Against such problems as low photovoltaic efficiency of photovoltaic cells

underutilized sunlight and light concentrating of photovoltaic cells during power generation

Xi'an Jiaotong University has designed and built a concentrating photovoltaic/thermal(PV/T)utilization system

which adopts compound parabolic concentrator for light concentrating

low cost dimensional tracking system for tracking the sun

double fluid channels for photovoltaic cells' endothermic and heat dissipation and working water for taking the heat generated by infrared light and waste heat generated by the cells.By adjusting the water intake flows

this system coordinates electrical and thermal efficiency

and thus to achieve efficient utilization of sunlight cogeneration effect.On this basis

the evaluation system was established and the system performance was numerically studied.