• Title/Summary/Keyword: 자연형 태양열 시스템

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A Research on the Actual Condition of Passive Solar Post Offices (자연형 태양열 우체국사 실태 조사연구)

  • Lim, Sang-Hoon;Auh, P.Chung-Moo;Jeon, Hong-Seok
    • Solar Energy
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    • v.10 no.1
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    • pp.80-91
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    • 1990
  • The purpose of this study is to provide materials necessary for planning and designing of passive solar post offices by comparing and analyzing the satisfaction degree on old passive solar post office environment characteristics according to the post office pattern. In conclusion, passive solar systems are effective and economical when they are applied to post offices for heating systems.

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Study on the operating characteristics and system modelling of loop type thermosyphon for using solar thermal energy (태양열을 이용한 상변화 Thermosyphon의 작동특성과 시스템 모델링에 관한 연구)

  • 강명철;이윤준;윤현식;강용혁;윤환기;유창균;이동규
    • Proceedings of the Korea Society for Energy Engineering kosee Conference
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    • 1999.11a
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    • pp.187-192
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    • 1999
  • 전 세계적으로 무분별한 화석에너지 사용에 따른 환경오염 문제와 에너지원의 고갈로 인하여 태양에너지는 대체에너지원으로 가장 유용한 에너지원이다. 대체에너지원으로의 태양에너지는 다양한 이용분야가 개발되어 실용화되고 있는데 그 중에서 온수급탕을 위한 연구로 자연형 태양열 시스템과 상변화형 시스템이 주류를 이루고 있다. 자연형 시스템의 개발과 실용화로 얻어진 기술을 바탕으로 기후에 적합한 상변화를 이용하는 시스템 개발을 추진하고 있는 실정이다.(중략)

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A Performance Study on Direct Gain Passive Solar School Buildings (직접획득형 자연형태양열학교 교사의 성능분석 연구)

  • Lim, Sang-Hoon;Lee, Nam-Ho;Lim, Bok-Kyu
    • Solar Energy
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    • v.11 no.3
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    • pp.37-43
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    • 1991
  • Following the oil crisis in 1979, there have been surge of movements by the government in Korea to conserve petroleum-based energy in every sector of society. One of these movements was the application of passive solar technologies into the construction of school buildings. Various passive designs are developed paying special regard to architectural and climatic factors. This paper is related to the application of the passive solar technology(direct gain system) to high school buildings.

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Thermal Performance Analysis and Optimization of Passive Solar System (자연형 태양열시스템의 열성능해석 및 최적화)

  • Lee, Won-Keun
    • Solar Energy
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    • v.12 no.2
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    • pp.51-61
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    • 1992
  • A numerical study on the Trombe wall system, a kind of passive solar systems, has been peformed. The system is modelled as the 2-dimensional steady laminar flow with the natural convection. The PHOENICS code was employed to analyse the performance variation due to the change in the geometrical factor. The mass flow rate and the maximum temperature are changed by the variations in the width of the vents, the width between the window and the wall, and the location of the vents. And there exists the optimal condition to maximize the utilization factor. Further precise analysis has been performed to show the optimal geometry with regard to the above three factors.

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Design of Telecommunications Office Building with Passive Solar Schemes (태양열이용 전화국 기본 설계 연구)

  • Korean Solar Energy Society, Korean Solar Energy Society
    • Solar Energy
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    • v.12 no.1
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    • pp.40-47
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    • 1992
  • The present study has been carried out to investigate various passive solar technologies for the possible application to telecommunications office buildings. HVAC systems utilizing the solar energy are analyzed in this regard to elicit the most feasible design. The proposed design is unique, for it has been devised to promote the working spirit with an efficient space planning as well.

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Experimental Study on the Thermal Performance of Passive Solar Trombe Wall System (자연형태양열 트롬월 축열벽 시스템의 열성능 특성 실측 분석 연구)

  • Yoon, Jong-Ho;Baek, Nam-Choon;Shin, U-Cheul
    • Journal of the Korean Solar Energy Society
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    • v.28 no.1
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    • pp.75-81
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    • 2008
  • Thermal performance of passive solar Trombe wall system which is applied on the south wall of KIER Zero energy Solar House has been monitored for 6 months of heating season. Based upon the long-term measurement results, extensive statistical analysis was conducted to investigate temperature profiler and heat flow pattern in Trombe wall system under actual operating condition. Heat flow characteristics depending on the time variation of day and month was clearly revealed. Heat gain and loss on the inner surface of the Trombe wall was calculated base upon measured temperature data. Those results would be utilized to improve the efficiency of new type solar storage wall system.

Numerical investigation of natural convection heat loss in solar receiver for dish concentrating system (접시형 태양열 집광시스템용 흡수기의 자연대류 열손실 수치해석 연구)

  • Kang, Myeong-Cheol;Kang, Yong-Heack;Kim, Jong-Kyu;Kim, Jin-Soo;Yoo, Seong-Yeon
    • 한국신재생에너지학회:학술대회논문집
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    • 2007.06a
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    • pp.680-683
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    • 2007
  • In dish concentrating system, natural convection heat loss occurs in cavity receiver. Heat loss mechanisms of conduction, convection, and radiation can reduce the system efficiency. To obtain the high efficiency, the receiver is to absorb the maximum of solar energy and transfer to the working fluid with maximum of heat losses. The convection heat loss is an important factor to determine the system performance. Numerical analysis of the convection heat loss of receiver was carried out for varing inclinaton angle from 0$^{\cdot}$ to 70$^{\cdot}$ with temperature range from 400$^{\cdot}C$ to 600$^{\cdot}C$ using the commercial software package, Fluent 6.0. The result of numerical analysis was comparable with convection heat loss model of solar receiver.

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