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categoryالطاقة المتجددة schoolبكالوريوس event_available2026-07-13

السؤال

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The solar energy absorbed by a solar collector S and the ambient temperatures are given in the table below. The collector has UL - 5.2 W/m²C and FR 0.92. Determine the useful output of the collector for the day in question if the inlet temperature is constant at 35 C. Hour S, MJ/m² Ta. C Hour S, MJ/m² Ta. C 7-8 0.01 -3 12-1 3.42 9 8-9 0.40 0 1-2 3.21 11 9-10 1.90 2-3 1.54 5 10-11 2.85 5 3-4 1.07 1 11-12 3.02 7 4-5 0.52

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