• 제목/요약/키워드: energy

검색결과 84,593건 처리시간 0.094초

농촌지역 농가 에너지소비 모델 개발 (Developing an Energy Consumption Model of Household Unit in Rural Area)

  • 리신호;왕군;윤성수
    • 한국농공학회논문집
    • /
    • 제50권4호
    • /
    • pp.99-109
    • /
    • 2008
  • As the price of traditional fossil fuels continue to increase, more people attach importance to the pollution of the environment caused by fossil fuel's burning, developing and using renewable energy resources has become a very important project all over the world. Also, the rural energy planning which is another method to improve energy utilization ratio and reduce environment pollution, is also regarded as a very effective way to reduce the energy consumption. There is a quantity of renewable energy resources and natural tribes in rural area, which is both feasible to develop the renewable energy and the regional energy planning. To carry out this, it is needs to know the area's quantity of renewable energy resources and the total energy consumption. This paper is to find out the relationship between rural energy consumption and rural conditions, and to found a energy consumption model which can conjecture the energy consumption in rural family. and the cost of rural family's energy consumption was founded to conjecture how much money dose it cost in rural family's energy consumption. The energy consumption model was concluded using the surveys of 76 families in 14 villages at the area of Chungcheongbuk-Do(province). The main factors to energy consumption was selected out which were number of family members, acreage of house, acreage of farmland and family's annual income.

에너지순수입의존도 및 에너지자립도 지표를 통한 우리나라 에너지경제효율분석 (An Energy Efficiency Analysis of Korea based on the Energy Dependence and Independence rate)

  • 민윤지
    • 통상정보연구
    • /
    • 제16권2호
    • /
    • pp.199-218
    • /
    • 2014
  • 본 연구는 1995년부터 2010년까지 국가 에너지통계의 에너지소비, 생산, 수출 입 등 실적자료를 바탕으로 우리나라의 에너지경제효율을 분석하였다. 에너지 수출 입과 에너지 생산 자료를 통해 에너지원단위, 에너지순수입의존도, 에너지자립도 I, II 를 산출하고 국가경제규모와 비교분석을 통해 우리날 에너지경제 수준을 살펴보고 시사점을 제시하는데 목적이 있다. 에너지원단위 지표를 통한 에너지효율수준 분석이 주로 이루어졌다면, 본 연구는 에너지순수입의존도와 에너지자립도를 통해 국가 에너지 수출 입구조와 에너지생산수준을 추가적으로 살펴볼 수 있는 장점이 있다고 하겠다. 연구 결론으로 우리나라는 에너지경제효율 수준이 상당히 낮은 수준으로 국가적 정책 차원의 에너지효율개선의 필요성을 제기한다.

  • PDF

제로에너지타운 내 주택 에너지 성능 평가에 관한 연구 (A Study on the Energy Performance Evaluation of Zero Energy House in Zero Energy Town)

  • 이왕제;백남춘;이경호;허재혁
    • 한국태양에너지학회 논문집
    • /
    • 제35권2호
    • /
    • pp.85-91
    • /
    • 2015
  • In this study, energy performance analysis of houses in zero energy demonstration town(ZeT) was carried out using the monitoring results. This ZeT was composed 29 zero energy individual houses(ZeH) which were applied passive as well as active technologies. The results are as follows. (1) Residents are generally considered to have been lacking basic mind to save energy, (2) In particular, average yearly total energy consumption per house is 12,834 kWh and specific heating energy is $53.2kWh/m^2{\cdot}yr$ which is higher than that of passive house. This is because of one of the reason just pointed out in subsection (1). (3) Most part of the residual energy load are supplied with only renewable energy, but not operating energy for geothermal heat pump which is use of cheap electricity.

