Energy Saving Effect of Novel Desiccant Air Conditioner for Zero Emission House

The model of zero emission house [ZEH] made full use of leading-edge energy saving and new energy technology of Japan was exhibited at G8 Hokkaido Touyako Summit held on July 2008. Introduction in Japan is set as the goal of starting popularization of ZEH from 2015, change all newly-built houses to ZEH by 2030 and change all houses including existing house to ZEH by 2050. We have developed new style desiccant air conditioner which can supply dry cool air in summer and warm humidified air in winter by using heated water of solar heat or CGS. In this paper, we publish the energy saving efficiency of the incorporation of this desiccant air conditioner into ZEH and case example of exergy analysis compared with heat pump systems in summer extremely hot day.