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수소 기술-경제체제로의 이행을 위한 장단기 시나리오 분석
최현도,박상욱,이민규 한국수소및신에너지학회 2005 한국수소 및 신에너지학회논문집 Vol.16 No.3
최근 수소에너지가 환경문제를 해결해 줄 수 있는 대체에너지로 각광받으면서 수소에너지의 사용이 가지고 올 새로운 에너지 체제에 대한 시나리오 연구가 다양하게 수행되고 있다. 수소 기술-경제체제의 가능한 시나리오를 제시하는 것은 미래 사회에서 수소가 에너지 운반체로서 담당하게 될 역할을 명확히 할 수 있음과 동시에 에너지라는 거대한 기술-경제체제의 변화를 위해 현재 수행해야 할 에너지 정책과 전략에 대해 큰 시사점을 줄 수 있기에 의미가 있다.본 연구는 수소의 생산, 저장 및 운반, 그리고 응용분야에서의 다양한 기술의 SWOT 분석을 통해 가능한 시나리오를 단기와 장기로 나누어 제시했다. 그 결과 앞으로의 수소 기술-경제체제의 구조는 기술적 완성도 뿐 아니라 사회적 수용성, 사회적 적응성 등 외부의 환경변화에도 많은 영향을 받음을 알았다. 그렇기 때문에 수소에너지에 관한 전략과 정책은 이러한 변동을 충분히 고려하면서 결정돼야 한다.
이성곤,GENTO MOGI,김종욱,신성철 한국수소및신에너지학회 2007 한국수소 및 신에너지학회논문집 Vol.18 No.2
The rapid changes of energy environment such as high oil price, united nations framework convention on climate change, and the hydrogen economy have been happening to provide national energy security in the 21st century, we need to build strategic approach for coping with energy environment. From a long-term viewpoint of energy technology development, it's time to develop energy technology with selection and specification. In this study, we build energy technology roadmap for establishing the hydrogen economy with a long-term strategy. We analyze economic spin-offs and commercial potential for establishing energy technology roadmap of energy technology development for establishing the hydrogen economy.
에너지효율향상의무화제도의 국내 도입을 위한 기반구축 연구 - 에너지수요관리제도 및 절감률 산정 중심으로 -
홍성준,최봉하,이덕기,박수억,원종률 한국수소및신에너지학회 2010 한국수소 및 신에너지학회논문집 Vol.21 No.3
An Energy Efficiency Resource Standards (EERS) is a simple, market-based mechanism to encourage more efficient generation, transmission, and use of electricity, natural gas and heat. An EERS consists of electric, gas and/or heating energy savings targets for utilities, often with flexibility to achieve the target through a market-based trading system. In this paper, we make persons acquainted with EERS programs of foreign countries in these days. And we analyze domestic energy demand side management (DSM) programs in order to introduce an EERS program into the country successfully. Energy efficiency potential calculated in 2007 is one of the important factors for establishing an EERS program domestically. This study may provide basic data to set the amount of energy saving when an EERS program would be phased in.
수소에너지의 승용차부문 도입에 따른 CO₂ 배출 감축 및 비용효과 분석 연구
홍종철,강승진,최상진,박상용,김종욱 한국수소및신에너지학회 2009 한국수소 및 신에너지학회논문집 Vol.20 No.1
As one of the alternative solution for energy and environmental issues such as climate change, energy security, oil price, etc., hydrogen energy has been getting so much attentions these days. This paper analyzed the CO2 emission, costs, and energy consumptions when the hydrogen energy was introduced to transportation, specifically in Sedan sector using the energy system model, MARKAL. As results, 21.5% of CO2 emission in 2040 could be reduced and additional 76 billion dollars will be needed in the high energy price scenario. The amount of energy saving mainly due to the replacement of existing car to hydrogen vehicle was 16% of the final energy consumption in 2040.
임희수,이종태,김윤영 한국수소및신에너지학회 2004 한국수소 및 신에너지학회논문집 Vol.15 No.2
A heavy duty hydrogen enriched CNG engine has the possibility to obtain stable operation at ultra lean condition and to reduce emission extremely. And it can also serve as a so called bridge technology between the current fossil fueled engine and the future hydrogen power system. The emission, torque and brake thermal efficiency characteristics of a heavy-duty hydrogen-CNG engine were investigated to determine the proper mixing rate of hydrogen and CNG. It was found that the proper mixing rates at λ =1.4 and λ=1.6 were around 20% and 30% for hydrogen addition rate respectively.
직접 수소화붕소나트륨/과산화수소 연료전지를 위한 니켈 기반 촉매
오택현 한국수소및신에너지학회 2020 한국수소 및 신에너지학회논문집 Vol.31 No.6
Nickel-based bimetallic catalysts were investigated for use in direct borohydride/hydrogen peroxide fuel cells. For anode and cathode, PdNi and AuNi catalysts were used, respectively. Nickel-based bimetallic catalysts have been investigated through various methods, such as inductively coupled plasma optical emission spectroscopy, transmission electron microscopy, scanning electron microscopy, and energy dispersive spectroscopy. The performance of the catalysts was evaluated through fuel cell tests. The maximum power density of the fuel cell with nickel-based bimetallic catalysts was found to be higher than that of the fuel cell with the monometallic catalysts. The nickel-based bimetallic catalysts also exhibited a stable performance up to 60 minutes.