노후 단독주택의 난방에너지 효율 개선을 위한 대안 선정 방법에 관한 연구 (Alternative Selection Method for Energy Efficiency Improvement of Old Detached House)

  • 황석호
    • 한국태양에너지학회 논문집
    • /
    • 제39권2호
    • /
    • pp.45-55
    • /
    • 2019
  • More than 76% of the detached houses in Korea are over 20 years old. These old detached houses have poor energy efficiency. According to the 2017 Housing Census (Statistics Korea), more than 50% of low-income families live in detached houses. Therefore, the improvement of energy efficiency in old detached houses is needed from the viewpoint of energy welfare. The general method of building energy modelling for the verification of energy efficiency is based on the construction year data of "Building Design Criteria for Energy Saving" due to the cost and time involved in collecting the thermal performance data of buildings. There is poor accuracy with the deterioration of long-term aging of building materials. Also, the selection of alternatives for energy performance improvement is based on the items to be applied, not a performance improvement goal. It is difficult to calculate energy performance that reflects variations in various parameters with dynamic energy simulations. In this study, the influence of long-term aging is used to accurately predict the energy performance of old detached houses. The building energy modelling method is called ENERGY#, which is a static analysis method based on ISO13790. Energy performance is evaluated by a combination of input variables including building orientation, insulation of walls and roof, thermal performance of windows and window/wall ratio, and infiltration rate. Finally, this study provides a way to determine alternatives that meet energy performance improvement goals.

Overcoming Electrical Energy Efficiency Gap in Nepal's Residential Sector

  • Thapa, Shahadev;Kim, Yun Seon
    • Asia Pacific Journal of Business Review
    • /
    • 제3권1호
    • /
    • pp.19-38
    • /
    • 2018
  • The energy intensity of Nepal is economically not worthy, lacks eco-friendly and importantly not sustainable, and almost four times the average global energy intensity. Considerable efforts have been exercised to reduce the energy gap yet, it is still much to achieve. Nation priority on energy sector was envisaged with promulgation of investment friendly rules and law in hydropower and renewable technology even though, could not harness the sufficient energy. In amid of this acute energy crisis, the government launched the Nepal Energy Efficiency Programme (NEEP) with technical assistance from German International Cooperation (GIZ). Energy Efficiency (EE) practice is the most cost-effective method to reduce the supply and demand gap, reduce on greenhouse gases and pollution, and deter on import of petroleum products which finally improves on trade imbalance. This paper had proposed a framework of energy management team to promote energy efficient technologies in residential consumer. The energy management teams study the past records of energy use pattern of consumers and suggest appropriate technology for energy saving options. The paper provides some reviews of energy efficiency initiatives undertaken by the concern regulatory body which highlights the current status. The comprehensive knowledge acquired through exploratory research is implemented in this paper to identify the various barriers that domestic consumer is experiencing towards the active participation in energy efficiency program launched by the Government of Nepal.

Hybrid wind-solar power deployment in India: Green Energy Open Access (GEOA) and Renewable Energy Certificates (REC)

  • Hardik K. Jani;Surendra Singh Kachhwaha;Garlapati Nagababu;Alok Das
    • Advances in Energy Research
    • /
    • 제8권4호
    • /
    • pp.243-252
    • /
    • 2022
  • The hybrid wind-solar energy concept has a big influence on the spread of wind and solar power projects in India since it combines the benefits of both industries while also providing extra benefits such as resource sharing such as land, infrastructure, and power evacuation systems. Furthermore, while the hybrid policy may reduce certain barriers to the installation of wind and solar energy in India, there are still some issues that must be resolved rapidly in order to ensure a sustainable installation. According to the study's findings, the installation of wind and solar power plants is significantly influenced by energy policy. The wind-solar hybrid energy strategy will also be crucial in the near future for growing the usage of renewable energy sources. Aside from that, the establishment of Green Energy Open Access (GEOA) and the restart of the trading of Renewable Energy Certificates (REC) would promote the quick deployment of standalone and hybrid renewable power projects throughout the nation, enabling it to reach 500 GW of installed non-fossil energy capacity by 2030.

