Research Article

Analysis of a Hybrid PV/Thermal Solar-Assisted Heat Pump System for Sports Center Water Heating Application

Table 1

Key parameters of the PVT collector unit.

Front glazing
 Thickness of glass0.004 m
 Emissivity of glass0.9
 Thermal capacity840 kJ/(kg·K)
 Density2500 kg/m3
 Depth of air gap underneath0.02 mm
PV cell
 Length of the PV cell0.156 m
 Width of the PV cell0.156 m
 Thickness0.0002 m
 Thermal conductivity148 W/(m·K)
 Emissivity0.91
 Absorptivity0.93
 Reference electrical efficiency of the sc-Si module14%
 Packing factor0.79
Thermal absorber
 Length of the module1.350 m
 Width of the module0.73 m
 Thermal capacity910 kJ/(kg·K)
 Density2700 kg/m3
 Absorptivity0.94
 Number of tubes16
 Thickness of insulation layer0.05 m
 Insulation thermal conductivity0.04 W/(m·K)