Effect of ambient temperature on the efficiency of the regenerative and reheat Çatalağzı power plant in Turkey |
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| Affiliation: | 1. Abant Izzet Baysal University, Department of Mechanical Engineering, Bolu 14280, Turkey;2. Abant Izzet Baysal University, Department of Physics, Bolu 14280, Turkey;1. Osmaniye Korkut Ata University, Department of Physics, Osmaniye 80000, Turkey;2. Abant Izzet Baysal University, Department of Mechanical Engineering, Bolu 14280, Turkey;3. Abant Izzet Baysal University, Department of Physics, Bolu 14280, Turkey;1. Abant Izzet Baysal University, Department of Physics, Bolu 14280, Turkey;2. Osmaniye Korkut Ata University, Department of Physics, Osmaniye 80000, Turkey;3. Abant Izzet Baysal University, Department of Mechanical Engineering, Bolu 14280, Turkey;1. National Thermal Power Engineering & Technology Research Center, North China Electric Power University, Changping District, Beijing 102206, China;2. Zhejiang Electric Power Design Institute, Xihu District, Hangzhou 310012, China;3. University of Kentucky, Power and Energy Institute of Kentucky, Lexington, KY 40506, United States;1. Department of Mechanical Engineering, Adana Science and Technology University, 01180 Adana, Turkey;2. Department of Food Engineering, Adana Science and Technology University, 01180 Adana, Turkey |
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| Abstract: | In this study, the energy and exergy analysis have been applied to the Çatalağzı power plant in Zonguldak, Turkey. The fuel used in this power plant was low calorific value coal middlings with particle size below 0.5 mm. The heat loss of each components were determined by energy analysis and the irreversibility rates (or exergy destruction rates) of whole plant were obtained for different ambient temperatures by the exergy analysis. The ambient temperature was selected within the range of 5–35 °C. The percentage efficiency defects of each components (or the ratios of the irreversibility rates to the fuel exergy rate) and the rational efficiency, the exergy efficiencies of the boiler, the turbine, the pump, the heaters and the condenser were determined for different ambient temperatures.It was found that the efficiency defect of boiler had strong effects on the total efficiency defect and the rational efficiency of the plant. The ambient temperature had high effect on the changes of the irreversibility of boiler (or efficiency defect of boiler) but it had low effect on outer components of the plant. |
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