에너지산업연관분석을 이용한 산업별 에너지 사용 pattern 분석 (Analysis of Sectoral Energy Use Pattern with Energy Input-Output Approach)

  • 정환삼;동야달;심상렬
    • 에너지공학
    • /
    • 제17권3호
    • /
    • pp.145-152
    • /
    • 2008
  • 에너지가격의 인상과 고갈의 시대에 들면서, 사회적으로 에너지 정책에 대한 정부의 개입요구가 더욱 높아지고 있다. 에너지 정책 시행은 양면의 상반된 효과를 유발할 수 있다. 우선 긍정적인 면에서 에너지 수입의 감소를 통해 불필요한 외화유출을 방지할 수 있어 재원의 적절한 배분을 가능케 하고, 비싼 에너지 사용의 절약을 통해 가격 경쟁력을 제고할 수 있을 것이다. 이에 반해 무분별한 에너지 절약 정책의 경우, 투입재를 에너지에서 설비로 비합리적으로 대체하여 정책실적만 기록할 뿐이고 오히려 경제에서는 생산성을 저해하는 예기치 못한 부정적인 효과를 초래할 수도 있다. 에너지 정책에서 정책효과를 높이기 위해서는 경제를 구성하는 각 산업 부문별로 에너지 사용 형태를 분석하고 그 결과를 이해하는 노력이 선행되어야 한다. 이 점에서 본 연구는 거시적 접근법의 대표적 방법인 에너지 산업연관분석을 이용해 한국의 산업 부문별 에너지 소비행태를 분석하였다. 이를 통해 에너지 사용 집약도와 에너지원별 소비행태의 변화에 대한 계량적 분석을 수행하였다.

신재생에너지 자원지도의 비즈니스 모델 개발 (Business Model of Renewable Energy Resource Map)

  • 박년배;박상용;최동구;김현구;강용혁
    • 한국태양에너지학회 논문집
    • /
    • 제36권1호
    • /
    • pp.39-47
    • /
    • 2016
  • Geographic information system (GIS) based renewable energy resource map including potential analysis can play a crucial role not only to develop the national plan for renewable energy deployment but also to make strategic investment decision in the private sector. Korea Institute of Energy Research (KIER) has been developing domestic maps about several resources such as solar, wind, hydro, biomass, and geothermal, as well as conducting research on methodologies for potential analysis. Furthermore, the institute is trying to transfer related technologies and know-how to foreign countries, recently. In this context, the main purpose of this study is to introduce the business model of renewable energy resource map. From the value chain analysis, we focus on the government-side market in foreign countries, such as the development of the national level renewable energy resource map and the support of the national renewable energy plan. For about 180 countries, we segment the customers according to the consideration of economic capacity, renewable energy resource capacity, existence of renewable resource map, current portion of renewable energy facility capacity, and renewable energy policies, and we conclude that the target customers are non-Organization for Economic Co-operation and Development (non-OECD) countries or some OECD countries, their per capita GDP are under the average among OECD countries, that do not have renewable resource map yet. We segment the target customers into four groups, and suggest different strategies for market positioning and financing strategy based on Strengths, Weaknesses, Opportunities, Threats (SWOT) analysis. This study can help to develop the business strategy about the development of renewable energy resource map in foreign countries.

Quality Assurance of Head-end Process of PYRO

  • Kang, Kweon Ho;Cho, Yung Jun;Hong, Seok-Min;Lee, Jae Won;Kim, Young Hwan;Lee, Ju Ho;Lee, Do Youn;Lee, Young Soon;Yoon, Joo Young
    • 한국방사성폐기물학회:학술대회논문집
    • /
    • 한국방사성폐기물학회 2018년도 추계학술논문요약집
    • /
    • pp.618-619
    • /
    • 2018
  • PDF

Electrolytic Behaviors in Large-scale LCC Electrowinning System

  • Kim, Si Hyung;Sim, Jun-Bo;Kang, Han Byeol;Lee, Young Sang;Park, Sungbin;Kwon, Sang-Woon;Woo, Moon-Sik;Jung, Jae-Hoo;Lee, Sung-Jai
    • 한국방사성폐기물학회:학술대회논문집
    • /
    • 한국방사성폐기물학회 2017년도 춘계학술논문요약집
    • /
    • pp.90-91
    • /
    • 2017
  • PDF