Quiz # 2 Name: 1) On average, how much solar radiation is intercepted i dim Tuid

Question

Quiz # 2 Name: 1) On average, how much solar radiation is intercepted i dim Tuid: n Alaska by four flat plate collectors (with ensions 1 m × 1.5 m) that are tilted at an angle equal to the latitude in the month of January as compared to that in June? we note that in Alaska, based on a particular location in January, from 0 to 2 KWh/m'/day of solar radiation could strike a surface that is tilted at an angle of the given latitude; the value in June could vary from 4 to 6 kWh/m'/day. Note: the conversion factor 1 kWh 3,412 Btu to convert the result into Btu units. Pavel Vakhrushe/Shutterstock.com

Explanation / Answer

Solar radiation intercepted in January = 4*1*31*1*1.5

= 186 kWh

= 186*3412 =634632 Btu

Solar radiation intercepted in June=4*5*30*1*1.5 =900kWh = 3070800 Btu

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