• Title/Summary/Keyword: 에너지 플러스

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이슈&이슈 (1) - 국내 최초 저에너지 친환경 공동주택 모델 개관

  • 대한설비건설협회
    • 월간 기계설비
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    • s.239
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    • pp.40-43
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    • 2010
  • 국토해양부(장관 정종환)는 지난5월 26일 송도국제도시 연세대학교 캠퍼스에서 국토해양부 장관, 녹색성장위원회 위원장, 연세대학교 김한중 총장 등이 참석한 가운데 "저에너지 친환경 공동주택(그린홈 플러스 G-home)"모델 개관식을 개최했다. 그린홈 플러스는 정부가 R&D 예산을 지원하여 산 학 연 합동으로 추진한 "저에너지 친환경 공동주택 기술개발"의 연구 성과물로서, 국내 최초로 공동주택에 저에너지 친환경 주택 기술을 적용하여 건축한 모델이라는데 의의가 있다.

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Design and Energy Performance Evaluation of Plus Energy House (플러스에너지하우스 설계 및 에너지 성능 평가)

  • Kim, Min-Hwi;Lim, Hee-Won;Shin, U-Cheul;Kim, Hyo-Jung;Kim, Hyun-Ki;Kim, Jong-Kyu
    • Journal of the Korean Solar Energy Society
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    • v.38 no.2
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    • pp.55-66
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    • 2018
  • South Korea aims to shift the 20 percent of electricity supplement from the fossil fuel including the nuclear to renewable energy systems by 2030. In order to realize this agenda in the buildings, the plus energy house is necessary to increase the renewable energy supplement beyond the zero energy house. This paper suggested KePSH (KIER Energy-Plus Solar House) and energy performance of house and renewable energy systems was investigated. The KePSH has the target of generating 40% surplus energy than the conventional house energy consumption. The plus energy house is the house that generates surplus energy from the renewable energy sources than that consumes. In order to minimize the cooling and heating load of the house, the shape design and passive parameters design were conducted. Based on the experimental data of the plug load in the typical house, the total energy consumption of the house was estimated. This paper also suggested renewable energy sources integrated HVAC system using air-source heat pump system. Two cases of renewable energy system integration methods were suggested, and energy performance of the cases was investigated using TRNSYS 17 program. The results showed that the BIPV (building integrated photovoltaic) system (i.e., CASE 1) and BIPV and BIST system (i.e., CASE 2) shows 42% and 29% of plus energy rate, respectivey. Also, CASE 1 can generate 59% more surplus energy compared with the CASE 2 under the same installation area.

ESCO Special - 에너지절약 건축물의 효율적 프로젝트 수행방안과 사례

  • Bae, Sang-Hwan
    • The Magazine for Energy Service Companies
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    • s.84
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    • pp.12-19
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    • 2013
  • 최근 공동주택의 에너지저감을 위한 노력들이 추진되고 있다. 그러나 제로에너지 공동주택과 같이 다양하고 복잡한 기술적용이 필수적이고, 비용 상승을 수반하는 프로젝트의 경우 효율적인 프로젝트 수행프로세스 및 접근방식이 필요하며, 특히 경제성을 고려한 요소기술의 적용은 저에너지 건축물 활성화에 가장 큰 장애요인으로 작용하고 있다. 이러한 관점에서 본 고에서는 저에너지 친환경 건축물의 효율적인 구축을 위한 방안으로서 'IPD프로세스'를 고찰하고, 그린홈플러스 실험주택 건설사례를 통해 활용가능성을 고찰하고자 하였다.

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An Applicability Analysis of River Water Source Heat Pump System using EnergyPlus Simulation (에너지플러스 시뮬레이션을 통한 하천수 열원 히트펌프 시스템의 적용 가능성 분석)

  • Sohn, Byonghu
    • Journal of the Korean Society for Geothermal and Hydrothermal Energy
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    • v.18 no.2
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    • pp.10-21
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    • 2022
  • A water source heat pump (WSHP) system is regarded as an energy-efficiency heating and cooling supply system for buildings due to its high energy efficiency and low greenhouse gas emissions. Recently, water sources such as river water, lake water, and raw water are attracting attention as heat sources for a heat pump system in Korea. This paper analyzed the applicability of a river water source heat pump system (RSHP). The river water temperature level was compared with the outdoor air and ground temperature levels to present applicability. In addition, the cooling and heating performance were compared through a simulation approach for the RSHP and a ground source heat pump (GSHP) applied to a large-scale office building. To compare the temperature level, the actual data were applied to the river water and the outdoor air, while the simulation results were applied to the ground circulation water. The results showed that the change in river water temperature throughout the year was similar to the change in outdoor air temperature. However, unlike the outdoor air temperature, the difference between the hourly and daily average river water temperatures was not large. The temperature level of river water was lower during the heating season and somewhat higher during the cooling season than that of the ground circulation water. Finally, the performance of the RSHP system was 13.4% lower than that of the GSHP system on an annual-based.

A Study on analyze of energy saving rate by retrofitting multi air-conditioner from conventional type to high efficient type using Energyplus (Energyplus를 이용한 고효율 멀티에어컨디셔너의 에너지절감 효과 분석)

  • Seo, Jeongsik;Kim, Ook Joong;Woo, Juntae;Choi, Younsung;Jeon, Jongog
    • 한국신재생에너지학회:학술대회논문집
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    • 2010.11a
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    • pp.165.2-165.2
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    • 2010
  • The objective of this study is to analyze the energy saving rate by retrofitting multi air conditioner from conventional type to high efficient type using Energyplus 4.0 which was developed for simulating a building energy by D.O.E. Generally, Multi air conditioner system was installed for both the cooling and the heating in a building. However, it was difficult to estimate the energy saving rate in the case of retrofitting multi air conditioner from conventional type to high efficient type. In the present study, annual energy consumptions of them were evaluated for same building and climate condition.

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