Variation in Direct Solar Trradiation with Relative Humidity and Atmospheric Temperature
Aref Wazwaz 1  
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Chemical Engineering Department, College of Engineering, Dhofar University, P.O. Box 2509, 211 Salalah, Oman
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Aref Wazwaz   

Chemical Engineering Department, College of Engineering, Dhofar University, P.O. Box 2509, 211 Salalah, Oman
Publish date: 2019-10-01
 
J. Ecol. Eng. 2019; 20(9):38–43
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ABSTRACT
A class first Pyranometer is used to measure the direct solar irradiation and the results were analyzed. Separate sensors used to measure the relative humidity and the atmospheric temperature (RH/AT sensors). The measurements made for the whole year of 2013. We analyzed the collected solar data during one day, month, and year. The maximum, minimum, average, and accumulative solar irradiation (SR) are calculated and analyzed with the connection to relative humidity and atmospheric temperature. We found that April gave the average maximum solar irradiation (SR= 1112±1W/m2), May gave the maximum SR accumulation (13276552± 1W/m2). The maximum average percentage relative humidity found in July (% RH = 97± 3%), while the minimum average % RH is in December (% RH = 25± 3%). In the month of May, the maximum average atmospheric temperature is 36.0 ± 0.6oC, while the average minimum is in January (AT= 19.1 ± 0.6oC). The total accumulation of solar flux during the year 2013 is 222 ± 1MW/m2.