A new understanding on thermal efficiency of organic Rankine cycle: Cycle separation based on working fluids properties
文献类型：期刊论文
| 作者 | Wang, Yongzhen1; Zhao, Jun1; Chen, Guibing1; Deng, Shuai1; An, Qingsong1; Luo, Chao1,2 ; Alvi, Junaid1
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| 刊名 | ENERGY CONVERSION AND MANAGEMENT
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| 出版日期 | 2018-02-01 |
| 卷号 | 157页码:169-175 |
| 关键词 | Organic Rankine cycle Cycle separating Working fluids selection Molecular complexity Performance prediction Superheat degree |
| ISSN号 | 0196-8904 |
| DOI | 10.1016/j.enconman.2017.11.079 |
| 通讯作者 | An, Qingsong(anqingsong@tju.edu.en) |
| 英文摘要 | The pivotal of organic Rankine cycle (ORC) promotion and optimization is revealing the thermodynamic relationship between cycle configuration, condition and its working fluid properties. Different from the traditional numerical calculation method (TNCM) of ORC, a new thermodynamic cycle separating method (TCSM) is introduced in this paper. Then, efficiency of ORC is conducted expediently by TCSM where Triangle cycle eta(TC)), Carrot cycle (eta(CC)) and Brayton cycle (eta(BC)) efficiencies are regarded as variables, that is, eta(SORC) = f (eta(TC),eta(CC),eta(BC)). When comparing with TNCM, TCSM not only has the acceptable precision for all the investigated 21 working fluids, but also the influence of critical temperature, molecular complexity of the working fluid and superheat degree as well as the reduced operating conditions of ORC can be revealed qualitatively and quantitatively. Finally, three conclusions are revealed: (1) Relationship between ORC limited efficiency (the reduced evaporating temperature of 0.9) and critical temperature of working fluid is revealed; (2) When superheat degree increases, ORC efficiency of dry fluid decreases and wet fluid increases linearly, while the variation of isotropic working fluid remains constant; (3) If the reduced temperatures of two different working fluids are equal, the corresponding efficiencies are equal too. The proposed thermodynamic cycle separating method provides an approach for working fluids selection and performance prediction of ORC. |
| WOS关键词 | WASTE HEAT-RECOVERY ; MULTIOBJECTIVE OPTIMIZATION ; EXERGOECONOMIC ANALYSIS ; THERMODYNAMIC ANALYSIS ; DESIGN ; ORC ; PERFORMANCE ; SELECTION ; SYSTEMS ; ALGORITHM |
| 资助项目 | Guangdong province science and technology project[2013B091500087] ; Tianjin municipal science and technology project[14ZCDGSF00035] |
| WOS研究方向 | Thermodynamics ; Energy & Fuels ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:000425198700016 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | Guangdong province science and technology project ; Tianjin municipal science and technology project |
| 源URL | [http://ir.giec.ac.cn/handle/344007/23477]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | An, Qingsong |
| 作者单位 | 1.Tianjin Univ, Key Lab Efficient Utilizat Low & Medium Grade Ene, MOE, Tianjin 300350, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Yongzhen,Zhao, Jun,Chen, Guibing,et al. A new understanding on thermal efficiency of organic Rankine cycle: Cycle separation based on working fluids properties[J]. ENERGY CONVERSION AND MANAGEMENT,2018,157:169-175. |
| APA | Wang, Yongzhen.,Zhao, Jun.,Chen, Guibing.,Deng, Shuai.,An, Qingsong.,...&Alvi, Junaid.(2018).A new understanding on thermal efficiency of organic Rankine cycle: Cycle separation based on working fluids properties.ENERGY CONVERSION AND MANAGEMENT,157,169-175. |
| MLA | Wang, Yongzhen,et al."A new understanding on thermal efficiency of organic Rankine cycle: Cycle separation based on working fluids properties".ENERGY CONVERSION AND MANAGEMENT 157(2018):169-175. |
入库方式： OAI收割
来源：广州能源研究所
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