Sensitive Analysis for the Efficiency of a Parabolic Trough Solar Collector Based on Orthogonal Experiment

Table 5

Instantaneous efficiency factors analysis of parabolic trough collector (%).

	Pipe length	Condensation area	Diameter	Solar radiation intensity	Ambient temperature	Flow rate	Inlet temperature
	56.38	58.38	55.38	52.51	57.17	56.25	60.12
	58.05	56.36	58.50	59.49	57.03	59.00	59.93
	57.50	57.19	58.05	59.94	57.74	56.68	51.89
	1.664	2.020	3.120	7.431	0.712	2.745	8.227