http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
연구로 2호기 중성자 조사 흑연의 Wigner 에너지 방출 특성 연구
정경환,윤세훈,이동규,정종헌,이근우,Jeong Gyeong-Hwan,Yun Sei-Hun,Lee Dong-Gyu,Jung Chong-Hun,Lee Keun-Woo 한국방사성폐기물학회 2006 방사성폐기물학회지 Vol.4 No.3
Characteristics of heat release process, while the Wigner energy was drawn off the graphite during DSC(Differential Scanning Calorimenter) measurement as an example of annealing process which is one of release methods of Wigner energy that is contained in the irradiated graphite, was studied. Linear temperature rise method in DSC operation was selected to estimate the total Wigner energy content and the heat release rate of each graphite samples, which were located in several positions in the thermal column in KRR-2 research reactor. As an annealing process in DSC operation Wigner energy of the irradiated graphite samples were totally released by heat supplying to the graphite from room temperature to $500^{\circ}C$, in DSC. Characteristics of Wigner energy release from the graphite sample was well correlated with the various activation energy model of the kinetic equation.
송규민 ( Kyu Min Song ),윤세훈 ( Sei Hun Yun ),정흥석 ( Hong Suk Chung ),장민호 ( Min Ho Chang ),강현구 ( Hyun Goo Kang ),조승연 ( Seung Yen Cho ),구대서 ( Dae Seo Koo ),정도연 ( Do Yeon Jeong ),정동유 ( Dong You Jung ) 한국공업화학회 2010 응용화학 Vol.14 No.1
A rectangular type-bed of tritium storage was designed, fabricated and inspected. The storage bed was fabricated by brazing the tray plate, heater tube and helium loop. Brazing enables improved heat transfer for heating and cooling the plates. Feed through connections of the heater line and thermocouple line of the primary vessel enable the prevention of tritium leakage into the secondary vessel. The circumferential thermal reflectors and circular plate-type thermal reflectors for the primary vessel were fabricated to reduce heat transfer from the primary vessel to the secondary vessel, and thermal loss. Vacuum & leak inspections on the primary & secondary vessels for the fabricated rectangular tray-type bed were performed. These results were proved to have no leaks on the tubes of the primary & secondary vessels.
송규민 ( Kyu Min Song ),손순환 ( Soon Hwan Sohn ),정홍석 ( Hong Suk Chung ),윤세훈 ( Sei Hun Yun ),정기정 ( Ki Jung Jung ) 한국화학공학회 2012 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.50 No.4
국제핵융합실험로(ITER)가 2019년까지 7개국의 공동개발사업으로 건설될 예정이다. ITER의 핵융합연료주기는 핵 융합진공용기, 삼중수소 플랜트, 연료공급부로 구성되어 있다. 이중에서 삼중수소 플랜트는 핵융합연료주기를 위한 중 수소와 삼중수소의 저장, 공급, 분리, 제거, 회수 등의 기능을 제공한다. 삼중수소 플랜트는 외부에서 중수소와 삼중수소를 공급받아 저장·공급하는 SDS, 토카막배출처리의 TEP, 수소동위원소 분리의 ISS, 삼중수소수 및 대기 처리의 WDS·ADS, 정성·정량분석의 ANS 등으로 구성된다. 이 논문에서는 삼중수소 플랜트를 구성하는 주요 공정에 대한 기 능 및 설계요건을 기술하였다. 한국은 SDS 개발에 참여하고 있으며 월성원전 삼중수소 제거설비(WTRF) 건설 및 운전경험을 통해 WDS 대한 기술을 일부 확보하였다. 향후 ISS 및 TEP에 대한 기술확보를 위한 여러 분야에서의 참여 확대를 기대하고 있다. International Thermonuclear Experimental Reactor (ITER) will be constructed in 2019 according to the JIA (Joint Implementation Agreement) of 7 countries. The ITER fusion fuel cycle consists of fusion vacuum vessel, tritium plant and fuelling system. The tritium plant provides the functions of storage, delivery, separation, removal and recovery of the deuterium and tritium used as fusion fuels for the ITER. The tritium plant systems supply deuterium and tritium from external sources and treat all tritiated fluids from ITER operation through Storage and Delivery System (SDS), Tokamak Exhaust Processing (TEP), Isotope Separation System (ISS), Water Detritiation System & Atmosphere Detritiation System (WDS & ADS) and Analysis System (ANS). In this paper, the functions and design requirements of the major systems in the tritium plant and the status of R&D are described. Korean party is developing the SDS for ITER tritium plant and partially attaining the WDS technology through the construction and operation experience of the Wolsong Tritium Removal Facility (WTRF). Now it is expected that researchers in other fields such as chemical engineering take part in the development of upcoming technologies for ISS and TEP.
