Experimental investigation on mechanism of vacuum regeneration of LiCl solution

DOI

10.2991/iceesd-18.2018.345How to use a DOI?

Keywords

vacuum; vaporization; equivalent thickness

Abstract

The solution evaporation in a vacuum is faster than that at the atmospheric pressure, and the required temperature of heat source is relatively low, which can realize the energy conservation. Therefore, it is a subject worthy of investigating. In this experiment, the regeneration process of LiCl solution under vacuum was studied. The effect of equivalent thickness (7mm-16mm), pressure (6kPa-10kPa), temperature difference (10?"?-16?"?) and concentration (24%-30%) on the regeneration performance of the solution was studied, and the influence of different size of the evaporation bottle (spherical and tapered) on the performance of regeneration was also compared. It is resulted that all the effects from the equivalent thickness, pressure, temperature difference and solution concentration have two sides on the evaporation of LiCl solution. The degree of regeneration of LiCl solution shows a maximum point with the change of equivalent thickness. The research of the present paper also shows that the degrees of regeneration have similar variation trends using different shapes of evaporating bottles, but the trends occur in different pressure ranges. However, the shape of the evaporating bottles has little influence on the location of the maximum value of the regeneration degree. Also, it has little influence on the change tendency of the regeneration degree of LiCl solution with the solution concentration in the process of vacuum evaporation. In addition, the conical evaporation bottle is superior to spherical evaporation bottle in the process of vacuum evaporation regeneration of LiCl solution.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Tonghua Zou
AU  - Xiaobing Hou
AU  - Yafei Chang
AU  - Wei Wang
AU  - Dongxu Wei
PY  - 2018/05
DA  - 2018/05
TI  - Experimental investigation on mechanism of vacuum regeneration of LiCl solution
BT  - Proceedings of the 2018 7th International Conference on Energy, Environment and Sustainable Development (ICEESD 2018)
PB  - Atlantis Press
SP  - 1938
EP  - 1947
SN  - 2352-5401
UR  - https://doi.org/10.2991/iceesd-18.2018.345
DO  - 10.2991/iceesd-18.2018.345
ID  - Zou2018/05
ER  -