1. Development and multiobjective optimization of an integrated flash-binary geothermal power plant with reverse osmosis desalination and absorption refrigeration for multi-generation
- Author
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Hamoda Gnaifaid and Hasan Ozcan
- Subjects
Geothermal power ,Power station ,Renewable Energy, Sustainability and the Environment ,business.industry ,Geothermal energy ,0211 other engineering and technologies ,Geology ,02 engineering and technology ,010502 geochemistry & geophysics ,Geotechnical Engineering and Engineering Geology ,01 natural sciences ,law.invention ,Renewable energy ,law ,Exergy efficiency ,Absorption refrigerator ,Environmental science ,021108 energy ,Electricity ,Process engineering ,business ,Geothermal gradient ,0105 earth and related environmental sciences - Abstract
This study investigates the thermodynamic and economic aspects of a multigeneration plant for inherent production of freshwater, power, cooling and heating by utilizing geothermal energy. The developed plant utilizes geothermal energy at a target temperature of 200 °C through a single flash-binary power plant with reinjection. The results of the thermodynamic analysis show that the overall plant energy and exergy efficiency of the plant can be as high as 61 % and 37.8 %, respectively, while the plant cost varies between 160–330 $/h. Optimization results show that an optimal exergy efficiency of 58 % is achievable when the plant cost rate is 242 $/h. The results indicate that geothermal driven freshwater production is one of the most economically feasible renewable driven clean production options, while a flash/binary power plant results in higher efficiency and lower electricity costs.
- Published
- 2021
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