Abstract
As the solar thermal system with the floor heating and the hot-water supply system needs low temperature of 40-50 degree Celsius, the effectiveness of solar collector is high. But, it is the problem that the surplus heat energy is generated in summer, as solar heat source usually persists throughout the summer period. Appropriately utilizing this surplus heat energy for the desiccant cooling system which requires high temperature of about 70 degree Celsius for regeneration of desiccant wheel, leads to efficient solar thermal system for annual use. Therefore, the solar thermal system consists of desiccant cooling system and floor heating system with hot-water collector and a closed storage tank was developed. In this paper, we reported the field measurement in winter and numerical simulation for the annual performance evaluation of the developed solar thermal system.