NiFe2O4 금속산화물의 열화학싸이클에 의한 물분해 수소생산기술
한상범,강태범,주오심,정광덕 한국수소및신에너지학회 2008 한국수소 및 신에너지학회논문집 Vol.19 No.2
금속산화물의 열화학싸이클에 의한 수소생산 소재중 안정성이 우수하고 물분해 수소생산능이 비교적 우수한 NiFe2O4를 합성하여 열화학수소생산공정 적용시 최적화의 조건에 대하여 검토하였다1). 합성한 NiFe2O4는 격자상수가 8.34 Å이었고, 뫼스바우어에 의해 구조는 Ni이 페라이트 구조인 AB2O의 B위치에 주로 위치하는, A 및 B의 상대적 흡수강도가 57.9:42.1인 역스피넬구조를 보이고 있다. 이러한 구조의 NiFe2O4의 열적환원은 610 oC부터 시작하여 1200 oC에 이르는 동안 약 1.1 wt%의 무게감소가 관찰된다. 물에 의한 산화과정에서 수소가 발생하게 되는데, 1200 oC이하의 환원온도에서 가능한 수소생산량은 약 0.45 cm3/gcycle 이었다. 산화환원의 반복과정에서 NiFe2O4의 XRD에 의한 구조변화는 관찰되지 않아 매우 안정한 구조를 갖는다는 것을 보여주었다. 수소생산을 위한 무게당 싸이클당 수소생산양은 산화환원과정의 온도범위가 가장 중요하였고 물의 접촉시간은 중요한 요소가 되지 않았다. 열적 환원과정에서 많은 양의 수소생산성능을 보이기 위해서는 1200 oC이상의 고온을 필요로 하는 것을 보여주었다.
박소진,김형태,김진욱,강일오,유현석,최경식 한국수소및신에너지학회 2020 한국수소 및 신에너지학회논문집 Vol.31 No.5
In this literature, we are introduce a basic design of multi energy hub based on natural gas governor station. Multi energy hub consists of turbo expender generator, phosphoric acid fuel cell, pressure swing adsorption, H2 charging station, utilities and etc. We design a hybrid energy hub system that provides energy using these complex energies, and calculates the amount of electricity that can be produced and the amount of hydrogen charged through the process analysis. TEG and phosphoric acid fuel cell produce 2,290 to 2,380 kW and can supply electricity to 500 houses. In addition, By-product H2 gas is refined to H2 vehicle fuel. This will help maximize the balance of energy demand and supply and improve national energy efficiency by integrating unused decompression energy power generation technology and various power generation/heat source technologies.
김봉진,김종욱,강석훈,강경석,최상진 한국수소및신에너지학회 2006 한국수소 및 신에너지학회논문집 Vol.17 No.4
This paper deals with the national competitiveness of hydrogen energy. The effectiveness of investments for hydrogen energy R&D and constructions of hydrogen energy infrastructures can be evaluated by the national competitiveness of hydrogen energy, and it is evaluated by an AHP(analytic hierarchy process) method. The evaluation indices of the national competitiveness are selected as the technical level, the number of researchers, the investments for R&D, and the infrastructure of hydrogen energy. Similarly, the technical level is divided into the number of published papers, the number of foreign patents, and the number of published proceeding papers. The evaluation indices of the technical level and the number of researchers were investigated by database searches. It appears that South Korea locates the sixth position in the world. The results of our study suggest that South Korea is relatively competitive in the technical level and the number of researchers. However, our country needs the long-term and well-focused R&D, and the expansion of infrastructures to enhance the national competitiveness of hydrogen energy in the future.
수소에너지에 대한 심리적 태도 기반의 수소사회 활성화 전략방안: 위험성, 친숙성, 수용성 중심으로
김숙희,김정화,신혜영 한국수소및신에너지학회 2022 한국수소 및 신에너지학회논문집 Vol.33 No.4
In these day, the environmental issues of climate change have been continuously highlighted and there is an active discussion on the transition from fossil fuel-based energy to eco-friendly energy use. This study considered psychological attitudes as a major influencing factors for successful implementation of a hydrogen society totally based on the use of hydrogen energy, which is regarded as an alternative energy for future. Accordingly, familiarity, risk perception, and acceptability of psychological factors were investigated. In addition, this study identified whether there are differences in psychological factors according to the general characteristics of gender, age, occupation, and housing type. The results showed that awareness of hydrogen cars and fuels is below the average level, and we also have obtained the implication that social knowledge sharing should precede the implementation of hydrogen policy. Although we found that the degree of urban acceptance of hydrogen energy was high, it was also confirmed that the charging infrastructure was generally perceived as having a high risk. Our findings implicate that it is necessary to figure out policy strategies for suitable locating charging infrastructure in order to promote the use of hydrogen energy more.