• 제목/요약/키워드: GHP

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산요전기 국내 GHP시장 점유율 1위 도전

  • 에너지절약전문기업협회
    • ESCO지
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    • 통권34호
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    • pp.22-23
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    • 2005
  • 산요전기는 16년 동안 GHP기술개발에 매진해 현재 국내외에서 이 분야의 선두기업이다. 지난 96년부터 한국 공조시장에 진출, 4년 전부터 본격적인 마케팅을 펼치고 있는 산요전기. 한국시장 점유율 1위를 목표로 하고 있는 산요전기를 지난 25일 한국 냉동$\cdot공조$\cdot위생기자전에서 만났다.

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수도권 그린히트 프로젝트의 경제적 타당성 분석 (Economic Feasibility Analysis of the Metropolitan Area Green Heat Project)

  • 김상기;김래현;유승훈
    • 에너지공학
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    • 제24권1호
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    • pp.32-41
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    • 2015
  • 에너지 이용 효율화를 꾀하면서 경영이 어려운 집단에너지사업자에게 저가 열원 제공을 위해, 수도권 서부 지역의 제철소, 발전소, 쓰레기 매립지 등에서 발생하는 미이용 열을 수거하여 집단에너지 사업자에게 공급하는 수도권 Green Heat Project(이하 GHP 사업)의 시행이 고려되고 있다. 이에 GHP 사업의 시행 여부에 대한 판단을 위해 GHP 사업의 경제적 타당성 분석이 요구되고 있다. 본 논문에서는 GHP 사업의 경제적 편익으로 열 공급편익, 생산원가 절감편익, 온실가스 저감편익, 대기질 개선편익의 4가지를 상정하여 평가한 후 경제적 타당성을 분석하고자 한다. 경제적 타당성 분석에서 비용으로는 사업착수 후 3년 동안의 투자비와 운영기간 30년 동안의 운영비가 발생한다. 분석결과 순현재가치는 1조 2,693억원으로 추정되어 0을 상회하여 GHP 사업은 경제적 타당성을 확보한다. 또한 편익/비용 비율은 1.72로 계산되어 1.0보다 크기에 경제성 분석을 통과한다. 마지막으로 내부수익률은 24.26%로 산정되어 사회적 할인율 5.5%를 초과하므로 GHP 사업은 사회적으로 바람직하다. 따라서 GHP 사업을 즉시 시행하는 것이 바람직하다.

대학 건물에 설치된 가스엔진구동 히트펌프(GHP) 실외기의 조닝 계획에 따른 운전 특성과 경제적 효과 (The Economic Effects and Operating Characteristics of the Outdoor Unit in Accordance with Zoning Plan of Gas Engine Driven Heat Pump Installed in the University Building)

  • 박강현;김수민
    • 설비공학논문집
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    • 제24권1호
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    • pp.70-76
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    • 2012
  • The purpose of this study is to analyze of the operating characteristics of the Gas engine driven Heat Pump(GHP) and to reduce maintenance costs through the most Economical plan. As the zoning modifications that have economic effects were confirmed. Applications should be made with a similar purpose of the space. The combination of a modified space has led to reduced operating hours of the outdoor unit. The reduction of the outdoor unit operating hours, reducing maintenance costs accordingly. When analyzed at six years have elapsed, the amount of savings through zoning modifications is more than an additional construction cost. During the design phase, cost-effective operation of the GHP is required for the proper zoning plan.

