Author/Authors
çakır, abdülkadir isparta uygulamalı bilimler üniversitesi - teknoloji fakültesi - elektrik-elektronik mühendisliği bölümü, Isparta, Türkiye , onay, esra isparta uygulamalı bilimler üniversitesi - teknoloji fakültesi - elektrik-elektronik mühendisliği bölümü, Isparta, Türkiye
Title Of Article
Water-cooled automation system application in increasing the efficiency of photovoltaic panels: Antalya example
شماره ركورد
45227
Abstract
One of the problems of solar power plants, whose applications have increased considerably today, is that the efficiency of the panel decreases as the temperature increases. In this study, it is aimed to prevent panel efficiency decrease with temperature. In the study, the efficiency increase of the system was analyzed by using the water cooling method in a 1.75 kW solar energy facility in Antalya. In cooling with water; water tank, water pump, valves, pipes and automation system (control card, sensors and relays) are used. With the valves used at the outlet of the water pump, the water circulation rate was controlled depending on the temperature change in the system, and a fully controlled system was obtained for panel cooling. Two temperature sensors were placed at the DC cable connection points, which are the most heated part of the panels, and the reference temperature value was determined by taking the average of the values read from these temperature sensors. In the system, as the temperature values of the panels increased, the number of active valves increased, consequently, the flow of water was increased and the circulation of the water was faster, with minimum evaporation and rapid cooling, and the system efficiency was increased in the shortest time.When the panel surface temperature reaches 70 °C, the cooling system has been activated in 4 valves. When the average temperature of the front of the panel decreased to 55 °C, 1 valve was deactivated and 3 valves operated until the temperature decreased to 40 °C. When the average temperature drops to 30 °C, only 1 valve remained active. When the panel surfaces are down to 25 °C, the cooling system is deactivated. As a result, in the experiments conducted in Antalya, one of our provinces with the highest radiation value, an increase of 24.3% in power and 2.2% in efficiency was achieved with the cooling process.
From Page
23
JournalTitle
Sdu International Technologic Science
To Page
33
JournalTitle
Sdu International Technologic Science
Link To Document