• Title/Summary/Keyword: Energy Economy

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Computable General Equilibrium Analysis of Energy Markets with Imperfect Competition and Scale Economy (불완전경쟁 및 규모의 경제가 에너지 산업에 미치는 영향)

  • Park, Chang Won;Kim, Gene Uhc
    • Environmental and Resource Economics Review
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    • v.11 no.2
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    • pp.291-319
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    • 2002
  • This Paper investigates imperfect competition and economy of scale on Korean energy markets based on computable general equilibrium model. Some industries like energy sector have exhibited that their economies have strong economies of scale and imperfect competition. Thus these industrial organization facts should be incorporated into CGE model. In our model, non-competitive markets are adopted and compare these results with convention perfect competition model.

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A Study on the Characteristics of Vehicle Fuel Economy by Increasing Mileage (주행거리 증가에 따른 자동차 연비 특성 연구)

  • LIM, JAE-HYUK;KIM, KI-HO;LEE, MIN-HO;PARK, JIN-SUNG;LEE, JUNG-MIN
    • Journal of Hydrogen and New Energy
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    • v.29 no.3
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    • pp.299-305
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    • 2018
  • The domestic label fuel economy measurement method is the same as the North American measurement method. The results of two test modes (city [FTP-75 mode], highway [HWFET mode]) are calculated to be equivalent to the final fuel economy value calculated as the result of five test modes reflecting various environmental conditions and driving patterns 5-cycle correction formula is used. In this study, we tried to find out that the difference between the domestic label fuel economy of the vehicle and the real road fuel economy felt by the driver compared to the new vehicle condition as the mileage increases. Using domestic label fuel economy measurement method, Four gasoline vehicles and four diesel vehicles were tested for the fuel economy of a new vehicle with a mileage of 150 km or less and domestic fuel economy test $6,500{\pm}1,000km$ durability condition and 15,000 km durability. It is confirmed that the certain portion (6,500 km endurance vehicle) The increase in mileage did not affect the fuel economy or the emission gas significantly, indicating that vehicle durability was limited.

Air Pollutant Reduction Effect on Road Mobility in Hydrogen Economy Era (수소경제 활성화 로드맵 달성에 따른 교통 부문의 대기오염원 저감 효과 분석)

  • KIM, JUNGHWA
    • Journal of Hydrogen and New Energy
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    • v.31 no.6
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    • pp.522-529
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    • 2020
  • This study evaluated the effect of improving the atmospheric environment based on the premise that the supply of hydrogen fuel cell vehicles (HFCV) will be achieved as many as the number of vehicles presented in the hydrogen economy activation roadmap announced by the Korean government in January 2019. The HFCV supply target (2.7 million passenger cars) suggested in the hydrogen economy revitalization roadmap was logically allocated to the five major metropolitan areas in Korea. Air pollution damage costs by region were calculated by reflecting the basic unit of damage cost to the estimated air pollutant emissions. As a result, it was confirmed that the benefits per unit of some cities in Gyeonggi-do were derived more than major cities in the metropolitan area.

The Effects of Wind Power Generation Exports on the National Economy (풍력발전 해외수출의 경제적 파급효과 분석)

  • Jin, Se-Jun;Jeong, Dong-Won;Kwon, Yong-O;Yoo, Seung-Hoon
    • Journal of Energy Engineering
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    • v.21 no.3
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    • pp.281-291
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    • 2012
  • Recently, global economy has recovered and aspects of the renewable energy industry in the global competition is more fierce, the new growth engines of the major countries, including the United States and China, industry promotion policy as being deployed. Major advanced countries and Korea also invested a lot of money to wind power development as a part of renewable energy development and promoting the construction of wind power generation. The global wind power generation market is expected to further increase the scale to about 70 billion US dollars, thus, Korea as well as the installation of domestic wind power overseas actively considering. This study uses input-output analysis to estimate the role of wind power generation sector exports national economy. More specifically, this study shows what national economy effect of production-inducing effect, value-added inducing effect, and employment-inducing effect are explored with demand-driven moel. After define wind power generation sector what small sized of Input-Output table 168 sectors among 11 sectors, this study pays particular and close attention to wind power generation sector by taking the sector as exogenous specification and then investigating economic impacts of it. The wind power generation exportation case of overseas 100 billion won, production-inducing effect, value-added inducing effect, and employment-inducing effect are 205 billion won, 68 billion won and 1,054 persons, respectively. These quantitative information can be usefully utilized in the policy-making for the industrialization of wind power generation exports.

