유공압시스템학회논문집 (Transactions of The Korea Fluid Power Systems Society)
- 제4권3호
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- Pages.7-12
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- 2007
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- 1738-3315(pISSN)
정수압방식 동력회수장치의 구동동력 절감량 해석
An analysis on power regeneration of hydrostatic pressure exchanger
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함영복
(한국기계연구원 나노기계연구본부) ;
-
최준혁
(한국기계연구원 나노기계연구본부) ;
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정헌술
(군산대학교 기계공학부) ;
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박상진
(한국기계연구원 에너지기계연구본부) ;
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박중호
(한국기계연구원 나노기계연구본부) ;
-
윤소남
(한국기계연구원 나노기계연구본부)
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Ham, Y.B.
;
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Choi, J.H.
;
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Jeong, H.S.
;
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Park, S.J.
;
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Park, J.H.
;
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Yun, S.N.
- 발행 : 2007.09.01
초록
This paper presents an energy saving hydrostatic pressure exchanger for sea water desalination equipment. In a reverse osmosis(RO) system for desalinating sea water, more than 70 percent of the supplied sea water, brines which were impassable through RO membrane are bypassed, resulting in high energy losses. In this paper, a hydrostatic pressure exchanger consisting of an embedded water hydraulic piston motor and a water hydraulic piston pump was proposed and investigated in order to recover the energy of the bypassed brines. The pressurized brines are supplied to the embedded water hydraulic piston motor as power sources and the water hydraulic piston pump is driven by the output torque of the embedded water hydraulic piston motor as well as electric motor. Consequently, the energy of the bypassed brines can be recovered. To examine the electric energy saving characteristics of the hydrostatic pressure exchanger, a simulation model was constructed using commercial software and experiments were conducted. Through the results of simulation and experiment, the feasibility of the electric energy saving effect of the proposed hydrostatic pressure exchanger was investigated.
키워드