Analysis of the cycle arrangement of a binary geothermal power plant using a low- and medium-temperature source

被引：3
|
作者：
Alekseenko, Sergey [1 ,2 ]
Zavorin, Alexander [1 ]
Gubin, Vladimir [1 ]
Sergey, Lavrinenko [1 ]
Tsibulskiy, Svyatoslav [1 ]
Yankovsky, Stanislav [1 ,3 ]
机构：
[1] Tomsk Polytech Univ, 30 Lenin Ave, Tomsk 634050, Russia
[2] Russian Acad Sci, Kutateladze Inst Thermophys, Siberian Branch, 1 Academician Lavrentieva Ave, Novosibirsk 630090, Russia
[3] 30 Lenin Ave, Tomsk 634050, Russia
来源：
THERMAL SCIENCE AND ENGINEERING PROGRESS | 2024年 / 48卷
关键词：
GeoPP; Geothermal water; Freon; ORC; Expander; Renewable energy source; Absolute electric efficiency; Electric power; ORGANIC RANKINE-CYCLE; WASTE HEAT-RECOVERY; SCROLL EXPANDER; WORKING FLUID; R245FA; SYSTEM; EFFICIENCY; ORC;
D O I：
10.1016/j.tsep.2024.102400
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The cycle arrangement of a binary-type GeoPP using a thermal energy source with a temperature of 80 divided by 150 C was considered; its elements and structural connections were substantiated. A method was proposed, numerical studies were carried out to find optimal working bodies for the ORC and parameters for the operation of GeoPP in nominal and variable modes. The greatest efficiency and power in the considered modes belongs to the GeoPP operating by the ORC on the R141b freon. Since this freon is prohibited for use as having an ozone-depleting chemical structure, R245fa was selected among the ozone-safe freons considered, for which the electrical power and absolute electrical efficiency of the GeoPP have the best values at a source temperature of 80 divided by 120 C. R245ca and R365mfc are the most effective freons for the ORC of GeoPPs at > 120 C-degrees.
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页数：15
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