Steady-state thermodynamic simulation and structural design of the dephlegmator used in mixed-refrigerant joule-thomson refrigerators
文献类型：期刊论文
| 作者 | Li, Mei1,2; Gong, Maoqiong1; Guo, Hao1; Sun, Zhaohu1; Wu, Jianfeng1 |
| 刊名 | Applied thermal engineering
 |
| 出版日期 | 2016-08-05 |
| 卷号 | 106页码:480-492 |
| ISSN号 | 1359-4311 |
| 关键词 | Thermodynamic simulation Structural design Dephlegmator Mrjt |
| DOI | 10.1016/j.applthermaleng.2016.05.170 |
| 通讯作者 | Gong, maoqiong(gongmq@mail.ipc.ac.cn) |
| 英文摘要 | Dephlegmators can be used to reduce the energy consumption and simplify the layout of the mixed refrigerant joule-thomson (mrjt) cycle. heat-exchange characteristics and refrigeration design are currently based on highly simplified assumptions. synthesis methods to efficiently solve all design issues of dephlegmators in mrjt cycle are insufficient. no suitable separation module is available for the simultaneous heat and mass transfer processes in aspen plus because the module should be programmed and incorporated into aspen plus as a user-defined unit. in this paper, a systematic steady-state method was proposed for the detailed design of dephlegmators for gas mixture separation, considering the simulation and heat exchanger design simultaneously. the material balance, vapor-liquid equilibrium, mole fraction summation and heat balance (mesh) model was programmed in fortran language. good agreements and the feasibility of the mesh model were found. deviations between the simulation results and patent data were all within 5%. the errors in the predicted temperatures of vapor and liquid products were less than 2% and 10%, respectively. fine applicability and low energy consumption of the dephlegmator were addressed. the mole fraction of n-butane in the liquid phase had high recovery ratio of 90%. the dephlegmator decreased more than 30% of energy consumption compared with the traditional distillation tower under similar separation effects. in the structural design process, the dephlegmator was divided into certain segments by baffle plates on the basis of segmented calculation. the heat transfer coefficient, heat transfer area, pressure drop, and structural parameters of the dephlegmator were evaluated. a clear and comprehensive three-dimensional dephlegmator model was shown. 2016 elsevier ltd. all rights reserved. |
| WOS关键词 | MEMBRANE SEPARATION PROCESS ; TEMPERATURE GAS SEPARATION ; VAPOR PERMEATION PROCESS ; EXPERIMENTAL VALIDATION ; DISTILLATION ; ETHANOL ; CONDENSATION ; MIXTURES ; RECOVERY ; CASCADE |
| WOS研究方向 | Thermodynamics ; Energy & Fuels ; Engineering ; Mechanics |
| WOS类目 | Thermodynamics ; Energy & Fuels ; Engineering, Mechanical ; Mechanics |
| 语种 | 英语 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| WOS记录号 | WOS:000381530600052 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2376260 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Gong, Maoqiong |
| 作者单位 | 1.Chinese Acad Sci, Tech Inst Phys & Chem, Key Lab Cryogen, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 101408, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Mei,Gong, Maoqiong,Guo, Hao,et al. Steady-state thermodynamic simulation and structural design of the dephlegmator used in mixed-refrigerant joule-thomson refrigerators[J]. Applied thermal engineering,2016,106:480-492. |
| APA | Li, Mei,Gong, Maoqiong,Guo, Hao,Sun, Zhaohu,&Wu, Jianfeng.(2016).Steady-state thermodynamic simulation and structural design of the dephlegmator used in mixed-refrigerant joule-thomson refrigerators.Applied thermal engineering,106,480-492. |
| MLA | Li, Mei,et al."Steady-state thermodynamic simulation and structural design of the dephlegmator used in mixed-refrigerant joule-thomson refrigerators".Applied thermal engineering 106(2016):480-492. |
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来源：中国科学院大学
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