Parametric Study on the Thermal Performance and Optimal Design Elements of Solar Air Heater Enhanced with Jet Impingement on a Corrugated Absorber Plate

Table 1

The assumptions and working conditions of the SAH with a cross-corrugated absorber plate in [36].

Working conditions and assumptions	Value
Solar radiation (I)	800 (W/m^2)
Ambient temperature (TA)	285 (K)
Inlet temperature (Ti)	295 (K)
Air mass flow rate per unit area of the heater (mf)	0.1 (kg/m^2·s)
Width of the heater (W)	1 (m)
Length of the heater (L)	2 (m)
Mean gap between the absorber plate and jet plate (Hg)	0.04 (m)
Mean gap between the absorber plate and cover (Hc)	0.04 (m)
Convection heat transfer from the glass cover due to wind (hw)	11.4 (W/m^2 K)
Thickness insulation (b)	0.05 (m)
Absorptivity of solar radiation of the absorbing plate (αap)	0.95
Transmissivity of solar radiation of the glass cover (τc)	0.84
Solar radiation absorptivity of the glass cover (αc)	0.06
Emissivity of thermal radiation of the absorbing plate (εap)	0.94
Emissivity of thermal radiation of the bottom plate (εbp)	0.94
Thermal radiation emissivity of the glass cover (εc)	0.9
Angle of inclination of the heater (θ)	30°