핵융합 배가스 중 CQ<sub>4</sub>와 Q<sub>2</sub>O 처리공정 제안 및 HAZOP 분석
정우찬 ( Woo-chan Jung ),정필갑 ( Pil-kap Jung ),김정원 ( Joung-won Kim ),문흥만 ( Hung-man Moon ),장민호 ( Min-ho Chang ),윤세훈 ( Sei-hun Yun ),우인성 ( In-sung Woo ) 한국화학공학회 2018 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.56 No.2
본 연구는 핵융합 배가스 중 삼중수소가 포함된 화합물인 메탄(CQ<sub>4</sub>) 및 물(Q<sub>2</sub>O)로부터 수소동위원소를 회수하기 위한 공정에 관한 것이다(Q는 수소, 중수소, 삼중수소). 수증기-메탄 개질반응과 수성가스 전환반응을 이용하여 CQ<sub>4</sub>와 Q<sub>2</sub>O를 Q<sub>2</sub>로 변환시키고, 후속하는 팔라듐 분리막으로 생성된 Q<sub>2</sub>를 회수한다. 본 연구에서는 CQ<sub>4</sub> 및 Q<sub>2</sub>O 중 하나의 물질인 CH<sub>4</sub> 및 H<sub>2</sub>O로부터 수소 회수를 위해 촉매반응기, 팔라듐 분리막, 순환펌프로 구성된 순환루프를 적용하였다. 촉매반응온도 및 순환유량을 변화시켜가며 CH<sub>4</sub> 및 H<sub>2</sub>O의 전환율을 측정하였다. CH<sub>4</sub> 중 수소 회수는 촉매반응온도 650 ℃, 순환유량 2.0 L/min 조건에서 99% 이상의 CH<sub>4</sub> 전환율을 확인하였고, H<sub>2</sub>O 중 수소 회수는 촉매반응온도 375 ℃, 순환유량 1.8 L/min 조건에서 96% 이상의 H<sub>2</sub>O 전환율을 확인하였다. 이와 더불어, 향후 핵융합 실증로(K-DEMO)에서의 CQ<sub>4</sub> 발생량을 예측하고, 이에 대한 처리공정을 제안하였으며, HAZOP (Hazard and Operability) 분석을 실시하여 공정의 위험요소와 운전상의 문제점을 도출하고 해결방안을 제시하였다. This study deals with a process for the recovery of hydrogen isotopes from methane (CQ<sub>4</sub>) and water (Q<sub>2</sub>O) containing tritium in the nuclear fusion exhaust gas (Q is Hydrogen, Deuterium, Tritium). Steam Methane Reforming and Water Gas Shift reactions are used to convert CQ<sub>4</sub> and Q<sub>2</sub>O to Q<sub>2</sub> and the produced Q<sub>2</sub> is recovered by the subsequent Pd membrane. In this study, one circulation loop consisting of catalytic reactor, Pd membrane, and circulation pump was applied to recover H components from CH<sub>4</sub> and H<sub>2</sub>O, one of CQ<sub>4</sub> and Q<sub>2</sub>O. The conversion of CH<sub>4</sub> and H<sub>2</sub>O was measured by varying the catalytic reaction temperature and the circulating flow rate. CH<sub>4</sub> conversion was 99% or more at the catalytic reaction temperature of 650 ℃ and the circulating flow rate of 2.0 L/min. H<sub>2</sub>O conversion was 96% or more at the catalytic reaction temperature of 375 ℃ and the circulating flow rate of 1.8 L/min. In addition, the amount of CQ<sub>4</sub> generated by Korean Demonstration Fusion Power Plant (K-DEMO) in the future was predicted. Then, the treatment process for the CQ<sub>4</sub> was proposed and HAZOP (hazard and operability) analysis was conducted to identify the risk factors and operation problems of the process.
NAC-5의 Sensitizer로서의 정량적 감광특성 연구
윤세훈,오성상,이의수 한국공업화학회 2003 응용화학 Vol.7 No.1
NAC-5(Naphthoquinone-1,2-diazide sulfonyl chloride), as an additive,was applied to enhance the photosensitive rate in composing a positive type of photoresist with naphthoquinone diazide derivative. Quantitative unit of energy absorotion of NAC-5 based on molar weight using 365 nm optical pattern generator was measured to estimate the availability as a role of photoinitiator or an improvement agent for photochemical reaction. Comparing with the ester compound of NAC-5 with THBP(trihydroxybenzophenone) the rate of energy absorption of NAC-5 in the given range of UV light exposure was greater then that of THBP-ester of naphthoquinone diazide. Conclusively, NAC-5 was regarded as superior in photosensitivity.
신나믹산과 수용성 섬유소 반응에서의 알콜 가용매 분해 반응 연구
김영택,윤세훈,오성상,이의수 한국공업화학회 2004 응용화학 Vol.8 No.1
Solvolysis reaction was observed to proceed the esterification of cinnamoyl chloride and water-based cellulose reaction system. A negative type photoresist might be produced including a side product of HCl, in theory. Ethyl alcohol(or methyl alcohol) was added to intermix the two separated reactant solutions which were composed of a reactant and a solvent in each liquid phase, i.e., cinnamoyl chloride in toluene and HEC(hydroxyethyl cellulose) in water. As a result, a negative type photoresist was obtained and some amount of solvolysis was inevitable.