Application of exhaust air heat recovery system

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 trade-off 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.