Yazar "Karaali R." için listeleme
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Effects of ambient conditions on performance of gas turbine cogeneration cycles [Çevre Sartlarinin gaz turbInlI kojenerasyon ÇevrImlerInIn performansi ÜzerIne etkIlerI]
Karaali R.; Oztürk I.T. (Turkish Society for Thermal Science and Technology, 2017)In this paper, effects of the ambient conditions on performance of cogeneration cycles are analyzed by using exergy analysis method. These cogeneration cycles are the simple cycle, the air preheating cycle, the air-fuel ... -
Efficiency improvement of gas turbine cogeneration systems [Poboljšanje u?inkovitosti kogeneracijskih sustava plinske turbine]
Karaali R.; Öztürk İ.T. (Strojarski Facultet, 2017)In this study eight methods are evaluated for a gas turbine cogeneration cycle to improve the efficiency. These methods are increasing gas turbine inlet air temperature, cooling the inlet air of the compressor, air preheating, ... -
Exergy analysis of a combined power and cooling cycle
Karaali R. (Polish Academy of Sciences, 2016)Ammonia-water power cycles are important for efficient utilization of low temperature heat sources such as geothermal, solar, waste heat sources, etc. For some special conditions ammonia-water power cycle is an important ... -
Investigation of an alternative fuel for diesel engines
Keven A.; Karaali R. (Polish Academy of Sciences, 2015)Internal combustion engines use generally fossil fuel products. World resources of it is limited. Renewable alternative energy sources are getting important solution for energy demand. Hazelnut oil ethyl ester is obtained ... -
Performance analyses of gas turbine cogeneration plants
Karaali R.; Oztürk I.T. (Turkish Society for Thermal Science and Technology, 2017)In this study, some improving methods of gas turbine cogeneration cycles are applied on a simple cogeneration cycle. These methods are preheating air, preheating air and fuel, inlet air cooling by using evaporative cooling ... -
Thermodynamic analysis of a cascade refrigeration system
Karaali R. (Polish Academy of Sciences, 2016)There is a need for cooling by using the waste heat energy in food industry. Absorption cycles can be driven by waste thermal, geothermal, solar or industrial processes energies. In this study, cascade refrigeration system ... -
Thermodynamic optimization of a zero CO2 emission cogeneration cycle
Karaali R.; Ozturk I.T. (Parlar Scientific Publications, 2016)CO2 emissions that have the greatest negative impact on the greenhouse and the global warming that should be decreased or kept at the same rates. Today fossil fuels share 60 % of total electricity production of the world, ... -
Thermoeconomic analyses of steam injected gas turbine cogeneration cycles
Karaali R.; Öztürk I.T. (Polish Academy of Sciences, 2015)In this study, three different gas turbine cogeneration systems that are preheating air, preheating air-fuel and simple cycles where steam injected in to combustion chamber are analyzed. The effects of steam injection on ... -
Thermoeconomic optimization of gas turbine cogeneration plants
Karaali R.; Öztürk T.T. (Elsevier Ltd, 2015)In this study, a novel thermoeconomic optimization method that is simple and efficient, for real complex cycles is introduced. First, a thermoeconomic analysis method that is called non-linear simplex direct search method ...