Comparative analysis of anisotropic Sky models and experimental data in estimating solar radiation on tilted surface in Sub Saharan Africa Climate

Oguejiofor Miracle Mbah, Paul Amaechi Ozor, Charles Mbohwa, Chigbo A. Mgbemene, Samuel Ogbonna Enibe

Research output: Contribution to journalConference articlepeer-review

Abstract

Comparative analysis of Anisotropic Sky models and measured data in search of a decision support tool in estimating solar radiation on tilted surface is presented. The study investigates the case of a typical sub-Saharan African municipality climate, in South East Nigeria. In the experiment, the solar radiation on a solar energy surface tilted to 15o and facing southwards was measured with a solarimeter. A second solarimeter was employed to measure solar radiation on horizontal surface. The experiment was conducted during October, 2016 to March, 2017. The anisotropic sky models considered were Perez model as well as Hay, Davies, Klucher and Reindl (HDKR) models. Full analysis of the models with the experimental data was implemented using Scilab computational software, version 5.2.2. The performance criteria for the studied models were based on selected standard statistical error indices, including mean bias error (MBE), root mean square error (RMSE) and mean absolute percentage error (MAPE). The results show that Perez model recorded the least MBE of - 0.005Wh/m2, least RMSE of 0.0147Wh/m2 and least MAPE of 0.9587Wh/m2 than HDKR model. The study reveals that Perez model can be utilized as a good means of estimating solar radiation on tilted surfaces in the studied location.

Original languageEnglish
Pages (from-to)592-598
Number of pages7
JournalProceedings of the International Conference on Industrial Engineering and Operations Management
Volume2018
Issue numberSEP
Publication statusPublished - 2018
Event3rd North American IEOM Conference. IEOM 2018 -
Duration: 27 Sept 201829 Sept 2018

Keywords

  • Anisotropic sky models
  • Experimental data
  • Renewable energy
  • Solar radiation estimation

ASJC Scopus subject areas

  • Strategy and Management
  • Management Science and Operations Research
  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering

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