• Title/Summary/Keyword: Incident Radiation

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A Study on the Optimal Installation of Solar Thermal System in Korea (국내 태양열시스템의 최적 설치에 관한 연구)

  • Jo, Dok-Ki;Kang, Young-Heack
    • 한국태양에너지학회:학술대회논문집
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    • 2008.11a
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    • pp.208-213
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    • 2008
  • Since The measured solar radiation incident on tilted surfaces by all directions has been widely used as important solar radiation data in installing solar flat-plate collectors. To maximize the incident beam radiation, the slope, which is the angle between the plane of the surface in question and the horizontal, and the solar azimuth angles are needed for these solar thermal systems. This is because the performance of the solar thermal system is much affected by angle and direction of incident rays. Recognizing those factors mentioned above are of importance, actual experiment has been performed in this research to obtain the angle of inclination with which the maximum incident rays can be absorbed. The results obtained in this research could be used in installing optimal solar flat-plate collectors.

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A Study on the Optimal Installation of Solar Photovoltaic System in Korea (국내 태양광발전시스템의 최적 설치에 관한 연구)

  • Jo, Dok-Ki;Kang, Yong-Heack;Lee, Euy-Joon;Auh, Chung-Moo
    • Journal of the Korean Solar Energy Society
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    • v.24 no.3
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    • pp.19-25
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    • 2004
  • The measured solar radiation incident on tilted surfaces by all directions has been widely used as important solar radiation data in installing photovoltaic modules. To maximize the incident beam radiation, the slope, which is the angle between the plane of the surface in question and the horizontal, an4 the solar azimuth angles are needed for these solar photovoltaic systems. This is because the performance of the solar photovoltaic systems is much affected by angle and direction of incident rays. Recognizing those factors mentioned above are of importance, actual experiment has been performed in this research to obtain the an91e of inclination with which the maximum incident rays can be absorbed. The results obtained in this research could be used in installing optimal photovoltaic modules.

Analysis of Maximum Solar Radiation on Inclined Surfaces in Korea (국내 최대 경사면일사량 분석)

  • Jo, Dok-Ki;Yun, Chang-Yeol;Kim, Kwang-Deuk;Kang, Young-Heack
    • 한국태양에너지학회:학술대회논문집
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    • 2009.04a
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    • pp.3-7
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    • 2009
  • The amount of incident rays over inclination according to direction has been widely utilized as important data in installing solar thermal systems. To optimize the incident solar radiation, the slope, that is the angle between the plane surface in question and the horizontal, and the solar azimuth angles are needed for these solar thermal systems. This is because the performance of the solar thermal systems in much affected by angle and direction of incident rays. Recognizing that factors mentioned above are of importance, actual experiment on the moving route of the sun have been performed in this research to obtain the angle of inclination with which the maximum incident rays can be absorbed. After all, the standard for designing highly optimized solar thermal systems will be provided for designers and employees working in the solar collector related industries.

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Analysis of Maximum Solar Radiation on Inclined Surfaces for the Installation of Solar Thermal Systems in Korea Using the Optimum Installation Angle (국내 태양열시스템 설치를 위한 시스템 최적 설치각 산출을 통한 최대 경사면일사량 분석)

  • Jo, Dok-Ki;Kang, Young-Heack
    • Journal of the Korean Solar Energy Society
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    • v.29 no.2
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    • pp.47-54
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    • 2009
  • The amount of incident rays over inclination according to direction has been widely utilized as important data m installing solar thermal systems. To optimize the incident solar radiation, the slope, that is the angle between the plane surface in question and the horizontal, and the solar azimuth angles are needed for these solar thermal systems. This is because the performance of the solar thermal systems in much affected by angle and direction of incident rays. Recognizing that factors mentioned above are of importance, actual experiment on the moving route of the sun have been performed in this research to obtain the angle of inclination with which the maximum incident rays can be absorbed. After all, the standard for designing highly optimized solar thermal systems will be provided for designers and employees working in the solar collector related industries.

