Comparison of experimental data and two clear sky models

Abstract : Solar energy is becoming a key player in manufacturing especially for off-grid applications such as community factories. Between the radiation emitted by the Sun and that absorbed on Earth, different phenomena take place. Many models were developed to tackle and explain these phenomena with varying levels of accuracy and complexity. Two commonly used models in most commercial simulation software such as ANSYS® Fluent® are the Fair Weather Condition and Theoretical Maximum Method. The aim of this paper is to investigate the accuracy of these models based on experimentally measured data. While these models assume a completely clear sky, the study is based on wet season. Global irradiance data acquired for different hours (9 o'clock, 12 o'clock and 15 o'clock) of the day was used. Results show good correlation between the average global irradiance for the Fair Weather Condition and the experimental values. The accuracy is more important for high solar elevation around 12 o'clock.
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Submitted on : Saturday, April 7, 2018 - 7:37:01 AM
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Paul Guillou, D Madyira, Olivier Marc, E Akinlabi. Comparison of experimental data and two clear sky models. International Conference on Competitive Manufacturing , Jan 2016, Stellenbosh, South Africa. ⟨hal-01739793⟩

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