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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
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  • : 연속간행물
  • : 격월
  • : 1738-7264
  • : 2288-7407
  • : 수소에너지(~2001)→한국수소 및 신에너지학회논문집(2002~)

수록정보
수록범위 : 13권1호(2002)~30권4호(2019) |수록논문 수 : 1,269
한국수소 및 신에너지학회논문집
30권4호(2019년 08월) 수록논문
최근 권호 논문
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KCI등재

1초임계 이산화탄소를 활용한 발전에 대한 연구

저자 : 노상균 ( Sanggyun Noh )

발행기관 : 한국수소및신에너지학회(구 한국수소에너지학회) 간행물 : 한국수소 및 신에너지학회논문집 30권 4호 발행 연도 : 2019 페이지 : pp. 297-302 (6 pages)

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In this paper, the power generation efficiency increase has been studied for a Rankine cycle using both supercritical carbon dioxide as a working fluid and LNG as a coolant with PRO/II with PROVISION release 10.0 from Aveva company. Peng-Robinson equation of the state model with Twu's alpha function was selected for the modeling of the power generation cycle using LNG cold heat. Power generation efficiency was increased from 24.82% to 57.76% when using LNG as a coolant for supercritical carbon dioxide power generation cycle.

KCI등재

2연료 재순환 이젝터를 이용한 연료전지-폐기물 기반 가역 고체 산화물 연료전지의 최적 설계

저자 : 잡반티엔 ( Van-tien Giap ) , 이영덕 ( Young Duk Lee ) , 김영상 ( Young Sang Kim ) , 쿠엔 ( Thai Quyen Quach ) , 안국영 ( Kook Young Ahn )

발행기관 : 한국수소및신에너지학회(구 한국수소에너지학회) 간행물 : 한국수소 및 신에너지학회논문집 30권 4호 발행 연도 : 2019 페이지 : pp. 303-311 (9 pages)

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Reversible solid oxide fuel cell (RSOFC) has become a prospective device for energy storage and hydrogen production. Many studies have been conducted around the world focusing on system efficiency improvement and realization. The system should have not only high efficiency but also a certain level of simplicity for stable operation. External waste steam utilization was proved to remarkably increase the efficiency at solid oxide electrolysis system. In this study, RSOFC system coupled with waste steam was proposed and optimized in term of simplicity and efficiency. Ejector for fuel recirculation is selected due to its simple design and high stability. Three system configurations using ejector for fuel recirculation were investigated for performance of design condition. In parametric study, the system efficiencies at different current density were analyzed. The system configurations were simulated using validated lumped model in EBSILON® program. The system components, balance of plants, were designed to work in both electrolysis and fuel cell modes, and their off-design characteristics were taken into account. The base case calculation shows that, the system with suction pump results in slightly lower efficiency but stack can be operated more stable with same inlet pressure of fuel and air electrode.

KCI등재

3기체-고체 유동층에서 루프실의 형상이 고체순환에 미치는 영향

저자 : 류호정 ( Ho-jung Ryu ) , 조성호 ( Sung-ho Jo ) , 이승용 ( Seung-yong Lee ) , 이도연 ( Doyeon Lee ) , 남형석 ( Hyungseok Nam ) , 황병욱 ( Byung Wook Hwang ) , 김하나 ( Hana Kim ) , 원유섭 ( Yoo Seob Won ) , 김정환 ( Junghwan Kim ) , 백점인 ( Jeom-in Baek )

발행기관 : 한국수소및신에너지학회(구 한국수소에너지학회) 간행물 : 한국수소 및 신에너지학회논문집 30권 4호 발행 연도 : 2019 페이지 : pp. 312-319 (8 pages)

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Effect of loop seal geometry on solid circulation characteristics was investigated with two different types of upper loop seals and lower loop seals in a gas-solid fluidized bed system. Upper loop seal which has a wide gap between solid intake and outlet parts requires more fluidization gas to maintain smooth solid circulation. Moreover, the lower loop seal which has a wide gap requires more fluidization gas to achieve the same solid circulation rate. These results can be explained by results of minimum fluidization velocity in the lower loop seals. Consequently, if a loop seal has a wide gap between solid intake and outlet parts, more fluidization gases should be fed to ensure enough solid circulation rate and smooth solid circulation.

