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RISS 인기검색어
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- 저자 : 최병근(B.K. Choi) (검색결과 49 건)
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최병근(B. K. Choi),최창림(C. R. Choe),김효중(H. J. Kim),구동식(D. S. Gu),정한얼(H. Y. Jung) 한국유체기계학회 2005 유체기계 연구개발 발표회 논문집 Vol.- No.-
A few intake stations have vibration problems caused by pumps, motors and pipes. The vibration transffered from pumps, motors and pipes excites buiding severely. Therefore, the crack is generated on building wall and people who work at intake station are damaged. In this paper, the vibration and noise have been measured and analyzed for pumps, motors, pipes and building at intake station. Also, the cause of vibration and noise is identified. Finally, the reference of vibration and noise is established using results of measurement.
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cake-less 고농축 연속여과시스템의 연구개발 (3)
최희규(H. K Choi),정한식(H. S Chung),정효민(H. M Jeong),박원조(W. J. Park),최병근(B. K. Choi),JunIchiro Tsubaki 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.11
Filtration is fundamental unit operation aimed at the separation of solids from the suspension by means of porous medium that retains the solids and allows the liquid to pass. Cake filtration is widely used in industry to separate solid particles from suspension in liquid. When the cakes are used as products in actual field, the solid-liquid separation has some problem such as high concentration cake, contamination of flocculants and batch type process of filtration. In this study, it has been developed the high performance cake-less filtration system whose condensed slurry layer maintains fluidity. The development of this novel filtration system allowed us to be unnecessary the scrapping operation of cake as well as to collect the high condensed slurry with more easily. These results clearly show that the new device will be realized for the making high condensed and fluidity slurry. It could be confirmed that the concentration of condensed slurry achieved 35 vol% with slurry fluidity. It is demonstrated that if particles are well dispersed, condensed slurry by filtration can be drained without scraper. In our new filtration system (DECAFF system), the specification of the system and operation conditions can be determined from a pre-filtration test.
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김학은(H. E. Kim),최병근(B. K. Choi) 한국동력기계공학회 2005 동력시스템공학회지 Vol.9 No.2
Liquefied natural gas takes up six hundredths of the volume of natural gas, which makes storage and transportation much easier. To send out natural gas via a pipeline network across the nation, high-pressure LNG pumps supply highly compressed LNG to high-pressure vaporization facilities. The Number of high-pressure LNG pumps determined the send-out amount in LNG receiving terminal. So it is main equipment at LNG production process and should be maintained on best conditions. In this paper, to find out the cause of high beat vibration at cryogenic pumps, vibration and motor current signal analysis have been performed. High vibration of cryogenic pumps could be reduced due to the modification of motor rotor.
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