Methodology of assessing working mediums availability for a novel heat-power conversion system with reverse electrodialysis technology

WU Xi; XU Shiming; WU Debing; LIU Huan; CHEN Shunquan

doi:10.11949/j.issn.0438-1157.20161424

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Methodology of assessing working mediums availability for a novel heat-power conversion system with reverse electrodialysis technology

更新时间：2025-11-26

- Methodology of assessing working mediums availability for a novel heat-power conversion system with reverse electrodialysis technology
- CIESC Journal Issue S2, Pages: 326-332(2016)
- 作者机构：
  
  1. 大连理工大学能源与动力学院, 海洋能源利用与节能教育部重点实验室,辽宁,大连,116024
  2. 广州中国科学院先进技术研究所, 广东省膜材料与膜分离重点实验室,广东,广州,511458
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20161424
  CLC： K115
- Online First：30 December 2016，
  
  Published：30 December 2016
- 稿件说明：
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WU Xi, XU Shiming, WU Debing, et al. Methodology of assessing working mediums availability for a novel heat-power conversion system with reverse electrodialysis technology[J]. CIESC Journal, 2016, (S2): 326-332.
DOI：

WU Xi, XU Shiming, WU Debing, et al. Methodology of assessing working mediums availability for a novel heat-power conversion system with reverse electrodialysis technology[J]. CIESC Journal, 2016, (S2): 326-332. DOI： 10.11949/j.issn.0438-1157.20161424.

摘要

将开式逆向电渗析法浓差能发电技术原理与吸收式制冷/热泵系统循环原理相结合，提出了一种全新的闭式热-电循环转换方法，且发现工作介质（溶质与溶剂混合物）是影响该系统能量转换效率的关键因素之一。以9种溶质（一价无机盐）和17种溶剂（标准沸点温度在40~150℃）为研究对象，通过分析工质的13项关键物性参数（沸点温度、汽化潜热、比热容、溶解度、偏心因子、偶极矩、相对介电常数、电导率、黏度、热导率、燃爆极限、自动点火温度及毒性），建立了从热力学性质、电化学性质、输运特性、危险性等多角度来综合评价热-电循环转换系统工质匹配性的准则，并据此推断无机盐-溶解剂-调节剂三元混合物极具发展潜力。

Abstract

A novel closed type heat-power conversion system was proposed by integrating the essential principles of both reverse electrodialysis(RED)power generation technology and absorption refrigeration/heating technology.Besides

the working mediums solutions(consisted of solute and solvent) were found to be one of the vital factors for energy conversion efficiency of this new power generation system.Altogether

nine solutes(monovalent inorganic salts) and seventeen solvents(with the normal bubble point temperature within 40-150℃) have been selected as the focused substances

and their thirteen crucial properties(bubble point temperature

latent heat of vaporization

specific heat capacity

solubility

acentric factor

dipole moment

relative dielectric constant

electric conductance

viscosity

thermal conductance

auto-ignition temperature

flammability limit

and toxicity)

have beencompared and analyzed.Further

methodology of comprehensively assessing the availability of working mediums for this new heat-power conversion system has been established after finishing a series of discussions that were carried out from the aspects of their fundamental thermophysical properties

transport features

electrochemistry characteristics

and dangerousness.Finally

it is ternary type working mediums that consisted of inorganic salt-solute-modifier

are deduced to be in bright prospect.

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