Parabolik Oluk Güneş Toplayıcılarının Simülasyonu ve Anlık Isıl Performanslarının İncelenmesi.

Due to global warming in the world, energy production systems connected to fossil energy sources are gradually decreasing. Due to this, the use of renewable energy sources is increasing. Solar energy is one of the most important renewable energy sources. In order to meet the increasing energy needs, the use of solar energy in photovoltaic systems is increasing rapidly. Studies for the use of solar energy in thermal systems are also continuing to increase. The parabolic solar collector stands out among the thermal energy applications. With these collectors, it is possible to produce heat energy up to 300 oC temperatures. At this temperature, electricity can be generated by heat energy. On the other hand, in summer, when cooling energy is very much needed, cooling can also be done with absorption cooling systems using abundant solar energy.. High coefficient of performance(COP) can be obtained in double-stage absorption cooling systems with high temperature heat energy. In this study, the instantaneous thermal performance of parabolic trough type solar collectors was investigated by modeling. For this, a simulation program has been written in the MATLAB programming language. In this program, the DPP model was used to calculate the instantaneous direct solar radiation value(DNI). With the calculations made using this model, it has been shown that it would be appropriate to place such collectors, which follow the sun in one dimension, in a North-South direction so that they can produce more energy.Using the characteristics and dimensions of a sample collector, instantaneous efficiency and useful heat calculations were performed. Daily, monthly and annual thermal power values and efficiency calculations were made with the sum of these instantaneous values. For the regions selected as an example, comparisons were made by finding annual thermal power values depending on environmental parameters. The ideal environmental parameters for the installation of such systems have been determined and discussed. [ABSTRACT FROM AUTHOR]