Abstract
Photovoltaic (PV) power plant is one of the most important renewable power generation methods, which is rapidly developing. One of the weak points of PV power plants is the negative effects of increasing the cells temperature on their power generation. In this study, a simple and low cost method is proposed to reduce the temperature of these panels. The use of fins has been proven in many industrial applications and here it is used as coolant of PV panel. This experiment was performed in maximum operating temperature of photovoltaic modules which is known as 85°C. By using numbers of aluminum fins on the back surface of photovoltaic panels under two different irradiation, the temperature reduction up to 7.4 °C was observed, and this reduction leads to 2.72 % increasing in efficiency. Finally, an economical assessment of the offered cases based on output power of PV panels carried out, which shows a suitable economic justifiability.
Highlights
INTRODUCTION1 performance of PV modules by silver/water nanofluid
The results showed that addition of Phase Change Material (PCM), for about 80 min, can maintain the temperature of PV panel under 40°C
The results showed that PV/PCM system has the best performance, whereas the temperature difference of more than 34°C was created between this PV panel with conventional one
Summary
INTRODUCTION1 performance of PV modules by silver/water nanofluid. They investigated both energy and exergy analysis. It is Nowadays, due to the technological advancements, the reported that in turbulent flow, by 4 wt% of mentioned demand for power feels more than before To this aim, most nanofluid, the output power will increased up to 35%, countries in the world are moving towards the use of clean compared by conventional PV module. Solar energy is very benefited and it has different temperature was shown This temperature reduction leads to activities can be perform by means of light and heat of the increasing the electrical efficiency up to about 5.75%. You can produce electricity by two approches: heat and simulator under two different irradiation of 600 and 1100 W/m2 They used Fe3O4 /water (ferro-fluid) as nano fluid and light. He used GR40 behind PV panel as PCM, and Several methods have been suggested to decreas e losses: showed for about 150 min, this material can kept the panel
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