技术中心

一种螺杆式制冷机组能耗计算模型【英文篇名】 Energy consumption calculation model of screw compressor refrigerating units 【作者中文名】 黄建恩; 冯伟; 【作者英文名】 Huang Jian’en and Feng WeiChina University of Mining and Technology; Xuzhou; Jiangsu Province; China; 【作者单位】 中国矿业大学; 【文献出处】 暖通空调, Heating Ventilating 能耗; 计算模型; 压缩机; 【英文关键词】 screw compressor refrigerating unit; energy consumption; calculation model; compressor; 【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。 【英文摘要】 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.