Su ısıtma uygulaması için güneşi takip eden parabolik çanak toplayıcısının kullanılması.

Abstract

In this study, it is aimed to obtain hot water through a parabolic dish mirror tracking the sun in two axes in climatic conditions of Diyarbakır, Turkey. A heat exchanger with copper spiral element was designed as an absorber on the focus point of the system. Water coming from network exits from the system by heated in the absorber. The experimental data was acquired from 10:00 a.m. to 16:30 p.m. o'clock. The effect of mass flow rate on efficiency was studied considering three cases of 0.00187, 0.00217 and 0.00345 kg/s. The results indicated that the highest useful heat amount and thermal efficiency were obtained at 0.00345 kg/s. The thermal efficiency values were determined as 32 to 39%. The exergy efficiency of the system was also evaluated as 5.7 to 6.3% according to the experimental data.

Lifetime and performance alteration of photovoltaic panels, the case of Aerzen, Germany

“…Three different photovoltaic panel technologies are evaluated for the calculations. Other one [6] is related with utilization of a sun-tracking parabolic dish collector for water heating application under the climatic conditions of Diyarbakır. These and other similar studies have addressed the capacities and performances of photovoltaic power plants.…”