A flat-plate solar collector is used to heat water by having water flow through tubes attached at the back of the thin solar absorber plate. The absorber plate has an emissivity and an absorptivity of 0.9. The top surface (x = 0) temperature of the absorber is To = 35°C, and solar radiation is Incident on the absorber at 600 W/m2 with a surrounding temperature of 0°C. Convection heat transfer coefficient at the absorber surface is 5 W/m2.K, while the ambient temperature is 25°C. qolah... 8, a. To Absorber plate

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Chapter7: Forced Convection Inside Tubes And Ducts
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A flat-plate solar collector is used to heat water by having water flow through tubes attached at
the back of the thin solar absorber plate. The absorber plate has an emissivity and an absorptivity
of 0.9. The top surface (x = 0) temperature of the absorber is To = 35°C, and solar radiation is
incident on the absorber at 600 W/m² with a surrounding temperature of 0°C. Convection heat
transfer coefficient at the absorber surface is 5 W/m².K, while the ambient temperature is 25°C.
✓ à solar h. To
E, α. Too
I
XV
-Absorber plate
Water tubes
Insulation
The Stefan-Boltzmann constant is 5.67 × 10-8 W/m2.K4
Determine the net heat flux 90 absorbed by the solar collector (in W/m²).
The net heat flux 9⁰ absorbed by the solar collector is =
224 W/m2
Transcribed Image Text:A flat-plate solar collector is used to heat water by having water flow through tubes attached at the back of the thin solar absorber plate. The absorber plate has an emissivity and an absorptivity of 0.9. The top surface (x = 0) temperature of the absorber is To = 35°C, and solar radiation is incident on the absorber at 600 W/m² with a surrounding temperature of 0°C. Convection heat transfer coefficient at the absorber surface is 5 W/m².K, while the ambient temperature is 25°C. ✓ à solar h. To E, α. Too I XV -Absorber plate Water tubes Insulation The Stefan-Boltzmann constant is 5.67 × 10-8 W/m2.K4 Determine the net heat flux 90 absorbed by the solar collector (in W/m²). The net heat flux 9⁰ absorbed by the solar collector is = 224 W/m2
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