Numerical studies of an air-cooled condenser as part of the thermal diagram of a binary geothermal power plant
| Parent link: | Thermal Science and Engineering Progress.— .— Amsterdam: Elsevier Science Publishing Company Inc. Vol. 66.— 2025.— Article number 103969, 19 p. |
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| Gaia: | Title screen The use of Earth’s thermal energy in the 21st century is becoming one of the priorities for the development of the energy industry in most developed and developing countries of the planet, and by the end of the century it may take from 30 to 80% of all energy produced in the world. The current level of technology development makes it possible to produce geothermal energy for use in local heat supply systems almost anywhere in the world. The purpose of these studies is a comprehensive analysis of the features of the operation of a binary geothermal power plant with air-cooled condenser in various climatic operating conditions. The object of the study is a binary geothermal station with air-cooled condenser, used during a calendar year. Research methods: numerical studies based on mathematical algorithms of a binary geothermal installation system and an air-cooled condenser. The thermal diagram of a binary type geothermal power plant is considered. Geothermal power plant includes an air-cooled condenser. A model has been developed that includes a detailed thermal calculation of the geothermal power plant’s diagram and a verification calculation of the air-cooled condenser cooling surfaces. The efficiency of the geothermal power plant operation was analyzed depending on the most important indicators, such as: type of working fluid, mass flow rate, coolant (ambient air) temperature. Numerical studies have been conducted to find optimal working fluids and temperature conditions for removing thermal energy from the organic Rankine cycle using the Earth’s low-potential thermal energy. The useful power output and absolute electrical efficiency of the geothermal plant are maximized. The data obtained earlier during the research is clarified. It was found that the geothermal installation operating with ACC consisting of 30 finned tube packages has the highest electrical efficiency and power. The speed of cooling air injection by blower fans in the air-cooled condenser section is 3 m/s. When a binary geothermal power plant operates during a calendar year, the highest average monthly electrical power is expected to be achieved in the coldest month and amounts to 1426 kW in January for ozone-safe freon R245ca. The lowest average monthly electrical power released from the terminals of the geothermal power plant binary generator is achieved in July and amounts to 916 kW Текстовый файл AM_Agreement |
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2025
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| Sarrera elektronikoa: | https://doi.org/10.1016/j.tsep.2025.103969 |
| Formatua: | Baliabide elektronikoa Liburu kapitulua |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=682089 |