• 제목/요약/키워드: Energy conservation effect

검색결과 173건 처리시간 0.049초

에너지 절약형 주택단지 설계기법에 관한 연구 (II) (A Study on an Energy-Effective Site Planning for a Residential Environment(II))

  • 양병이;김기호
    • 한국조경학회지
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    • 제13권1호
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    • pp.25-42
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    • 1985
  • The objective of this article is to develop residential site planning techniques for the energy conservation by focusing on energy conscious site design process, influencing natural factors for energy conservation and suggestion of multi - family housing Prototypes. This article is the second part of the article titled "A Study on an Energy - Effective Site Planning for a Residential Environment"which is published in the previous issue (Vol. 12, No. 2) of this journal. The first part of the article dealt with how to make best use of energy conserving effect of natural forces such as sun, wind and water, and the selection techniques of suitable residential site for achieving energy conservation. The second part proposes the energy conscious design process of residential site development and suggests building forms of single family and multi -family housings. The three multi - family housing prototypes haute been developed which are most energy -effective ; the linear type, the cut -de -sac type and the atrium type. In the process of creating the prototypes, energy conserving design criteria have been also developed. These criteria can be used to develop some other alternative prototypes.

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Impact of Energy Relaxation of Channel Electrons on Drain-Induced Barrier Lowering in Nano-Scale Si-Based MOSFETs

  • Mao, Ling-Feng
    • ETRI Journal
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    • 제39권2호
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    • pp.284-291
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    • 2017
  • Drain-induced barrier lowering (DIBL) is one of the main parameters employed to indicate the short-channel effect for nano metal-oxide semiconductor field-effect transistors (MOSFETs). We propose a new physical model of the DIBL effect under two-dimensional approximations based on the energy-conservation equation for channel electrons in FETs, which is different from the former field-penetration model. The DIBL is caused by lowering of the effective potential barrier height seen by the channel electrons because a lateral channel electric field results in an increase in the average kinetic energy of the channel electrons. The channel length, temperature, and doping concentration-dependent DIBL effects predicted by the proposed physical model agree well with the experimental data and simulation results reported in Nature and other journals.

자연에너지와 건축조경계획

  • 조균형
    • 태양에너지
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    • 제13권2_3호
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    • pp.22-29
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    • 1993
  • 건물의 실내 온열환경과 에너지 소비량은 건물 주변에 형성되는 미기후에 의해 일차적인 영향을 받게 된다. 따라서 미기후의 조건을 완화 혹은 순화시켜 가능한 건물 실내조건과의 차이를 줄이는 것이 건물의 에너지절약효과를 향상시키는 첫단계이며 자연에너지를 이용한 쾌적한 거주 환경조성에 기여하는 방법이 된다. 이와같은 관점에서, 본고에서는 대지내 경관을 아름답게 해주면서 또한 미기후 형성에 그 영향도가 매우 높은 조경요소들에 대해 그 종류 및 기후조절기능을 분석하고 조경계획의 주안점을 건물 열부하에 영향을 주는 항목별로 나누어 조사, 정리하여 바람직한 조경 계획을 수립하는데 기초자료를 제시하였다.

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환경보호와 목재의 이용 (Environmental Conservation and Wood Utilization)

  • 장상식
    • Journal of the Korean Wood Science and Technology
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    • 제22권3호
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    • pp.51-58
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    • 1994
  • Environmental conservation has become one of the greatest concerns of all the people in the world. This issue is related to wood utilization in two major view points such as carbon dioxide emitted by the use of manufacturing energy and absorbed during the growth of trees. Wood construction materials require less manufacturing energy, which, in turn, means less carbon dioxide emission. In addition, wood keeps absorbed carbon in itself as far as it is not burnt. Therefore, wood is environmentally superior to other materials in terms of potential effects on atmospheric carbon dioxide. As examples of the environmental effect of wood utilization, the following two results were obtained: 1) If wood construction becomes popular in Korea as in Japan, more than 24% of carbon dioxide emission during construction of residential housings can be reduced: and 2) If aluminum windows are substituted by wood windows, more than 19% of carbon dioxide emission can be reduced. If the principle of "cut and plant" is kept well, wood is the best construction material for environmental protection as well as human residence.

