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Research progress of the rotary energy recovery device
Authors： XU Enle1, 3, WANG Guanming2, FAN Meidan2, XIE Lefu3
Units： 1.College of Electro-mechanic Engineering, Qingdao University of Science and Technology, Qingdao 266000, China; 2. Xin Neng Feng Huang (Tengzhou) Energy Co. Ltd, Tengzhou 277500, China; 3. Weihai New Era Chemical Co. Ltd, Weihai 264200, China
KeyWords： rotary energy recovery device; seawater reverse osmosis system; mixing; rotor speed; energy recovery efficiency; flow fluctuation
ClassificationCode：TQ05
year,volume(issue):pagination： 2018,38(3):144-151

Abstract：
?The rotary energy recovery device (RERD) which is the typical example on the principle of positive displacement is one of the key facilities in the reduction of the operational cost in a seawater reverse osmosis system. This paper clarified the working principle of the RERD in detail. Four technical difficulties of RERD were concluded based on the working principle of the RERD which are the mixing, the rotor speed, the energy recovery efficiency and the service life, the flow fluctuation and the noise. The creative reason and the research solution about the four technical difficulties were discussed. The research status and development tendency to the enlargement and integration was illustrated. The research progress gives the direction for the fundamental research for the RERD and is the basis of RERD localization.

Funds：
山东省自然科学基金资助项目（ZR2017BEE043）；山东省高等学校科技计划项目（J17KA181）；青岛科技大学引进人才科研启动基金（010022769）

AuthorIntro：
许恩乐（1989-），男，山东济宁，博士，讲师，主要从事海水淡化能量回收装置的研发，*通讯作者，Email: xel360@126.com

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