Experimental Investigation of Soiling and Temperature Impact on PV Power Degradation: North East-Iraq as A Case Study

Gufran  Adnan Jendar; Layth  Abed Hasnawi; Qusay Hassan; Bartosz Ceran; Abdulmajeed Mohamad

doi:10.24237/djes.2022.15402

Authors

Gufran Adnan Jendar Department of Mechanical Engineering, University of Diyala, 32001 Diyala, Iraq
Layth Abed Hasnawi
laythabed2014@gmail.com
Department of Mechanical Engineering, University of Diyala, 32001 Diyala, Iraq
Qusay Hassan Department of Mechanical Engineering, University of Diyala, 32001 Diyala, Iraq
Bartosz Ceran Faculty of Electrical Engineering, Poznań University of Technology,Poznań , Poland
Abdulmajeed Mohamad Department of Mechanical and Manufacturing Engineering, University of Calgary, Calgary, Canada

Keywords:

Solar energy,, Photovoltaic cell temperature,, Soiling effect,, Module power degradation

Abstract

The main objectives of this study are to assess the degradation of power, voltage and current for photovoltaic (PV) modules in predicting temperature and soiling based on five-month measurements. This study aimed to present simple experimental models for estimating the temperature and effects of dust on PV power generation. Results demonstrated that soiling short-circuit current loss underestimates the real soiling power loss by approximately 8%, and this value rises with the increase in dust density. The soiling rate during the week of dust deposition was 0.3% per day and during the final week was 0.15% per day. Results indicate that the polynomial model from the second degree is more accurate than the linear and power models for evaluating the influence of dust on PV systems in the case study. The results suggest that such analysis is required to arrive at a realistic estimation of the best cleaning time in PV power plants.

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Author Biography

Layth Abed Hasnawi, Department of Mechanical Engineering, University of Diyala, 32001 Diyala, Iraq

Department of Mechanical Engineering, College of Engineering, University of Diyala, Iraq

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