Investigation of monthly variations in the efficiencies of photovoltaics due to sunrise and sunset times

The effect of time of day and month on the efficient conversion of solar energy to electrical energy using a polycrystalline (PV) module in calabar was studied. A KT-908 precision digital hygrometer and thermometer, and a M890C+ digital multimeter were used in the process. Results obtained shows tha...

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Main Authors: Njok, Armstrong O. (Author), Ogbulezie, Julie C. (Author), Panjwani, Manoj Kumar (Author), Larik, Raja Masood (Author)
Format: EJournal Article
Published: Institute of Advanced Engineering and Science, 2020-04-01.
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100 1 0 |a Njok, Armstrong O.  |e author 
100 1 0 |e contributor 
700 1 0 |a Ogbulezie, Julie C.  |e author 
700 1 0 |a Panjwani, Manoj Kumar  |e author 
700 1 0 |a Larik, Raja Masood  |e author 
245 0 0 |a Investigation of monthly variations in the efficiencies of photovoltaics due to sunrise and sunset times 
260 |b Institute of Advanced Engineering and Science,   |c 2020-04-01. 
500 |a https://ijeecs.iaescore.com/index.php/IJEECS/article/view/19729 
520 |a The effect of time of day and month on the efficient conversion of solar energy to electrical energy using a polycrystalline (PV) module in calabar was studied. A KT-908 precision digital hygrometer and thermometer, and a M890C+ digital multimeter were used in the process. Results obtained shows that photovoltaic produce different levels of peak efficiencies at different times of the day for different months due to the difference in sunrise and sunset times for the months. The results also indicated that photovoltaics will be more efficient in months with low average relative humidity couple with low panel temperature. A peak efficiency of 77% at 12:30 in the month of April was observed before dropping to 73% at 12:00 in the month of May, indicating that there might be further drop in efficiency as we proceed further into the year. Results also show that photovoltaics are more efficient before noon in the month of May than in April while the reverse will be observed in the afternoon.  
540 |a Copyright (c) 2020 Institute of Advanced Engineering and Science 
540 |a http://creativecommons.org/licenses/by-nc/4.0 
546 |a eng 
690
690 |a Relative humidity, Ambient Temperature, Panel temperature, peak efficiency, Sunrise and sunset times 
655 7 |a info:eu-repo/semantics/article  |2 local 
655 7 |a info:eu-repo/semantics/publishedVersion  |2 local 
655 7 |2 local 
786 0 |n Indonesian Journal of Electrical Engineering and Computer Science; Vol 18, No 1: April 2020; 310-317 
786 0 |n 2502-4760 
786 0 |n 2502-4752 
786 0 |n 10.11591/ijeecs.v18.i1 
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