A novel PCM cooling system for building applications

In Malaysia, addressing heat stress-related issues and providing sustainable long-term affordable energy is crucial. Malaysia has great potential for solar energy as it is located near the equator, with the estimated potential for solar generation reaching up to 6500 MW. To utilize abundant solar energy resources and alleviate living issues in Malaysia, a novel solar PV power cooling system has been proposed. The system combines a radiant cooling ceiling with a PV-driven vapour-compression system and stores phase change material (PCM) in a water tank. The experimental setup consists of mini-DC refrigeration, a water tank containing PCM material, a circulation pump connected to the chiller unit, and a second pump connected to the radiant ceiling. The system effectively cools the PCM water tank, supplying cold water to the radiant ceiling. This significant temperature difference highlights the potential for energy savings in relation to the ambient temperature. Besides, the field measurement was conducted in Malaysia. The findings carry significant implications for the citizens of Malaysia as it allows for the investigation of the cooling performance of this system in a tropical climate setting, where the need for cooling is particularly acute.