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www.T-Science.org       p-ISSN 2308-4944 (print)       e-ISSN 2409-0085 (online)
SOI: 1.1/TAS         DOI: 10.15863/TAS

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ISJ Theoretical & Applied Science 04(48) 2017

ISPC Industry and technology, Philadelphia, USA

* Scientific Article * Impact Factor 6.630


Ajenikoko GA, Salami OA

DEVELOPMENT OF A GENERALIZED TWO-PARAMETER TEMPERATURE BASED LINEAR MODEL FOR ASSESSMENT OF SOLAR IRRADIANCE ON NIGERIAN GEO-POLITICAL ZONES.

Full Article: PDF

Scientific Object Identifier: http://s-o-i.org/1.1/TAS-04-48-7

DOI: https://dx.doi.org/10.15863/TAS.2017.04.48.7

Language: English

Citation: Ajenikoko GA, Salami OA (2017) DEVELOPMENT OF A GENERALIZED TWO-PARAMETER TEMPERATURE BASED LINEAR MODEL FOR ASSESSMENT OF SOLAR IRRADIANCE ON NIGERIAN GEO-POLITICAL ZONES. ISJ Theoretical & Applied Science, 04 (48): 36-48. Soi: http://s-o-i.org/1.1/TAS-04-48-7 Doi: https://dx.doi.org/10.15863/TAS.2017.04.48.7

Pages: 36-48

Published: 30.04.2017

Abstract: The output of light energy from the entire core of the sun measured at the earth is called the solar irradiance. The epileptic nature of power supply has made it a challenge to provide sufficient power and energy to the growing population. This paper develops a generalized two-parameter temperature based linear model for assessment of solar irradiance on Nigerian geo-political zones. The minimum and maximum monthly mean daily ambient temperature as well as the monthly mean daily global solar radiation from natural were collected and analysed over a twenty year period for seven selected locations on Nigerian geo-political zones. Appropriate mathematical notations were used to perform a stochastic analysis on the collected data to develop a generalized model. The performance evaluation of the generalized model was done by computing the t-value in terms of the mean-bias error (MBE) and the root mean square error (RMSE) with the analysis done at 95% confidence level. A low MBE value of 0.0327 suggests a good long-term representation of the physical problem. The RMSE which was in the range of 0.1835 to 0.2887 is dilates the efficiency of the generalized model. Sokoto has a relatively high annual solar irradiance and far much more than the 1.361KW/m2/d benchmark. Maiduguri has the highest annual irradiance as compared to other locations used as case studies in this research paper. It also has the highest potential for the generation of solar energy. Maiduguri with an annual average solar irradiance of 5.89kWh/m2/d is the least site under consideration. This signifies that Nigeria is a good site for solar exploration and has high solar energy feasibility, as Port-Harcourt (the site with lowest solar irradiance) is significantly above the standard value of annual average solar irradiance. Even though, the solar radiation is generally high throughout the year in Maiduguri, February – April appeared as the months with the highest solar radiation. August appeared as the month with lowest solar radiation. Jos had the best solar irradiance in the country thus representing a place of huge potential in the solar exploration market. Enugu and Port-Harcourt had low solar irradiance compared to other locations used in this paper. The global solar radiation intensity produced by the generalized model developed can be used in the design, analysis and performance estimation of the solar conversion system. The estimation of the average daily global solar radiation which is necessary for optimal economic sizing of solar photovoltaic systems will encourage extensive use of solar energy, which is an essential solution for high atmospheric pollution caused from fossil fuel combination. The result from the research work shows that most parts of Nigeria have a very high climatic feasibility of generating renewable energy using solar energy that can be utilized for off grid rural electrification and further increase the total energy accessibility in the country.

Key words: Solar Irradiance, Climate Feasibility, Solar Energy, Renewable Energy, Solar Power, Generalized, RMSE, MBE, Global Solar.


 

 

 

 

 

 

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