Summary of different forms of air-to-air heat exchanger and a new type of exhaust heat recovery system

With the increasing waste of energy and the reduction of energy become serious. It is necessary to take effective measures to save energy. Exhaust heat recovery technology is an effective way to reduce energy consumption in air conditioning. It introduced the different forms of exhaust heat recovery, such as rotary wheel heat and mass exchanger, plate type heat exchanger, run around heat exchanger and heat pipe heat exchanger in this paper, which finally proposed a new system of exhaust air heat recovery called window type heat recovery system.