Li, Y.W.; Wang, R.Z.; Wu, J.Y.; Xu, Y.X. - In: Energy 32 (2007) 8, pp. 1361-1374
In this study, a direct expansion solar-assisted heat pump water heater (DX-SAHPWH) with rated input power 750W was tested and analyzed. Through experimental research in spring and thermodynamics analysis about the system performance, some suggestions for the system optimization are proposed....