Open Access

ARTICLE

AN EXPERIMENTAL STUDY ON A NEW HIGH-EFFICIENT SUPERCHARGER FOR SEAWATER REVERSE OSMOSIS DESALINATION DRIVEN DIRECTLY BY TIDAL ENERGY

Changming Ling^a,b,*,†, Xiaobo Lou^c, Yin Zhong^b

a Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhanjiang, Guangdong Province, 524000, China
b School of Mechanical and Power Engineering, Guangdong Ocean University, Zhanjiang, Guangdong Province, 524000, China
c DongGuan Science & Technology School, Dongguan, Guangdong Province, 523470, China
* Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhangjiang, Guangdong Province, 524000, China
† Corresponding author. Email: ling-cm@163.com

Frontiers in Heat and Mass Transfer 2021, 16, 1-6. https://doi.org/10.5098/hmt.16.16

Abstract

To solve the issues of high-energetic consumption, high-cost and high-carbon emissions in the processes of reverse osmosis seawater desalination technology, this study proposed and implemented a tidal energy-gathering supercharger with the concept of using green tidal energy to directly produce high-pressure-seawater-driven reverse osmosis seawater desalination system. Compared with the traditional way of using tidal energy to produce electric power in order to produce high-pressure water for the system, this technology could save energy that may lost in two transferring process thus can improve the energy efficiency of the whole system, lower its running cost, and realize the green production concept of zero carbon emission. To study the differences of influences on energy-gathering supercharger caused between two types of tidal energy usage, comparison had been made under conditions of fixed work seawater flow and fixed-work seawater circuit opening adjustment. The results show that compared with the traditional tidal energy-driven electricity generation, adaptive-frequency and high-efficient energy-gathering supercharge experimental system that suits tidal changes can increase the use efficiency of tidal energy, make energy-gathering supercharger absorb more tidal energy thus produce more high-pressure water.

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