Working in collaboration with industry partners, researchers of The Hong Kong Polytechnic University (PolyU) have successfully developed a solar-powered air-conditioning system for vehicles and completed a series of testing on the road.
|System components. Click to enlarge.|
The system is developed by Professor Eric Cheng of PolyU’s Department of Electrical Engineering together with Green Power Industrial Ltd. With the support of Swire Coca-Cola Hong Kong, the system has been installed on the top of a truck for carrying beverages and proved to work on the road. Components of the system include:
- Solar photovoltaic modules;
- Solar control system;
- Air condition control unit;
- Electrical VFD compressor; and
- Blowing cool air and temperature feedback system.
Installed on the roof of the cab, the photovoltaic solar panel collects solar energy for storage in a custom battery system supported by an optimized control system. The power collected will support a stand-alone electric air-conditioner which can be switched on when the vehicle engine is not running. The system can also operate during cloudy or rainy days because solar energy is automatically stored in the battery during sunny weather.
PolyU and its partners will explore further use of this solar energy system in Hong Kong.