最近,西德纽伦堡市郊一位工程师邓茨勒研究了一种空气循环系统,这种系统把普通供暖方法的优点同现代空调技术的优点结合起来。该系统与普通的燃油供暖系统比较,大约可节省三分之二的能源。这种系统的结构是:在外墙内侧前砌一个厚绝热层,绝热层中间有一狭窄间隙层(图1)。由安装在地下室的通风机使空气在这间隙层内循环。从通风机出来的空气,经通风竖筒(风道)再回到地下室的热泵。气流在循环过程中,吸收室内向外扩散的热量,把它带给热泵。同样,由供暖中心送来 Recently, Duntzler, an engineer in the suburbs of West Nuremberg, studied an air circulation system that combines the advantages of conventional heating methods with the advantages of modern air conditioning technology. The system can save about two-thirds of the energy compared with ordinary fuel heating systems. The structure of this system is to build a thick thermal insulation layer on the inner side of the outer wall and a narrow gap layer in the middle of the thermal insulation layer (Figure 1). Air is circulated in this gap layer by a ventilator installed in the basement. The air coming out of the ventilator is returned to the heat pump in the basement via the ventilation shaft (duct). In the process of circulation, the air flow absorbs the heat that spreads out of the room and brings it to the heat pump. Similarly, sent from the heating center