Comparative Analysis of Terminology and Classification Related to Risk Management of Radiotherapy

  • Oh, Yoonjin;Kim, Dong Wook;Shin, Dong Oh;Koo, Jihye;Lee, Soon Sung;Choi, Sang Hyoun;Ahn, Sohyun;Park, Dong-wook
    • Progress in Medical Physics
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    • v.27 no.3
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    • pp.131-138
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    • 2016
  • We analyzed the terminology and classification related to the risk management of radiation treatment overseas to establish the terminology and classification system for Korea. This study investigated the terminology and classification for radiotherapy risk management through overseas research materials from related organizations and associations, including the IAEA, WHO, British group, EC, and AAPM. Overseas risk management commonly uses the terms "near miss", "incident", and "adverse event", classified according to the degree of severity. However, several organizations have ambiguous terminologies. They use the term "near miss" for events such as a near event, close call, and good catch; the term "incident" for an event; and the term "adverse event" for the likes of an accident and an event. In addition, different organizations use different classifications: a "near miss" is generally classified as "incident" in most cases but not classified as such in BIR et al. Confusion might also be caused by the disunity of the terminology and classification, and by the ambiguity of definitions. Patient safety management of medical institutions in Korea uses the terms "near miss", "adverse event", and "sentinel event", which it classifies into eight levels according to the severity of risk to the patient. Therefore, the terminology and classification for radiotherapy risk management based on the patient safety management of medical institutions in Korea will help in improving the safety and quality of radiotherapy.

The Study on Optimum Installation angle of Photovoltaic Arrays using the Expert System (전문가시스템을 이용한 태양광 어레이의 최적설치 각도에 관한 연구)

  • Yu, Gwon-Jong;Lee, Yo-Han;So, Jung-Hun;Seong, Se-Jin;Yu, Byung-Gyu
    • Journal of the Korean Solar Energy Society
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    • v.27 no.3
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    • pp.107-115
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    • 2007
  • The measured solar radiation incident on tilted surfaces has been widely used as important solar radiation data in installing photovoltaic arrays. To optimize the incident solar radiation, the slope, that is the angle between the plane surface in question and the horizontal, and the solar azimuth angles are needed for these solar photovoltaic systems. This is because the performance of the solar photovoltaic systems is much affected by angle and direction of incident rays. The expert system can predict the optimum installation angle of photovoltaic arrays with those factors.

Analysis of Solar Radiation on Inclined Surfaces with various Directions for the Installation of Solar Thermal Systems (태양열시스템 설치를 위한 방위별 경사면일사량 분석)

  • Jo, Dok-Ki;Kang, Young-Heak
    • 한국신재생에너지학회:학술대회논문집
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    • 2008.10a
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    • pp.171-173
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    • 2008
  • The amount of incident solar rays on inclined surfaces with various directions has been widely utilized as important data in installing solar collector, hot water system, and designing solar buildings and house. This is because the performance of the solar energy applied systems is much affected by angle and direction of incident rays. Recognizing those factors mentioned above are of importance, actual experiment has been performed in this research to obtain the angle of inclination with which the maximum incident rays can be absorbed. The results obtained in this research could be used in designing optimal solar thermal systems.

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A Study on the Analysis of Solar Radiation on Inclined Surfaces for the Installation of PV Systems (PV시스템 설치를 위한 경사면 태양광에너지 분석에 관한 연구)

  • Jo, Dok-Ki;Kang, Young-Heack
    • Journal of the Korean Solar Energy Society
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    • v.27 no.1
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    • pp.11-17
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    • 2007
  • The amount of incident rays over inclination according to direction has been widely utilized as important data in installing photovoltaic systems. This is because the performance of the photovoltaic systems in much affected by angle and direction of incident rays. Recognizing that factors mentioned above are of importance, actual experiment on the moving route of the sun have been performed in this research to obtain the angle of inclination with which the maximum incident rays can be absorbed. After all, the standard for designing highly optimized photovoltaic systems will be provided for designers and employees working in the photovoltaic module related industries.