Experimental study and thermo-economic analysis of a novel radiant-convective cooling system

• A novel radiant-convective cooling system is proposed. The thermal comfort, energy and economic performance are experimentally studied. proposed has better indoor comfort than split air-conditioners. higher efficiency ratio Split air-conditioners have limitations in terms of local comfortability. Radiant systems (RCSs) cannot be used most residential buildings, due to its lack space for a central plant room achieve secondary heat exchange. To overcome these defects, with the refrigerant-cooling radiant terminal (RCRT) was proposed, which took advantages both RCSs. Experiments were conducted climate chamber investigate performance, system, comparison results indicated that RCRT could improve set temperature from 26°C 28°C, under same as Additionally, had air-conditioners, saving potential this 8.4%. initial cost however, life cycle lower. payback period using replace 2.4 years, indicating adopting more economical.