Genetic Distances and Variations of Three Geographic Hairtail Populations Identified by PCR Analysis

  • Yoon, Jong-Man
    • 한국발생생물학회지:발생과생식
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    • 제18권3호
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    • pp.167-172
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    • 2014
  • In the present study, muscle tissues were obtained separately from individuals from Atlantic hairtail population (AHP), Gunsan hairtail population (GHP) and Chinese hairtail population (CHP), respectively. The seven decamer primers were used to generate the shared loci, specific, unique shared loci to each population and shared loci by the three hairtail populations. Here, averagely, a decamer primer generated 64.7 amplified products per primer in the AHP population, 55.7 in GHP population and 56.4 in CHP population. The number of unique shared loci to each population and number of shared loci by the three populations generated by genetic analysis using 7 decamer primers in AHP, GHP and CHP population. 119 unique shared loci to each population, with an average of 17 per primer, were observed in the AHP population, and 28 loci, with an average of 4 per primer, were observed in the CHP population. The hierarchical dendrogram point out three main branches: cluster 1 (ATLANTIC 01 ~ ATLANTIC 07), cluster 2 (GUNSAN 08 ~ GUNSAN 14) and cluster 3 (CHINESE 15 ~ CHINESE 21). The shortest genetic distance displaying significant molecular difference was between individuals' CHINESE no. 16 and CHINESE no. 18 (0.045). In the long run, individual no. 01 of the AHP population was most distantly related to CHINESE no. 19 (genetic distance = 0.430). Consequently, PCR analysis generated on the genetic data displayed that the geographic AHP population was widely separated from CHP population, while individuals of CHP population were fairly closely related to those of GHP population.

냉방기기별 경제성 평가 (Economic Evaluation of Various Cooling Systems)

  • 김영일;조금남
    • 대한설비공학회:학술대회논문집
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    • 대한설비공학회 2008년도 하계학술발표대회 논문집
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    • pp.214-219
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    • 2008
  • In this study, medium capacity EHP and GHP for air-conditioning a building with a floor area of $1,200\;m^2$ are compared economically. To consider all the factors of initial and operation costs effectively, an annual equal payment method is proposed. For the initial cost, equipment, construction, installation, electric facility, financial subsidy and tax cut are considered. Basic electricity, energy(electricity and gas), space charge, labor, insurance and repair are considered for the operation cost. Under the assumptions made in this study, overall cost of EHP is less than that of GHP. However, different outcome may result if different assumptions are made. This study is useful for performing an economic evaluation of various air-conditioning systems.

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냉방기기 사용량과 특성을 고려한 가스냉방기기의 전력대체 효과 분석 (Analysis of Electric Substitution Effects by the Gas Consumption and Characteristics of Gas Cooling System)

  • 박래준;송경빈
    • 전기학회논문지
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    • 제61권5호
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    • pp.669-675
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    • 2012
  • Recently, the amount of electrical heat pump(EHP), a electrical conditioning equipment, is sharply increasing due to the luxury and multi-story trend of building. Accordingly, the cooling load that occupying substantial part of summer electric consumption has increased dramatically, making difficulties in domestic supply of electricity in summer. There are some efforts to replace it with an alternative cooling equipment such as gas heat pump(GHP), a gas cooling equipment, in order to solve the problem of summer electricity supply through reducing the summer electricity peak. It is rare, however, to find studies on the actual effects of GHP on the reduction of summer electricity peak. This study, therefore, estimated the effects of the GHP on the summer electricity peak by the gas consumption and characteristics of gas cooling systems. In addition, electric substitution effects by gas cooling systems were analyzed through case studies in the summer of 2010.

산업폐수열원이용 GHP 시스템 개발 (Development of GHP System Using Industrial Waste Water Source)

  • 장기창;박준택;박성룡
    • 한국에너지공학회:학술대회논문집
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    • 한국에너지공학회 2002년도 추계 학술발표회 논문집
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    • pp.53-58
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    • 2002
  • 선진국에서는 산업체의 1차 에너지소비가 전체 에너지소비의 약 30~40%이고, 이 에너지의 약 70~80%가 공정용 열에너지로 사용되고 있다. 이러한 공정용 열의 온도범위를 파악하는 것은 매우 중요하지만 산업공정의 다양성 때문에 평가하기에는 많은 어려움이 따른다. 그러나 일반적으로 산업체 열에너지의 60% 이상은 30$0^{\circ}C$ 이하의 온도이며, 약 20~30%는 15$0^{\circ}C$ 이하이다.(중략)

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