KCI등재

4가압순산소 연소 조건에서 균일 CO/H2/NO의 화학적 특성에 관한 해석 연구

저자 : 김동희 ( Donghee Kim ) , 안형준 ( Hyungjun Ahn ) , 허강열 ( Kang Y. Huh ) , 이영재 ( Youngjae Lee )

발행기관 : 한국수소및신에너지학회(구 한국수소에너지학회) 간행물 : 한국수소 및 신에너지학회논문집 30권 4호 발행 연도 : 2019 페이지 : pp. 320-329 (10 pages)

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This study was performed by the numerical approach to investigate chemical behaviors of homogeneous syngas (CO/H2) with nitric monoxide (NO) in pressurized oxy-fuel conditions. Hydrogen had a dominant effect to the ignition delay time of syngas due to the fast chemistry of its oxidation. Combustion was promoted by NO at the low temperature region. It was by the additional heat release through NO oxidation and production and consumption of major radicals related to the ignition. Two stage ignition behavior was shown in the pressurized condition by the accumulation of H2O2 produced from HO2 radical. Additional NO oxidation was induced by the pressurized oxy-fuel condition to produce NO2.

KCI등재

5기체-고체 유동층에서 사이클론과 프리보드의 형상이 고체 비산 손실에 미치는 영향

저자 : 류호정 ( Ho-jung Ryu ) , 조성호 ( Sung-ho Jo ) , 이승용 ( Seung-yong Lee ) , 이도연 ( Doyeon Lee ) , 남형석 ( Hyungseok Nam ) , 황병욱 ( Byung Wook Hwang ) , 김하나 ( Hana Kim ) , 원유섭 ( Yoo Seob Won ) , 김정환 ( Junghwan Kim ) , 백점인 ( Jeom-in Baek )

발행기관 : 한국수소및신에너지학회(구 한국수소에너지학회) 간행물 : 한국수소 및 신에너지학회논문집 30권 4호 발행 연도 : 2019 페이지 : pp. 330-337 (8 pages)

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Effects of cyclone and freeboard geometry on solid entrainment loss were investigated with two different types of cyclones and bubbling beds in a gas-solid fluidized bed system. The solid entrainment loss was measured by collected fines during continuous solid circulation condition. Bubbling bed which has an expanded freeboard showed less solid entrainment than the bubbling bed which has a straight freeboard. The cyclone which has a wide gas-solid mixture inlet showed less solid entrainment loss than the cyclone which has a narrow gas-solid mixture inlet. Moreover, the cyclone has a wide gas-solid mixture inlet can capture smaller particles.

KCI등재

6Type 2 고압용기 권선용 금속선재에 관한 연구

저자 : 한진목 ( Jinmook Han ) , 최수광 ( Sookwang Choi ) , 이성희 ( Sunghee Lee ) , 조경철 ( Kyungchul Cho ) , 황철민 ( Chulmin Hwang ) , 정영관 ( Younguan Jung )

발행기관 : 한국수소및신에너지학회(구 한국수소에너지학회) 간행물 : 한국수소 및 신에너지학회논문집 30권 4호 발행 연도 : 2019 페이지 : pp. 338-346 (9 pages)

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During last years, hydrogen refueling infrastructure test and devices research for hydrogen station presented a significant growth consisting of the commercialization of fuel cell electric vehicles (FCEVs). However, we still have many challenges for making commercial hydrogen stations such as increased safety and cost reduction. This study demonstrates the low cost hydrogen storage tank (type 2) and effective winding method for high pressure hydrogen storage. We use numerical analysis to verify stress changes inside the wire according to the winding condition. Also liner size, winding wire size and wire tension were studied for the safety and cost down. Results show that the stress of winding wire decreased with increased winding angle and increased the liner diameter. On the other hand, the stress of winding wire increased according to the increased wire thickness and tension.

