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            暖通空调杂志社>期刊目次>2007年>第4期

            一种螺杆式制冷机组能耗计算模型

            Energy consumption calculation model of screw compressor refrigerating units

            黄建恩,冯伟
            中国矿业大学

            摘要:

            建立了基于能量守恒的螺杆式制冷压缩机模型,通过该模型和冷凝器模型联合求解得出了不同冷却水入口温度下的制冷机组能耗。提出了压缩机部分负荷效率以更好地模拟制冷机组部分负荷工况下的能耗。将该模型应用于某制冷机组,计算结果表明该模型具有较高的精度。

            关键词:螺杆式制冷机组,能耗,计算模型,压缩机

            Abstract:

            Establishes a calculation model for screw compressors based on the energy conservation law. Works out the energy consumed by the unit under different inlet temperature of cooling water through the model associated with a condenser model. Puts forward a concept of the compressor part load efficiency to simulate its part load energy consumption more correctly. Applies the model to such a  unit and obtains more accurate results.

            Keywords:screwcompressorrefrigeratingunit,energyconsumption,calculationmodel,compressor

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