Performance Modelling of Dual Air/Water Collector in Solar Water and Space Heating Application

Table 1

Main parameters of the dual air/water solar collector.

Collector parameter	Value	Collector parameter	Value
Dimensions (W/L/H)		Absorber emissivity	0.05
Area (gross, aperture, absorber)	1.6 m^2, 1.52 m^2, 1.49 m^2	Header pipe	Cu
Cover material	Solar glass 4 mm	Number of riser tubes	10
Front air gap thickness	30 mm	Distance between riser pipes	100 mm
Absorber material	Aluminium 0.4 mm	Air flow channel	10 mm
Cover transmittance	0.92	Back insulation thickness	40mm
Absorber absorptance	0.95	Insulation material	Rockwool