KCI등재

7순산소연소 이산화탄소 포집을 적용한 석탄가스화 복합화력 발전시스템에서 산소공급방식 변경에 의한 효율향상 분석

저자 : 조연우 ( Yeon Woo Cho ) , 안지호 ( Ji Ho Ahn ) , 김동섭 ( Tong Seop Kim )

발행기관 : 한국수소및신에너지학회(구 한국수소에너지학회) 간행물 : 한국수소 및 신에너지학회논문집 30권 4호 발행 연도 : 2019 페이지 : pp. 347-355 (9 pages)

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As a solution to the growing concern on the global warming, researches are being actively carried out to apply carbon dioxide capture and storage technology to power generation systems. In this study, the integrated gasification combined cycle (IGCC) adopting oxy-combustion carbon capture was modeled and the effect of replacing the conventional air separation unit (ASU) with the ion transport membrane (ITM) on the net system efficiency was analyzed. The ITM-based system was predicted to consume less net auxiliary power owing to an additional nitrogen expander. Even with a regular pressure ratio which is 21, the ITM-based system would provide a higher net efficiency than the optimized ASU-based system which should be designed with a very high pressure ratio around 90. The optimal net efficiency of the ITM-based system is more than 3% higher than that of the ASU-based system. The influence of the operating pressure and temperature of the ITM on system efficiency was predicted to be marginal.

KCI등재

8창원 수소충전소의 수소판매량 분석

저자 : 강부민 ( Boo Min Kang ) , 강영택 ( Young Taec Kang ) , 이상현 ( Sang Hyun Lee ) , 김남석 ( Nam Seok Kim ) , 이경은 ( Kyeong Eun Yi ) , 박민주 ( Min-ju Park ) , 정창훈 ( Chang-hoon Jeong ) , 정대운 ( Dae-woon Jeong )

발행기관 : 한국수소및신에너지학회(구 한국수소에너지학회) 간행물 : 한국수소 및 신에너지학회논문집 30권 4호 발행 연도 : 2019 페이지 : pp. 356-361 (6 pages)

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Since the government announced the roadmap to revitalize the hydrogen economy, we are constantly making the effort to expand the use of fuel cell electric vehicles (FCEV) and hydrogen charging stations. There is however a significant issue to build and operate the hydrogen charging station due to the lack of the profit model. Many researchers believe that the supply of FCEV will be increased in the near future and finally ensure the economy of hydrogen charging stations. This study shows that the sales changes of hydrogen gas and consumption patterns by the operation of the hydrogen charging station in Changwon City. The results will be used as the evidence to support for operating the hydrogen charging station by private businesses and the validity of additional establishment of hydrogen charging stations.

KCI등재

9전기자동차 시장 및 배터리 관련 기술 연구 동향

저자 : 김양화 ( Yanghwa Kim ) , 임재완 ( Jaewan Lim ) , 박규열 ( Gyuyeol Park ) , 임옥택 ( Ock Taeck Lim )

발행기관 : 한국수소및신에너지학회(구 한국수소에너지학회) 간행물 : 한국수소 및 신에너지학회논문집 30권 4호 발행 연도 : 2019 페이지 : pp. 362-368 (7 pages)

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Electric vehicles contribute greatly to energy conservation, CO2 reduction and energy security through high fuel economy and various electric sources. Electric cars have a huge economic impact. More than 14 million hybrid electric cars have been sold worldwide. More than 3 million plug-in electric vehicles have been sold worldwide. The environmental impact depends greatly on the amount of national power generation, and as the electric grid becomes more and more carbon-intensive, countries are increasingly adopting hybrid and electric vehicles. Electricity is expanding beyond cars. Electric buses, trucks, and ships have similar benefits.

KCI등재

10HFC32 냉매를 사용한 지열원 히트펌프의 성능 특성

저자 : 박용정 ( Yong-jung Park ) , 박병덕 ( Byung-duck Park )

발행기관 : 한국수소및신에너지학회(구 한국수소에너지학회) 간행물 : 한국수소 및 신에너지학회논문집 30권 4호 발행 연도 : 2019 페이지 : pp. 369-375 (7 pages)

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Air conditioners adopting high energy efficiency and low global warming potential (GWP) refrigerant are being developed globally. In case of commercial air conditioner, R32 with lower GWP than R410A is attracting industrial attentions. In this study, the performance of water-to-water geothermal heat pump adopting R32 is compared with that of the heat pump using R410A. By using R32 instead of R410A, heating capacity and COP in heating standard condition can be increased by 8.8% and 6.3% respectively. Also, cooling capacity and COP in cooling standard condition can be increased by 5.3% and 3.1% respectively by using R32. But in case of using R32, systemic improvements are required to decrease discharge temperature of compressor since discharge temperature rises abnormally in heating operations.

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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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