Title: Solar radiation exergy and quality performance for Iraq and Turkey

Authors: Hayder Noori Mohammed; M. Pinar Mengüç

Addresses: Mechanical Engineering, Özyeğin University, Istanbul 34794, Turkey; College of Engineering, University of Kerbala, Karbala 56001, Iraq ' Mechanical Engineering, and Center for Energy, Environment & Economy (CEEE), Özyeğin University, Istanbul 34794, Turkey

Abstract: The present study is conducted with two primary objectives: First, a new formulation for the maximum efficiency of the solar radiation conversion is developed by considering the radiative energy transfer between two surfaces at different temperatures for a constant volume system. Second, a new methodology is introduced for estimating the exergy value of the monthly average daily horizontal global radiation, including many parameters, such as monthly average daily value of the horizontal extraterrestrial radiation, the number of sunny hours, the day length, the mean temperature and the mean wind velocity. Seven statistical parameters are used to validate the accuracy of all models. The results of the two new models are found to be more reliable than the results obtained from other models. This study, which was conducted for four locations in Iraq and Turkey. The findings would help in predicting the maximum availability of solar radiation based on weather parameters.

Keywords: solar radiation; solar radiation exergy; empirical models.

DOI: 10.1504/IJEX.2018.091560

International Journal of Exergy, 2018 Vol.25 No.4, pp.364 - 385

Received: 29 Jun 2017
Accepted: 07 Dec 2017
Published online: 04 May 2018 *

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