Consider a flat-plate solar collector placed horizontally on the flat roof of a house. The collector is 4.5 m wide and 6

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Consider A Flat Plate Solar Collector Placed Horizontally On The Flat Roof Of A House The Collector Is 4 5 M Wide And 6 1 (19.98 KiB) Viewed 45 times

Consider a flat-plate solar collector placed horizontally on the flat roof of a house. The collector is 4.5 m wide and 6.5 m long, and the average temperature of the exposed surface of the collector is 42∘C. The properties of air at 1 atm and the film temperature are k=0.02551 W/m∘C,v=1.562×10−5 m2/s,Pr= 0.7286, and β=0.003356K−1 Determine the rate of heat loss from the collector by natural convection during a calm day when the ambient air temperature is 8∘C. The rate of heat loss from the collector by natural convection is W.