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Chemcial Industry and Engineering 2012, Vol. 29 Issue (5) :48-52    DOI:
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Operating Characteristics of Rotary Pressure Exchanger for SWRO Desalination System
ZHANG  Jin-Xin1,2,3, WANG  Yue1,2,3, YANG  Yong-Jun1,2,3, CHENG  Bai-Hua1,2,3, XU  Shi-Chang1,2,3, WANG  Shi-Chang1,2,3
1.��School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China;��
 2.��Chemical Engineering Research Center, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China;��
3.��Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin University, Tianjin 300072, China

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Abstract The operation cost for seawater reverse osmosis system has been reduced greatly due to the rapid development and wide application of energy recovery device��ERD��in recent years.  In this article, a novel rotary pressure exchanger was designed and manufactured. The corresponding test platform was set up and the operating characteristics of the device were examined and analyzed��The results demonstrated that the device run steadily with a high energy recovery efficiency of 95.8%—97.7% under the capacity of 8.3 m3/h and operating pressure of 6.0 MPa. The device also presents good dynamic balance at rotation speed of 100—500 r/min. The minimum torque for driving the device is obtained at the rotation speed of 500 r/min, which is monitored to be 17—18 N·m.
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Articles by authors
ZHANG Jin-Xin
WANG Yue
YANG Yong-Jun
CHENG Bai-Hua
XU Shi-Chang
WANG Shi-Chang
Keywords�� reverse osmosis   seawater desalination   pressure exchanger   dynamic balance of the rotor     
Received 2012-04-24;
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Corresponding Authors: ��Խ���绰����022��27406889��E-mail��tdwy75@tju.edu.cn��     Email: tdwy75@tju.edu.cn
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ZHANG Jin-Xin, WANG Yue, YANG Yong-Jun, CHENG Bai-Hua, XU Shi-Chang, WANG Shi-Chang.Operating Characteristics of Rotary Pressure Exchanger for SWRO Desalination System[J]  Chemcial Industry and Engineering, 2012,V29(5): 48-52
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