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한국수소및신에너지학회(구 한국수소에너지학회)> 한국수소 및 신에너지학회논문집

한국수소 및 신에너지학회논문집 update

Transactions of the Korean Hydrogen and Energy Society

  • : 한국수소및신에너지학회(구 한국수소에너지학회)
  • : 공학분야  >  화학공학
  • : KCI등재
  • :
  • : 연속간행물
  • : 격월
  • : 1738-7264
  • : 2288-7407
  • : 수소에너지(~2001)→한국수소 및 신에너지학회논문집(2002~)

수록정보
수록범위 : 13권1호(2002)~30권3호(2019) |수록논문 수 : 1,258
한국수소 및 신에너지학회논문집
30권3호(2019년 06월) 수록논문
최근 권호 논문
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KCI등재

1콜로이드법으로 합성한 RuO2 전극촉매의 연구

저자 : 박진남 ( Jin-nam Park )

발행기관 : 한국수소및신에너지학회(구 한국수소에너지학회) 간행물 : 한국수소 및 신에너지학회논문집 30권 3호 발행 연도 : 2019 페이지 : pp. 193-200 (8 pages)

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RuO2, PtO2, and various (Ru,Pt)O2 colloidal solution were prepared using modified Watanabe method. Electrodes were manufactured by dipping of Ni mesh into the colloidal solution. Manufactured electrodes were characterized by XRD, SEM, and EDS. (Ru,Pt)O2 electrodes showed RuO2 crystal structure and high roughness. The hydrogen evolution reaction (HER) activities were evaluated by Linear Sweep Voltammetry. 1Ru2Pt electrode showed similar activity with commercial electrode, HER potentials are -0.9 V for both.

KCI등재

2메탄올 연료 개질 플랜트의 다단연소기 시동 전략

저자 : 지현진 ( Hyunjin Ji ) , 백경돈 ( Kyungdon Baik ) , 양성호 ( Sungho Yang ) , 정승교 ( Seungkyo Jung )

발행기관 : 한국수소및신에너지학회(구 한국수소에너지학회) 간행물 : 한국수소 및 신에너지학회논문집 30권 3호 발행 연도 : 2019 페이지 : pp. 201-208 (8 pages)

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Recently, a fuel reforming plant for supplying high purity hydrogen is being applied to submarines. Since steam reforming is an endothermic reaction, it is necessary to continuously supply heat to the reactor. A fuel reforming plant for a submarine needs a multi-stage burner (MSB) to acquire heat and convert the combustion gas to CO2+H2O. The MSB has problems that the combustion imbalance occurs during start-up due to the temperature restriction of the combustion gas. This problems can be solved by burning H2O together with fuel and O2. In this study, the simulation results of MSB were analyzed to determine the optimum flow rate of H2O supplied to the 6-stage burner. When the flow rate of H2O was low, combustion was concentrated on the burner#6 in comparison with the burner#1-#5. This combustion concentration improved as the supply amount of H2O increased. As a results, it was necessary to supply at least 4.9 kmol/h of H2O (per 1 kmol/h of fuel) to burner#1 in order to maintain the combustion gas temperature of each stage at 750℃ and to convert the final stage burner gas composition to CO2+H2O.

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Methanol is a liquid fuel which could also be produced from renewable energy sources and has appreciably high energy density. In this work, we investigated the application of Ce0.9Gd0.1O2-x supported Cu and Ni catalysts for hydrogen production via methanol steam reforming. Catalysts were synthesized by solution combustion synthesis. The prepared catalysts with various active materials and Cu loading amounts were tested in a reactor at 200-300℃, 0-5 barg range and steam to methanol molar ratio was 1.5. The catalytic properties of Cu and Ni were compared, and the catalytic performance was shown to depend on the amounts of metal loading and operating conditions such as reaction temperature and pressure.

