磁悬浮离心式冷水机组和国家标准
Centrifugal magnetic suspension water chillers and national standards
摘要：
磁悬浮离心式冷水机组已在国内外诸多空调工程中应用，因其性能系数高，大大降低了冷水机组的全年能耗。分析了该类型冷水机组在国内的应用现状，指出作为一种冷水机组产品，应执行现有的相关国家标准，同时应参考国外标准；建议深入理解国内外标准中名义工况下的COP、综合部分负荷性能系数IPLV和非标准工况下综合部分负荷性能系数NPLV，正确评价磁悬浮离心式冷水机组的性能。工程实例计算结果表明，磁悬浮离心式冷水机组与普通离心式冷水机组相比，全年可减少能耗40%左右，其名义工况下的COP达到国家冷水机组1级能效等级，其IPLV超过8.7。认为其独有的特性将改变部分空调系统的传统设计方法，值得深入研究，磁悬浮离心式冷水机组是一种值得大力推广的高效节能产品。
Abstract：
Centrifugal magnetic suspension water chillers have been applied to many air conditioning projects for their high efficiency and greatly reduced annual power consumption. Analyses their application in China, and points out that, as a water chiller product, they should be in line with relevant current national standards and meanwhile refer to foreign standards. Suggests understanding deeply the COP, IPLV and NPLV in Chinese and foreign standards and evaluating correctly the performance of centrifugal magnetic suspension water chillers. Engineering case calculation shows that the annual energy consumption of the chillers can reduce by 40%, compared with common chillers. The COP under the nominal working condition can reach Level 1 in national energy efficiency rating grades. The IPLV can be more than 8.7. The unique features of the chillers will change traditional air conditioning system design. They are worthy of being further studied. Centrifugal magnetic suspension water chillers are high energy efficiency products which are worthy of being spread.
Keywords:centrifugal magnetic suspension water chiller, standard, COP, IPLV, high energy efficiency