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H-자형 이메소제닉 화합물; α,ω-Bis(2,5-bis(4-cyanophenoxy carbonyl)phenoxy)alkanes의 합성과 열방성 성질
박주훈,이환명,최옥병,이용섭,고경곤,이은상,송종혁,김기환,이은경,이창준,소봉근,이수민,Park, Ju-Hun,Lee, Hwan-Myeong,Choe, Ok-Byeong,Lee, Yong-Seop,Go, Gyeong-Gon,Lee, Eun-Sang,Song, Jong-Hyeok,Kim, Gi-Hwan,Lee, Eun-Gyeong,Lee, Chang-Jun,S 대한화학회 2006 대한화학회지 Vol.50 No.3
박주훈(Joo Hoon Park),강경준(Kyung Jun Kang),신유환(You Hwan Shin),김광호(Kwang Ho Kim),이윤표(Yoon Pyo Lee),정진택(Jin Taek Chung),김종성(Jong-Sung Kim) 한국유체기계학회 2009 유체기계 연구개발 발표회 논문집 Vol.2009 No.-
In this paper, quasi three-dimensional design method was used to develop for R134a centrifugal compressor included in ice storage system. The calculation in impeller passage was conducted by a combination of stream function of in hub-to-shroud and blade-to-blade. Compressor design conditions was determined from thermodynamic cycle analysis of ice storage system. In present development, interesting parameters for design were rotational speed, number of blade, swirl parameter and flow angle of impeller. The verification for designed compressor was carried out from three-dimensional Navier-Stokes analysis. The result of analysis is fairly matched with objective of design condition.
LNG 플랜트용 프로판 냉매 압축기 공력설계 및 수치해석
박주훈(J.H. Park),이원석(W.S Lee),강경준(K.J Kang),신유환(Y.H. Shin),이윤표(Y.P. Lee),김광호(K.H. Kim),정진택(J.T. Chung) 한국전산유체공학회 2010 한국전산유체공학회 학술대회논문집 Vol.2010 No.5
In this study, flow structure in a three-stage centrifugal compressor for LNG Plant with the refrigerant, Propane, was numerically investigated at the design point of the compressor using a commercial code. Flow characteristics in the passages of impeller and vaneless diffuser were analyzed in detail including velocity vector, Mach number and pressure contours in blade spanwise and meridional plane for each stage. The estimation on the one-dimensional output from the preliminary design and three-dimensional shape of the impeller blade was performed through the flow analysis. The verification for designed compressor was carried out from three-dimensional Navier-Stokes analysis. The results will be used as reference data for a new design of 3-D impeller shape to improve propane refrigerant compressor performance.
박주훈,최옥병,이환명,이진영,김성조,차은희,소봉근,손태화 호서대학교 기초과학연구소 2012 기초과학연구 논문집 Vol.20 No.1
물질의 제 4 상태로 알려진 액정화합물에 대한 연구는 1970 년대부터 2010 년에 이르러 폭발적으로 진행되고 있다. 과학적으로, 액정화합물은 화합물 합성의 한 장으로 자리매김을 하고 있고,특히 구조와 액정성 간의 상관관계를 규명하는데 일익을 담당하고 있다. 기술적으로 , 액정은 우리 생활의 중요한 일부분을 차지하고 있다 . 예를 들면,손목시계,계산기,컴퓨터를 포함한 모든 기기의 표시장치, 텔레비전,전자신문 및 정밀 프로젝션 기구에 사용되고 있다 . 따라서 본 연구에서는 다이에틸렌글리콜을 중간 유연격자로 사용하고 말단 알콕시 사슬길이를 헵틸기로 갖으며 , 메소젠기로 쉬 프베이스와 에스터기를 갖는 새로운 액정화합물인 l,2-bis(2-(4-(4_(4-heptyl oxybenzoyloxy)benzylideneamino)phenoxy)ethoxy)ethane을 합성하였고, 이들의 분자 구조와 액정성 간의 상관관계를 살펴보았다 .
국내 ETCS Level 2 열차제어시스템의 무선폐색센터 성능검증에 관한 연구
박주훈(Park, Ju Hun),지정근(Ji, Jeong Kun),김희식(Hie Sik Kim) 한국도시철도학회 2016 한국도시철도학회논문집 Vol.4 No.1
This paper includes laboratory establishment and test for performance verification of RBC(Radio Black Center) in Korea TECS level 2 train control system. The laboratory consists of LSU(local simulator unit), RBC, EVCSU(EVC simulator unit) and STU(safe transmission unit). In order to verify the performance of RBC, we should confirm that DMI(driver machine interface) display correct information on the screen. That information are generated by LSU and EVCSU, and transmitted to DMI through RBC. Also we should confirm that station information console and RBC supervision console display correct information (local, status, movement authority information). In this paper we establish a laboratory and verify performance of RBC by test using sequence. As a result, we can confirm that DMI, station information console and RBC supervision console display correct information on each screen.