Experimental performance analysis of an improved receiver for Scheffler solar concentrator

摘要: This study presents the experimental analysis of convex receiver for a Scheffler solar concentrator. The with three different arrangements was tested steam generation. Thermal performance is determined by energy analysis. An first arrangement revealed approximately 42% heat losses from bare receiver. Then convective loss mitigated providing cavity on However, no significant improvement in thermal efficiency observed. Further, tube coil fixed cavity’s inner wall and water circulated through to harvest maximum energy. average intensity beam radiation 638 W/m2 during experimentation time 9:00 15:00 h. stagnation test result estimated that 109 W/m2 K overall coefficient receiver’s first, second, third obtained be 57.71%, 60.93%, 68.03%, respectively, under same operating conditions. In all arrangements, has been found attractive enhancing parabolic dish concentrator’s efficiency.