Desoribes several energy saving teohnologies for cooling and heating sources of building air conditioning, such as total energy system (TES), heat pump teohnolosy, thermal storage system and district heating a cool ins (DHC).

• 着重介绍了国际上建筑空调冷热源的节能技术，如总能系统、热泵技术、蓄热技术和区域供热供冷。