturers,the energy-saving characteristics of various chillers are analyzed,and their applicable places are put forward.Taking a comprehensive commercial project in Changsha as an example,three commonly used cold source configuration schemes are designed,and the variable frequency screw chiller and magnetic levitation centrifugal chiller are used to adjust part load respectively.According to the comparison schemes of initial investment,operation cost,investment payback period,life cycle operation cost,and carbon emission reduction,the paper proposes optimization suggestions.