Bir fotovoltaik termal (PV/T) kollektörün matematiksel modellemesi

Fotovoltaik-termal (PV/T) kollektörlerin performansı bir süredir hem hesaplamalı hem de deneysel olarak araştırılmış olsa da, daha önceki araştırmalarda oluşturulan termal modeller çoğunlukla yıllık verimleri tahmin etmek için kararlı hal modelleriydi. Bu çalışmada fotovoltaik (PV) hücreler ve termal toplayıcı, PV/T toplayıcıyı oluşturmak için bir sisteme entegre edilmiştir ve su-etilen glikol, PV hücrelerinin sıcaklığını düşürmek için bir soğutucu olarak kullanılmıştır. Bu çalışmanın amacı, su-etilen glikol bazlı bir PV/T toplayıcıyı sayısal olarak analiz etmektir. Zamana bağlı dinamik analizler MATLAB yazılım programı kullanılarak yapılmıştır. Ayrıca PV/T yüzey sıcaklığının, akışkan çıkış sıcaklığının ve elde edilen elektriksel gücün zamanla değişimleri incelenmiştir.

Anahtar Kelimeler:

Güneş enerjisi, Fotovoltaik termal kollektör, Termal performans, Elektriksel performans, Photovoltaic/Thermal colector, Solar energy, Thermal efficiency, Electrical efficiency

Mathematical modeling of a photovoltaic thermal (PV/T) collector

Even though the performance of photovoltaic/thermal (PV/T) panels had been examined both computationally and experimentally for some time, the thermal models created in earlier research were mostly steady-state models for estimating the annual yields. In this study, the solar thermal collector and photovoltaic (PV) cells are combined to create the PV/T collector, and water-ethylene glycol is utilized as a coolant to lower the temperature of the PV panels. The goal of this study is to analyze a water-ethylene glycol-based PV/T collector numerically. Time-dependent dynamic analyzes were performed using the MATLAB software program. Investigations were also done into how the electrical power produced and the temperatures of the fluid outlet and PV/T surface changed over time. As a result of the annual analysis, the maximum power of PV/T is calculated as 155 W. Also, the maximum surface temperature of PV/T panel’s is 56.62°C.

Keywords:

Photovoltaic/Thermal colector, Solar energy, Thermal efficiency, Electrical efficiency,

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