On the basis of the working principle of HAAS and the concept of endoreversible three heat source cycle , the relations between external heat sources and thermodynamic system and the heat balances of working processes are analyzed . A three heat source model for HAAS is established in the paper .

基于回热型吸附空调系统工作原理和内可逆三热源循环概念，文中分析了该系统中热力系与外界相互作用和热力系各工作过程的热平衡，建立了该系统的三热源模型。