KCI등재

4수소저장용 Mg-CaO-10 wt.% MWCNT 복합체의 물질 전과정 평가

저자 : 한정흠 ( Jeong-heum Han ) , 이영환 ( Young-hwan Lee ) , 유제선 ( Jae-seon Yu ) , 홍태환 ( Tae-whan Hong )

발행기관 : 한국수소및신에너지학회(구 한국수소에너지학회) 간행물 : 한국수소 및 신에너지학회논문집 30권 3호 발행 연도 : 2019 페이지 : pp. 220-226 (7 pages)

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Magnesium hydride has a high hydrogen storage capacity (7.6 wt.%), and is cheap and lightweight, thus advantageous as a hydrogen storage alloy. However, Mg-based hydrides undergo hydrogenation/dehydrogenation at high temperature and pressure due to their thermodynamic stability and high oxidation reactivity. MWCNTs exhibit prominent catalytic effect on the hydrogen storage properties of MgH2, weakening the interaction between Mg and H atoms and reducing the activation energy for nucleation of the metal phase by co-milling Mg with carbon nanotubes. Therefore, it is suggested that combining transition metals with carbon nanotubes as mixed dopants has a significant catalytic effect on the hydrogen storage properties of MgH2. In this study, Material life cycle evaluation was performed to analyze the environmental impact characteristics of Mg-CaO-10 wt.% MWCNTs composites manufacturing process. The software of material life cycle assessment (MLCA) was Gabi 6. Through this, environmental impact assessment was performed for each process.

KCI등재

5고분자 전해질 연료전지용 술폰화된 폴리(아릴렌 이써 설폰)/SPVdF-co-HFP 브렌딩 멤브레인의 제조 및 특성 분석

저자 : 박철진 ( Chul Jin Park ) , 김애란 ( Ae Rhan Kim ) , 유동진 ( Dong Jin Yoo )

발행기관 : 한국수소및신에너지학회(구 한국수소에너지학회) 간행물 : 한국수소 및 신에너지학회논문집 30권 3호 발행 연도 : 2019 페이지 : pp. 227-236 (10 pages)

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In this work, preparation and characterizations of hybrid membranes containing sulfonated poly(arylene ether sulfone) (SPES) and sulfonated poly(vinylidene fluoride-co-hexafluoropropylene) (SPVdF-co-HFP) (20, 30 or 40 wt%) were carried out. The structure of hybrid membranes was confirmed using X-ray diffraction (XRD) analysis and the Fourier transform infrared (FT-IR) spectroscopy. The prepared SPAES/SPVdF-30 membrane exhibits higher ionic conductivity of 68.9 mS/cm at 90℃ and 100% RH. Besides, the other studies showed that the hybrid membrane has good oxidation stability, thermal stability, and mechanical stability. Thus, we believe that the prepared hybrid membrane is suitable for the development of membranes for fuel cell applications.

KCI등재

6수소충전소용 프리쿨러를 위한 수소가스 냉각에 관한 연구

저자 : 이경한 ( Kyung-han Lee ) , 구경모 ( Kyung-mo Koo ) , 유철휘 ( Cheol-hwi Ryu ) , 황갑진 ( Gab-jin Hwang )

발행기관 : 한국수소및신에너지학회(구 한국수소에너지학회) 간행물 : 한국수소 및 신에너지학회논문집 30권 3호 발행 연도 : 2019 페이지 : pp. 237-242 (6 pages)

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In the hydrogen refueling station (HRS), it is need the pre-cooling system (PCS) to limit the inside temperature (85℃) of the onboard thank (700 bar) and to charge the hydrogen at short time (within 3 minutes) to fuel cell electric vehicle (FCEV). From those safety reasons, the temperature of hydrogen gas must be controled -33℃ to -40℃ in PCS. The cooling test of the gaseous (N2, He, H2) was carried out using heat exchanger (pre-cooler) by indirect cooling and direct cooling method. It was confirmed that the temperature of hydrogen gas had below -40℃ at below -75℃ of chiller temperature in direct cooling.

KCI등재

7CFD 툴을 활용한 패키지형 수소충전시스템의 안전성 향상 연구

저자 : 황순일 ( Soon-il Hwang ) , 강승규 ( Seung-kyu Kang ) , 허윤실 ( Yun-sil Huh )

발행기관 : 한국수소및신에너지학회(구 한국수소에너지학회) 간행물 : 한국수소 및 신에너지학회논문집 30권 3호 발행 연도 : 2019 페이지 : pp. 243-250 (8 pages)

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In this study, to ensure the safety of the packaged hydrogen refueling system, the improvement plan was derived by using 3-dimensional CFD program (FLACS). We also confirmed the effectiveness of risk reduction and the suitability of safety standard. By ventilation performance evaluation according to the position of the vent, it demonstrated that the vent should be installed at the ceiling to safely ventilate without stagnation of the leaked gas. In case of ventilation system according to KGS standard, risk situation could be resolved after about 5 minutes in the worst leaked condition. The result showed that jet fire and explosion inside the packaged system could affect the surrounding facilities. This proves that the standard for installing flame detectors, emergency shut down system and protection wall is appropriate.

