Effect of Parametric Uncertainties, Variations, and Tolerances on Thermohydraulic Performance of Flat Plate Solar Air Heater

Table 3

Effect of change of solar insolation on thermal and effective efficiencies ( = 2 m, = 10 mm, and = 1 m).

(kgs^−1m^−2)	Baseline value		Winter ( = 285 K, = 12 Wm^−2K^−1, = 40°)			Summer ( = 310 K, = 15 Wm^−2K^−1, = 0°)
			(Wm^−2)	(%)	(%)	(Wm^−2)	(%)	(%)
0.01	800	0.95	500; 1000	0.7; −1.04	0.63; −1.03	500; 1000	1.64; −1.31	1.64; −1.25
0.06	800	0.95	500; 1000	−1.69; 0.48	−8.1; 2.4	500; 1000	−0.74; 0.14	−8.43; 2.46
0.01	800	0.1	500; 1000	0.98; −0.68	0.94; −0.64	500; 1000	1.88; −0.99	1.8; −0.98
0.06	800	0.1	500; 1000	−0.67; 0.14	−6.27; 1.87	500; 1000	−0.06; 0.01	−6.77; 1.42