技术中心

半封闭活塞式和螺杆式冷水机组性能分析 【英文篇名】 Performance analysis of semi-hermetic reciprocal type and screw type chillers 【作者中文名】 张华俊; 王俊; 张伟; 【作者英文名】 By Zhang HuajunXi'an Jiaotong University; China; Wang Jun and Zhang Wei; 【作者单位】 西安交通大学; 西北民航设计院; 【文献出处】 暖通空调, Hv 螺杆式; 活塞式; 半封闭式; 性能比较; R22; 【英文关键词】 chiller; screw type; reciprocal type; semi hermetic; performance comparison; R22 ; 【摘要】 以两种产品为例 ,归纳了半封闭螺杆式和活塞式冷水机组的特点 ,分析了在不同冷水出水温度及不同制冷量情况下两种机组的性能 ,认为它们的制冷量、输入功率及COP值的变化趋势相近 ,但螺杆式冷水机组的COP值较活塞式的约高 0 .5。 【英文摘要】 Takes two kinds of chillers as exemples, sums up the characteristics for semi hermetic reciprocal type and semi hermetic screw type units. Analyses the performances of units at variable temperatures and at variable refrigerating capacities. Considers that the variety of refrigerating capacity, input power and COP are similar, but the COP for screw type units is higher than that of reciprocal type units by 0.5.