Study on desalination of zero-emission system based on mechanical vapor compression. (1st January 2017)

• Record Type: Journal Article
• Authors: Han, D.; He, W.F.; Yue, C.; Pu, W.H.
• Is Part Of: Applied energy. Volume 185:Part 2(2017)
• Page Start: 1490
• Page End: 1496
• Publication Date: 2017-01-01
• Subjects: Zero-emission desalination system -- Mechanical vapor compression -- Energy and exergy analysis -- Compressor power -- Stage number; Power (Mechanics) -- Periodicals; Energy conservation -- Periodicals; Energy conversion -- Periodicals; 621.042
• DOI: 10.1016/j.apenergy.2015.12.061
• Languages: English
• ISSNs: 0306-2619

Abstract

Highlights: The zero-emission desalination systems are proposed. Performance of the single stage ZEDS is calculated. Double stage ZEDS is designed to improve the performance of the single stage system. Exergy analysis for the double stage ZEDS is achieved. Abstract: Huge energy consumption is always essential in large-scale desalination technology, and relevant adverse impact on the surroundings from the concentrated solution with high salinity is ignored. In the paper, a zero-emission desalination system (ZEDS), including the single stage and the multi-stage, based on mechanical vapor compression (MVC) is proposed. Mathematical models of the desalination system corresponding to the proposed ZEDS are established, and then energy and exergy analysis are achieved to investigate the performance of the desalination system. It is found that the MVC based desalination system is available to achieve the aim of zero-emission. The simulation results both from the energy and exergy analysis show that the design of the multi-stage ZEDS is beneficial to reduce the total compressor power compared to the single stage system although the profit magnitude will decrease with the increase of the stage number.