Question

Use Klein’s empirical ""top-loss"" eqn. in terms of N and f to estimate the heat loss coefficient of a flat plate collector having the following parametric design values: a. Collector area = 2 m^2 b. Collector slope = 35 degrees c. Number of glass covers = 2 d. Thickness of each glass cover = 4 mm e. Thickness of absorber plate = 0.5 mm 3 f. Spacing between glass covers = 20 mm g. Space between inner glass cover and absorber = 40 mm h. Thickness of back insulation = 50 mm i. Back insulation thermal conductivity = 0.05 W/m-K j. Mean absorber temperature = 353 K k. Ambient air temperature = 288 K l. Absorber plate =0.10 m. Glass =0.88 n. Wind speed = 2.5 m/s

Answer 1

Explanation:

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