KCI등재

8Scale Factor를 이용한 국내 천연가스 개질식 수소충전소의 규모의 경제 분석

저자 : 김봉진 ( Bongjin Gim ) , 윤왕래 ( Wang Lai Yoon ) , 서동주 ( Dong Joo Seo )

발행기관 : 한국수소및신에너지학회(구 한국수소에너지학회) 간행물 : 한국수소 및 신에너지학회논문집 30권 3호 발행 연도 : 2019 페이지 : pp. 251-259 (9 pages)

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The aim of this study is to evaluate the economic feasibility of domestic on-site steam methane reforming (SMR) hydrogen refueling stations. We evaluated the levelized cost of hydrogen (LCOH) for the SMR hydrogen refueling stations, which have production capacities of 100 kg/day (SMR 100), 200 kg/day (SMR 200), and 500 kg/day (SMR 500) utilizing the scale factor. The main results indicated that the LCOH of SMR 100, SMR 200, and SMR 500 were 14,367 won/kg, 11,122 won/kg, and 8,157 won/kg, if the utilizations of hydrogen stations were 70%. These results imply that the production capacity of the domestic SMR hydrogen station should be greater than 500 kg/day to compete with other hydrogen stations when we consider the current sale price of hydrogen at the hydrogen stations.

KCI등재

9미분탄 입자의 고속가열 열분해거동 해석

저자 : 장지훈 ( Jihoon Jang ) , 한가람 ( Karam Han ) , 유근실 ( Geun Sil Yu ) , 임현수 ( Hyeon Soo Lim ) , 이욱륜 ( Wook Ryun Lee ) , 박호영 ( Ho Young Park )

발행기관 : 한국수소및신에너지학회(구 한국수소에너지학회) 간행물 : 한국수소 및 신에너지학회논문집 30권 3호 발행 연도 : 2019 페이지 : pp. 260-268 (9 pages)

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The pyrolysis characteristics of pulverized coal particle was numerically analyzed with the drop tube furnace. Based on the simulated gas flow field in the drop tube furnace, the particle velocity, temperature and volatile evolution were calculated with the fourth order Runge-Kutta method. The effects of changes in reactor wall temperature and particle diameter on the pyrolysis behavior of coal particle were investigated. The particle heating rate was very sensitive to the reactor wall temperature and particle size, that is, the higher wall temperature and the smaller particle size resulted in the higher heating rate and the consequent quicker volatile evolution.

KCI등재

10기질에 따른 미생물 전해 전지-혐기성 소화의 미생물 군집 특성

저자 : 이채영 ( Chae-young Lee ) , 한선기 ( Sun-kee Han )

발행기관 : 한국수소및신에너지학회(구 한국수소에너지학회) 간행물 : 한국수소 및 신에너지학회논문집 30권 3호 발행 연도 : 2019 페이지 : pp. 269-275 (7 pages)

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This study was conducted to evaluate the microbial communities in coupled system of a microbial electrolysis cell and an anaerobic digestion. Glucose, butyric acid, propionic acid and acetic acid were used as substrates. The maximum methane production and methane production rate of propionic acid respectively were 327.9±6.7 mL CH4/g COD and 28.3±3.1 mL CH4/g COD·d, which were higher than others. Microbial communities' analyses indicated that acetoclastic methangens were predominant in all systems. But the proportion of hydrogenotrophic methanogens was higher in the system using propionic acid as a substrate when compared to others. In coupled system of a microbial electrolysis cell and anaerobic digestion, the methane production was higher as the distribution of hydrogen, which was generated by substrate degradation, and proportion of hydrogenotrophic methanogens was higher.

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1연안해역에서 석유오염물질의 세균학적 분해에 관한 연구

(2006)홍길동 외 1명심리학41회 피인용

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2미국의 비트코인 규제

(2006)홍길동심리학41회 피인용

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(2006)홍길동41회 피인용

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