• 제목/요약/키워드: Association energy

검색결과 6,457건 처리시간 0.028초

한국 열관리사 협회보-제68호

  • 한국열관리사협회
    • 한국에너지기술인협회보
    • /
    • 68호
    • /
    • pp.1-20
    • /
    • 2007
  • 지부소식/이달의 ISSUE/서울지부 운영위원, 이판욱 기관장/귀뚜라미그룹 김규원 총괄사장/2007 대한민국 에너지대전/제8회 ESCO Mart 성료/ZOOM IN/보일러 Q&A/

  • PDF

베를린 제1회 세계풍력회의를 다녀와서(1) (The World Wind Energy Conference in Berlin (1))

  • 기우봉
    • 기술사
    • /
    • 제35권4호
    • /
    • pp.52-55
    • /
    • 2002
  • The development of environment-friendly Energy Resources (New Renewable Energy Resources) is one of the global topics these days, considering CO2 Reduction Agreement by Kyoto Protect and the limit of Conventional Energy Resources in near future. Among the New Renewable Energy, Wind Energy is the most feasible Renewable Energy in view of economical and technical aspect at this moment. Last 10 years the Wind Energy Development was really dramatical in Europe. especially in Germany, Denmark and Spain. In this circumstance World Wind Energy Conference was held in Berlin Germany, in order to review the present status and future development of the Wind Energy. This report is a brief report of the Conference .

  • PDF

21세기의 에너지에 관한 고찰 (Review of the 21th Energy)

  • 이현화
    • 기술사
    • /
    • 제39권5호
    • /
    • pp.20-24
    • /
    • 2006
  • The energy of 97% consumed by our country depends on it's import from foreign market. This article covers hydrogen, fuel-cell, coal liquefaction gasification energy, and solar, wind, photovoltaic, hydro power, ocean, waste, geothermal, bio energy that is renewable energy, and so on, which are new-generation energy sources, increasing the concern on new & renewable source of enenrgy in future.

  • PDF

육상풍력 발전시설 지자체 규제 공간범위 산정 연구 (Estimating Spatial Scope of Local Government Ordinance for Onshore Wind Energy Generation Facilities)

  • 홍성희;김소라;박은정;이혜림;김진영;황수진;송정은
    • 신재생에너지
    • /
    • 제18권4호
    • /
    • pp.38-53
    • /
    • 2022
  • T Recently, the government has been promoting the expansion and supply of renewable energy as an alternative for achieving carbon neutrality and the nationally determined contributions by 2030. In 2020, the Ministries of Industry and Environment and the Korea Forest Service collaborated to build a nationwide onshore wind energy siting atlas considering wind resources and forestry and environmental regulations focused on central regulations. In this study, the ordinances of the local governments were analyzed to examine the effects of regional location regulations on the expansion of onshore wind power energy generation facilities, in addition to those of central regulations. A development permit standard survey of 226 urban plan ordinances of the local governments nationwide showed that presently in 2022, 52 municipalities are applying regulations on wind energy generation facilities by ordinances. This is twice more than that in 2018, when renewable energy power generation facility development was difficult. Additionally, the location regulations applied by these ordinances were organized by items and regions, and regulatory characteristics, such as the number and scope, were analyzed by regions. To analyze the spatial distribution characteristics, JeollaNamdo was selected as the case area. A spatial DB was established for regulated areas based on the regional and central regulations, and the spatial distribution characteristics and the regulatory scope were compared and analyzed.

Effects of Uphill Exercise on Digestible Energy Intake and Energy Expenditure during Exercise in Yearling Horses

  • Matsui, A.;Katsuki, R.;Fujikawa, H.;Kai, M.;Kubo, K.;Hiraga, A.;Asai, Y.
    • Asian-Australasian Journal of Animal Sciences
    • /
    • 제17권7호
    • /
    • pp.973-979
    • /
    • 2004
  • The objectives of this study were to evaluate the digestible energy intake and energy expenditure in yearling horses on different training protocols (uphill- and level-track exercise training protocols). Twenty-four thoroughbred yearlings (12 males and 12 females, aged 27.0$\pm$0.9 months) were divided into two groups based on their training on two different tracks: the uphill (with a gradient of about 3%) training group (uphill training) and the level training group (level training). The digestible energy (DE) intake and energy expenditure (EE) during exercise were measured in both the groups. It was found that the DE intake in the uphill training and the level training groups was 5.1$\pm$3.1 and 36.9$\pm$4.8 Mcal/day, respectively. The EE during exercise in the two groups was 3.05$\pm$0.51 and 2.07 $\pm$0.56 Mcal, respectively. Thus, there was a significant difference in the EE (p<0.05), but not in the DE intake between the animals of the two training groups. The EE for a given intensity of exercise was greater in the uphill training group than in the level training group, but the DE intake was not affected by the exercise intensity. The DE intake was not generally affected by the intensity of exercise in this study, but a daily negative gain of body weight was observed in the uphill training group, particularly in the females. Thus, the energy requirement may be higher in yearlings undergoing uphill training than in those undergoing level training.

산지사면의 유출 및 토양침식에 대한 에너지 보존 (Energy Conservation for Runoff and Soil Erosion on the Hillslope)

  • 신승숙;박상덕;조재웅;홍종선
    • 한국수자원학회:학술대회논문집
    • /
    • 한국수자원학회 2008년도 학술발표회 논문집
    • /
    • pp.234-238
    • /
    • 2008
  • The energy conservation theory is introduced for investigating processes of runoff and soil erosion on the hillslope system changed vegetation condition by wildfire The rainfall energy, input energy consisted of kinetic and potential energy, is influenced by vegetation coverage and height. Output energy at the outlet of hillslope is decided as the kinetic energy of runoff and erosion soil, and mechanical work according to moving water and soil is influenced dominantly by the work rather than the kinetic energy. Relationship between output and input energy is possible to calculate the energy loss in the runoff and erosion process. The absolute value of the energy loss is controlled by the input energy size of rainfall because energy losses of runoff increase as many rainfall pass through the hillslope system. The energy coefficient which is dimensionless is defined as the ratio of input energy of rainfall to output energy of runoff water and erosion soil such as runoff coefficient. The energy coefficient and runoff coefficient showed the highest correlation coefficient with the vegetation coverage. Maximum energy coefficient is about 0.5 in the hillslope system. The energy theory for output energy of runoff and soil erosion is presented by the energy coefficient theory associated with vegetation factor. Also runoff and erosion soil resulting output energy have the relation of power function and the rates of these increase with rainfall.

  • PDF

에너지단신

  • 한국열관리사협회
    • 한국에너지기술인협회보
    • /
    • 29호
    • /
    • pp.4-5
    • /
    • 2004
  • PDF

에너지단신

  • 한국열관리사협회
    • 한국에너지기술인협회보
    • /
    • 38호
    • /
    • pp.7-7
    • /
    • 2005
  • PDF