A study on the economy consciousness and behavior of living resources of young housewives (신세대 주부의 생활자원 절약의식과 절약행동에 관한 연구)

  • 이지영;이정우
    • Journal of Family Resource Management and Policy Review
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    • v.6 no.1
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    • pp.117-134
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    • 2002
  • The purpose of this study is to investigate the relationships between young housewives’economy consciousness and economy behavior. The data used in this study were taken from 429 housewives between 20's and 35's who have at least one child with their spouse in Seoul The results of this study were as follows : First, the general trend of the economy consciousness and behavior in living resources was that the level of consciousness is more higher than the level of behavior. Second, the degree of employed wives' economy behavior was more passive than that of house wives’behavior. Third, housewives’economy consciousness and behavior showed a significant difference in their education level, family income and number of children. Fourth, from the Regression Analysis, the Model was accounting for 45% of the variance. Influential variables on housewives’economy consciousness and behavior were self esteem, the inside and outside control, perception of the adequacy of resources. Fifth, out of sub- variables about housewives’economy consciousness and behavior, energy resources was relatively at the high level.

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Hydrogen Industry Cycle Infrastructure Safety Analysis (수소산업 전주기 인프라시설 안전성 분석)

  • WOOIL PARK;SEULKI CHOI;INWOO LEE;SEUNGKYU KANG
    • Journal of Hydrogen and New Energy
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    • v.33 no.6
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    • pp.795-802
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    • 2022
  • Korea is showing its appearance as a leading country in the hydrogen economy by establishing policies for revitalizing the hydrogen economy and enacting the 「Hydrogen Economy Promotion and Hydrogen Safety Management Act」 for the first time in the world. In addition, domestic hydrogen facilities are using hydrogen energy safely through world-class safety management compared to overseas advanced countries. However, in order to enhance the safety of the rapidly diversifying hydrogen industry and rapid technology development, such as the introduction of liquefied hydrogen, some institutional improvements are needed. In this regard, this paper intends to analyze the results of safety inspections on 13 representative facilities and prepare safety improvement plans to establish preemptive safety measures.

Hydrothermal Synthesis of Fe Based MOFs with Energy Economy Approach

  • Israr, Farrukh;Kim, Duk Kyung;Kim, Yeongmin;Oh, Seung Jin;Ng, Kim Choon;Chun, Wongee
    • Journal of Energy Engineering
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    • v.24 no.2
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    • pp.55-58
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    • 2015
  • The mesoporous metal organic framework structure Fe-BTC was successfully synthesized by hydrothermal process with noticeable yield. The synthesis operation was conducted at intermediate temperature and for shortened operation time as compared to conventional procedures. This process approach with reduced operating temperature and shortened operation time may open an opportunity window towards process economy with reduction in energy consumption. A simple mathematical approach of diffraction indexing using X-ray diffraction patterns of synthesized powder was employed to confirm its crystalline nature and to investigate its high temperature stability. The crystallite size was calculated by using Debye-Scherrer equation.

A National Vision of the Hydrogen Economy and Action Plan ('친환경 수소경제' 구현을 위한 마스터플랜 - 연료전지산업 및 중장기 신.재생에너지 개발비전 -)

  • Boo Kyung-Jin
    • Journal of Energy Engineering
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    • v.15 no.2 s.46
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    • pp.83-95
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    • 2006
  • This study is to establish a national vision of the hydrogen economy and design a roadmap to materialize it. A goal is set to supply 15% of final energy consumption with hydrogen energy in Korea by 2040. Selecting the transportation sorter as the main target, more than 50% of vehicles on the road will be replaced with fuel cell vehicles (FCVs) while $20{\sim}30%$ of electricity demand in the residential and commercial sectors might be replaced with power generation by fuel cells. If this goals were attained as planned, primary energy demand would be reduced by 9%, resulting in improved energy mix in which fossil fuel consumption is greatly reduced whereas renewable energy increases by 47%. Furthermore, GHG emissions will be reduced by 20% and self-sufficiency in energy is enhanced up to 23%. If the hydrogen economy is to materialize, the government needs to implement institutional arrangements such as new legislations, organizations, and fiscal measures to facilitate the process. In addition, the private sector's participation is highly recommended to mobilize fund needed for the huge investment to build an infrastructure in preparation for the hydrogen economy. Arrangements for codes and standards are also required to promote industrialization of fuel cells and hydrogen production and consumption.

Steering Consuming Energy and Fuel Efficiency Analysis Depending on Steering System Model (조향 모델에 따른 조향 소모 에너지와 연비 분석)

  • Gu, Bonhyun;Lee, Heeyun;Park, Yunkyong;Cha, Sukwon;Lim, Wonsik;Jang, Bongchoon;Bang, Jinseok
    • Transactions of the Korean Society of Automotive Engineers
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    • v.24 no.4
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    • pp.401-407
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    • 2016
  • For high fuel economy, many kinds of unit in vehicle have been developed. In steering system, as a result, HPS(Hydraulic Power Steering) system has been replaced as EHPS and EPS system. But the structures of these systems are totally different, and that causes the uncertainty of fuel economy evaluation. Therefore we undertake to research to find results and tendency of fuel economy and energy in steering system. For accurate evaluation, we modeled different types of steering systems on same vehicle model. The simulation came into action on various driving cycle. The driving condition is designed to show standby power of pump. Results show differences of fuel efficiency and energy consumption.