Investigation on geothermal binary-flashing cycle employing zeotropic mixtures as working fluids
文献类型：期刊论文
| 作者 | Wang, Lingbao1,2,3; Bu, Xianbiao1,2,3 ; Li, Huashan1,2,3
|
| 刊名 | GEOTHERMAL ENERGY
 |
| 出版日期 | 2019-12-05 |
| 卷号 | 7期号:1页码:16 |
| 关键词 | Binary-flashing cycle Zeotropic mixtures Geothermal energy R245fa R600 Optimum performance |
| ISSN号 | 2195-9706 |
| DOI | 10.1186/s40517-019-0153-4 |
| 通讯作者 | Li, Huashan(lihs@ms.giec.ac.cn) |
| 英文摘要 | The binary-flashing cycle (BFC) is supposed to be a promising technology for geothermal recovery due to the full use of geofluid. For further performance improvement, the potential of using mixtures of a hydrocarbon and a retardant in the BFC system is investigated. R245fa is selected as a retardant and blended with R600 to form zeotropic mixtures. With the thermal efficiency (eta(th)), exergy efficiency (eta(ex)), net power output per ton geofluid (PRW), and exergy destruction rate (E-d) as evaluation indexes, the flowsheet modeling and optimization are conducted to explore the optimal compositions and operating parameters. It is revealed the optimal mass fraction of R600/R245fa is 0.44/0.56, at which the flammability of R600 is suppressed, the global warming potential (GWP) of R245fa is reduced. The maximum eta(ex) and PRW are higher than those of component fluids. The maximum E-d occurs in the heat exchanger, which should be optimized. The recommended generation pressures are 1200-1430, 1240-1480, 1220-1460, and 1170-1420 kPa, respectively, for R600 mass fraction of 0.2, 0.4, 0.6, and 0.8. In addition, the flashing temperature is also optimized. Although the mixtures do not always yield superior performance, it is still beneficial to apply the mixtures to the BFC system through systematic consideration of safety and environmental friendliness. |
| WOS关键词 | ORGANIC RANKINE-CYCLE ; GRADE WASTE HEAT ; ECONOMIC-ANALYSIS ; ORC SYSTEM ; HYDROCARBONS ; OPTIMIZATION ; PERFORMANCE ; R245FA ; DESIGN ; SELECTION |
| 资助项目 | National Key R&D Program of China[2018YFB1501805] ; Natural Science Foundation of Guangdong Province[2016A030313174] ; National Natural Science Foundation of China[41972314] |
| WOS研究方向 | Energy & Fuels ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000516748800001 |
| 出版者 | SPRINGEROPEN |
| 资助机构 | National Key R&D Program of China ; Natural Science Foundation of Guangdong Province ; National Natural Science Foundation of China |
| 源URL | [http://ir.giec.ac.cn/handle/344007/26534]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Li, Huashan |
| 作者单位 | 1.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China 2.CAS Key Lab Renewable Energy, Guangzhou 510640, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Lingbao,Bu, Xianbiao,Li, Huashan. Investigation on geothermal binary-flashing cycle employing zeotropic mixtures as working fluids[J]. GEOTHERMAL ENERGY,2019,7(1):16. |
| APA | Wang, Lingbao,Bu, Xianbiao,&Li, Huashan.(2019).Investigation on geothermal binary-flashing cycle employing zeotropic mixtures as working fluids.GEOTHERMAL ENERGY,7(1),16. |
| MLA | Wang, Lingbao,et al."Investigation on geothermal binary-flashing cycle employing zeotropic mixtures as working fluids".GEOTHERMAL ENERGY 7.1(2019):16. |
入库方式： OAI收割
来源：广州能源研究所
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