Determination of the Actual Amount of Insolation Absorbed by a Photovoltaic Panel (125w)
Science Journal of Energy Engineering
Volume 6, Issue 1, March 2018, Pages: 27-30
Received: Mar. 2, 2018; Accepted: Mar. 20, 2018; Published: Apr. 14, 2018
Views 1239      Downloads 66
Rex Kemkom Chima Amadi, Department of Mechanical Engineering, Rivers State University, Port Harcourt, Nigeria
Anthony Kpegele Leol, Department of Mechanical Engineering, Rivers State University, Port Harcourt, Nigeria
Article Tools
Follow on us
The determination of the ability of the Photovoltaic cell in absorbing radiation was performed, taking into cognizance the fact that photovoltaic panels have the ability to harness solar energy incident on it in the form of radiation. It utilized the hourly production of open circuit voltage for a 125W module Photovoltaic panel made of silicon material. The solar panel was exposed to the open atmosphere from sunrise to sunset, precisely from 5.00am to 7.00am, with no obstruction from heights, high rise buildings and tall trees including towers. The photovoltaic panel was brought to ambient temperature and results were taken in clear sky weather condition in the neighborhood of ±10 minutes to the hour mark. The voltage output was recorded with the aid of a digital multimeter and a Power model was used to determine the actual amount of radiation available and a plot of voltage V hours and Watt V hour when done, showed the same pattern as that of Adnot, Haurwitz and Alboteani et al. results. The hourly variation of voltage graph when assessed, showed an ascendancy as the hour increased to a maximum of 20.65Volts at mid day and then a decrease to 0 volts at twilight (7.00pm) on the 11th day of November, 2017. The same ascendancy and decrease patterns were also displayed by the hourly variation of absorbed power. Thus, photovoltaic panel output varies with the sun hours like solar radiation varies with the sun hours, when results are obtained are obtained under stated conditions. Hence, results stands validated.
Photovoltaic Plate, Solar Radiation, Sun Hour, Clear Sky Weather, Voltage Output and Power
To cite this article
Rex Kemkom Chima Amadi, Anthony Kpegele Leol, Determination of the Actual Amount of Insolation Absorbed by a Photovoltaic Panel (125w), Science Journal of Energy Engineering. Vol. 6, No. 1, 2018, pp. 27-30. doi: 10.11648/j.sjee.20180601.14
Copyright © 2018 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License ( which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
C. G. Popovici, S. V. Hudisteanu, T. D. Mateescu, & N. C. Cheruchees, (2015). Efficiency improvement of photovoltaic panels by using air cooled heat. Sinks.
I.L.Alboteanu, Bulucea, & C. A., S. Degaralu, (2015). Estimating solar irradiation absorbed by Photovoltaic panels with low concentration located in Craiova, Romania. Sustainability 7 (2071-1050) 2644-2661 doi:10.3390/Su 7032644.
D.O. Akpootu& Y. A. Sanusi, (2015). A new temperature based model for estimating global solar radiation in Port Harcourt, south south Nigeria. IJES 4(1) 63-73 retrieved from
Z. Guo, (2017). Daily variation law of solar radiation flux density incident on the horizontal surface.Academy Science P. R. China.Journal of Earth Science and Climatic change, 8(4)12.DOI:10.4.72/2157-76.7, 10004.2.
O.S. Ohunakin, M.S. Adaramola, O.M. Oyewola& R.O. Fagbenle (2013).Correlations for Estimating Solar Radiation Using Sunshine Hours and Temperature Measurement in Osogbo, Osun State, Nigeria.Front Energy,7(2), 214-222. DOI:10.1007/s11708-013-0241-2
H.R.H. Liang, J.M.Zhang, J.A. Liu, Z.A. Sun, & X.H. Cheng (2012).Estimation of Hourly Solar Radiation at the Surfaceunder Cloudless Conditions on the Tibetan Plateau Using a Simple Radiation Model.Adv.Atmos.Sciences,29(4), 675-689. DOI: 10.1007/s00376-012-1157-1
S.S. Chandel& R.K. Aggarwal (2011).Estimation of Hourly Solar Radiation on Horizontal and Inclined Surfaces in Western Hamalayas.Smart Grid and Renewable Energy Journal 2011 (2), 45-55. Doi:10.4236/sgre.2011.21006
V. Ambas& E. Baltas (2014) Spectral Analysis of Hourly Solar Radiation.Environmental processes, 1(3), 21-263.
R.K.C. Amadi, “The Regenerator as a Photovoltaic Recharger,” unpublished.
T. Khatib& W. Elmenreich (2015).A Model of Hourly Solar Radiation Data Generation from Daily Solar Radiation Data Using a Generalized Regression Artificial Neural Network.International journal of photoenergy, 2015(4), 1-13
Science Publishing Group
1 Rockefeller Plaza,
10th and 11th Floors,
New York, NY 10020
Tel: (001)347-983-5186