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한국인의 에너지 절약의식이 에너지 절약행동에 미치는 영향 분석 - 에너지관련 방송의 유형별 매개효과 - (An Analysis on the Effects of Energy Conservation Consciousness on Korean Energy Saving Behavior - Through Mediating by Energy-Relating Broadcasting Type -)

  • 박중일;박중구;이중호
    • 방송공학회논문지
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    • 제23권6호
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    • pp.836-854
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    • 2018
  • 본 논문은 한국인의 에너지 절약의식이 TV 등 에너지관련 방송매체의 매개효과를 통해 에너지 절약행동에 미치는 영향을 분석하였다. 각 변수에 대한 구조화된 설문조사를 기반으로 Hayes(2013)의 PROCESS Macro를 이용한 회귀분석을 실시하였다. 분석의 결과 에너지 절약의식이 높은 사람일수록 에너지 절약행동을 많이 하고 있으며, 특히 에너지관련 방송미디어에 노출될수록 에너지 절약행동을 활발하게 하는 것으로 나타났다. 방송매체별 효과를 분석한 결과 에너지 공익광고 및 캠페인을 통한 효과가 15.3%로 가장 컸으며, 다음으로 에너지 뉴스를 통한 효과가 12.1%로 분석되었다. 이에 비해 에너지 다큐멘터리는 에너지 절약행동에 영향을 미치지 못한 것으로 나타났다. 이에 따라 에너지 절약행동을 활성화하기 위해서는 에너지관련 방송의 빈도를 높이면서, 에너지 절약행동을 유도할 수 있는 에너지 다큐멘터리를 강화하는 방송정책의 수립이 필요하다. 또한 향후 에너지 절약행동에 의한 실제 절약정도를 나타내는 전력사용 영수증이나 유류비 사용액 등 실증자료를 통해 분석의 신뢰도를 높이는 노력이 필요하다.

아트리움의 에너지 절약(節約)과 환경조절기능(環境調節機能)에 관한 연구(硏究) (The Effect of Atrium on Energy Conservation and Environmental Control of a Building)

  • 이언구;이현호
    • 태양에너지
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    • 제13권2_3호
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    • pp.5-11
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    • 1993
  • 이 논문은 최근들어 보급이 확대되고 있는 아트리움(Atrium)을 이용한 건물에 있어서, 아트리움의 가장 기본적 인 기능인 에너지절약 효과와 환경조절효과가 거의 실효를 거두지 못하고 오히려 환경의 악화와 에너지소비 증가로 나타나는 점을 고려하여, 아트리움의 환경조절기능에 대한 기초사항을 체계적으로 정리하고 에너지절약 성능을 정량적으로 분석하여 건축설계시 적용할 수 있는 아트리움의 설계기법을 제시함으로써 아트리움을 통한 건물의 에너지절약 효과를 극대화하고 쾌적환경을 조성하는 기초자료를 제공하고자 한다.

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공동주택 열교환기의 성능 및 에너지소비 특성 평가 (Evaluation of the Performance and the Energy Consumption Characteristics of Heat Recovery Ventilators in Apartments)

  • 김상민;박병윤;손장열
    • 설비공학논문집
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    • 제17권5호
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    • pp.496-504
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    • 2005
  • Heat recovery ventilators (HRV) are developed in order to satisfy both energy conservation and the improvement of indoor air quality as an alternative for current natural ventilation systems and local mechanical ventilation systems in kitchens and bathrooms. However, the performance of HRV system and the consequent effect on heating and cooling energy saving have not been sufficiently validated quantitatively in case of the application of HRVs in real residences. In this study, field measurement and computer simulation were conducted in both summer and winter period to assess the performance and validate energy conservation effect of HRVs. Under the Korea weather condition, average total heat recovery efficiency was $27\%$ in summer and $46\%$ in winter. According to the field measurement, HRV system can save the energy by $10\%$ in summer and 15$\%$ in winter. Furthermore, according to the simulation assessment, HRV system can save the energy by $17\%$ in summer and $17\%$ in winter.

Toward residential building energy conservation through the Trombe wall and ammonia ground source heat pump retrofit options, applying eQuest model

  • Ataei, Abtin;Dehghani, Mohammad Javad
    • Advances in Energy Research
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    • 제4권2호
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    • pp.107-120
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    • 2016
  • The aim of this research is to apply the eQuest model to investigate the energy conservation in a multifamily building located in Dayton, Ohio by using a Trombe wall and an ammonia ground source heat pump (R-717 GSHP). Integration of the Trombe wall into the building is the first retrofitting measure in this study. Trombe wall as a passive solar system, has a simple structure which may reduce the heating demand of buildings significantly. Utilization of ground source heat pump is an effective approach where conventional air source heat pump doesn't have an efficient performance, especially in cold climates. Furthermore, the type of refrigerant in the heat pumps has a substantial effect on energy efficiency. Natural refrigerant, ammonia (R-717), which has a high performance and no negative impacts on the environment, could be the best choice for using in heat pumps. After implementing the eQUEST model in the said multifamily building, the total annual energy consumption with a conventional R-717 air-source-heat-pump (ASHP) system was estimated as the baseline model. The baseline model results were compared to those of the following scenarios: using R-717 GSHP, R410a GSHP and integration of the Trombe wall into the building. The Results specified that, compared to the baseline model, applying the R-717 GSHP and Trombe wall, led to 20% and 9% of energy conservation in the building, respectively. In addition, it was noticed that by using R-410a instead of R-717 in the GSHP, the energy demand increased by 14%.