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Experimental Study for the Development of New Type Water Ejector  

Mun, Soo-Bum (국립군산대학교 실습선)
Choi, Hyun-Kue (해양경찰청 오염방제과)
Choi, Jae-Hyuk (한국원자력연구소 원자력수소사업추진반)
Kwon, Hyung-Jung (동의과학대학 컴퓨터응용기계계열)
Kim, Kyung-Keun (한국행양대학교 해사대학 기관시스템공학부)
Choi, Soon-Ho (한국해양대학교)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.30, no.6, 2006 , pp. 677-684 More about this Journal
Abstract
An ejector is a fluid transfer device to be used for mixing of fluids, maintaining vacuum, and overcoming a poor suction condition. To date, most ejectors have been made from the casting process. which is time-consuming and high-cost process. Therefore, a new production method of ejectors is desired if any. In this experimental study, we proposed a new type ejector manufactured from the commercial fitting materials and the welding process, which is equipped with an orifice type nozzle. The proposed ejector has a good integrity compared with the conventional ejector because the fittings have manufactured by forging and they have more strength than the casting materials. Furthermore we adopted a multi-opening orifice type nozzle for improving a suction capacity and compared with a single-opening orifice type nozzle. From the experimental results. we confirmed that the multi-opening nozzle had a food suction capacity than the single-opening nozzle and the proposed new type ejector showed higher vacuum than the conventional type ejector in non-load condition. These improved characteristics suggests that a new type ejector by using the commercial fittings opens the feasibility to be adopted in various industry fields and that the increased suction capacity can be achieved by altering the nozzle design of a conventional ejector.
Keywords
Cavitation; Commercial fitting; Ejector; Multi-opening nozzle; Orifice type nozzle; Single-opening nozzle;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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