• Title, Summary, Keyword: energy

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Study on the Renewable Energy Technology Market; based on Photovoltaics, Fuel cell, and Wind (신재생 에너지기술 시장 평가 (태평광, 연료전지, 풍력을 중심으로))

  • Park Soo-uk;Lee Deokki;Choi Sangjin
    • 한국신재생에너지학회:학술대회논문집
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    • pp.577-584
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    • 2005
  • There are many activities involved in promoting renewable energy technologies. These include governments, the renewable energy manufacturing and service industries, energy supply companies, investors, researchers, non-government organizations and customers. For a sustainable renewable energy market, finding a promising industry is essential. The industry has made significant progress in recent years, considering the fact that today's renewable energy market is relatively small. This paper analyses the technology market of renewable energy, focusing on photovoltaic system, fuel cell, wind system. It appears that there has been remarkable progress in renewable energy systems. Besides, developed countries are effectively increasing the share of niche market and promoting renewable energy worldwide.

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A Comparative Study on Heating Energy Consumption of Multi-Family Apartment using EnergyPlus and eQUEST (EnergyPlus와 eQUEST를 이용한 공동주택의 난방에너지소비량 비교분석에 관한 연구)

  • Park, Doo-Yong;Yoon, Kap-Chun;Kim, Kang-So
    • Journal of the Korean Solar Energy Society
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    • v.33 no.1
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    • pp.48-56
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    • 2013
  • Energy consumption analysis of multi-family apartment is an important area of research for the design of energy-saving housing. In this study, we selected a universal type of Flat-type apartments and analyzed the heating energy consumption of variables such as U-value, G-value, infiltration rate, heating setpoint and boiler efficiency with EnergyPlus and eQUEST. With these results, we identify the characteristics of EnergyPlus and eQUEST and provided base data for the design of energy-saving housing. The results indicate that infiltration rate is the most important factors to consider. And eQUEST heating energy consumption is approximately 10% higher compared to the EnergyPlus under same condition.

Energy Saving by Combination of Element Technologies of Zero-Energy House (제로에너지 주택용 요소기술 조합에 따른 에너지절감에 관한 연구)

  • Shin, Hyun-Cheol;Jang, Gun-Eik
    • KIEAE Journal
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    • v.15 no.4
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    • pp.77-84
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    • 2015
  • Purpose: In 2008, As the green growth policy was presented, Green Building is made any effort to propagation. In this paper, the respective technologies that are able to considerably reduce the energy demands for heating, cooling, hot-water, lighting and ventilation among the variety of technologies were selected. Method: Design factors such as (1) External insulation, (2) Triple glazing window, (3) LED lighting, (4) External venetian blind, (5) Geothermal and (6) Heat recovery ventilator were derived. In addition, energy saving effects in terms of energy demand, energy consumption and energy cost were investigated using EnergyPlus, building energy analysis tool. Result : The results were as follows. (1) It can be seen that high insulated triple glazing window, heat recovery ventilator and external insulation technology is excellent for energy demand. (2) Unlike energy demand, saving effect of energy consumption and energy cost was shown in order of Geothermal > Triple Window > Heat recovery Ventilation> Insulation> LED Lighting > EVB Blind.

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
    • Proceedings of the Korean Radioactive Waste Society Conference
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    • pp.618-619
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    • 2018
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Energy self-sufficiency of office buildings in four Asian cities

  • Kim, Jong-Jin
    • Advances in Energy Research
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    • v.2 no.1
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    • pp.11-20
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    • 2014
  • This paper examines the climatic and technical feasibilities of zero energy buildings in Seoul, Shanghai, Singapore and Riyadh. Annual and seasonal energy demands of office buildings of various scales in the above cities were compared. Using optimally tilted rooftop PV panels, solar energy production potentials of the buildings were estimated. Based on the estimates of onsite renewable energy production and building energy consumption, the energy self-sufficiencies of the test buildings were assessed. The economic feasibilities of the PV systems in the four locations were analyzed. Strategies for achieving zero energy buildings are suggested.