In June 2024
Answer to Question #315485 in Mechanical Engineering for LUBABALO
The absorber surface of a solar collector is made of aluminum coated with black nickel oxide (α1 = 0.92 and ε = 0.08). The collector is to be installed in Stellenbosch (South Africa). The air and the effective sky temperatures are 20 and 7°C, respectively, and the convection heat transfer coefficient is 15 W/m2·K. For an absorber surface temperature of 60°C, determine the net rate of solar energy delivered by the absorber plate to the water circulating behind it.
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