排风热回收系统应用的探讨

摘要

排风热回收系统在工程设计中已被广泛采用,但在应用中往往只关注热回收量和热回收效率,而未能分析采用热回收技术的实际得与失.给出了一个排风热回收系统的判据模型,阐述了权衡计算方法,分析了不同冷热源系统及室外气温对热回收系统的影响.总结了应用排风热回收系统时的一些注意事项.%Exhaust air heat recovery technique has been widely used, but when it comes to practical application, the concerns are limited to the heat recovery amount and heat recovery efficiency, rather than analysing the actual gain and loss. Provides a criterion model about the heat recovery system, gives a tradeoff calculation method, and analyses the impact of different cold and heat sources and outdoor temperature on the heat recovery system. Summaries the matters needing attention in the heat recovery application.