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British University in Dubai (BUiD) 2021

Performance Optimization of Photovoltaic Thermal System under UAE Climate Condition : Experimental and Simulation Analysis

ALSHAAER, SHEIKHA ALI

Titre : Performance Optimization of Photovoltaic Thermal System under UAE Climate Condition : Experimental and Simulation Analysis

Auteur : ALSHAAER, SHEIKHA ALI

Université de soutenance : British University in Dubai (BUiD)

Grade : DOCTOR OF PHILOSOPHY IN ARCHITECTURE AND SUSTAINABLE BUILT ENVIRONMENT 2021

Résumé partiel
One of the worldwide challenges is reducing energy consumption to reduce greenhouse gas (GHG) emissions that are associated with energy production and use. Delay in taking proper action will lead to the catastrophic effect of global warming (Ghoneim, 2016). In general, until today, the majority of energy is produced from fossil fuel sources (Riffat, 2011). There are various reasons for still depending on fossil fuel resources to produce energy. Fossil fuel energy has a lower production cost than renewable energy (Sharma, 2016). In addition, fossil fuel is very efficient in producing energy. On the other hand, generating power from solar energy is considered to be a promising solution. However, the Photovoltaic system has low efficiency resulting from the low conversion factor of Photovoltaic cells (Shaneb & other 2017). Accordingly, various researchers focused on enhancing the PV performance through avoiding shading and, using the sun tracking system. Photovoltaic thermal is considered to be one of the methods used to enhance the electrical performance of PV systems. The main working principle of PVT is passing fluid at the back of the PV panel that removes the excess heat from the PV panel surface and enhances electrical efficiency. The fluid used in PVT is either water, air, or refrigerant (Shaneb et al, 2017). The aim of performing the test was to evaluate and assess both electrical and thermal performance of the PVT system, under UAE climate conditions, in the first phase of the study. Then, enhance the performance of PVT, by optimizing some of the design parameters. To achieve the project aims, the research started with a review of previous studies related to PVT. The literature review focused on data required to be collected during the experimental phase, the capability of TRNSYS software, and optimization parameters. Therefore, the research methodology has been carried out in two parts : experimental and simulation. In the first part, the performance of PVT, in comparison with PV panel, was tested experimentally. The collected data from the experiment were utilized to develop a simulation model to represent PVT by using TRNSYS software. The simulation model was used to optimize the PVT performance by changing some of the design parameters. The design parameters were : number of collector tubes, tubes diameter, and PVT panel area, and water flow rates

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