• Title/Summary/Keyword: Man-chul

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Development of the Road Surface's Reflection Property Measuring System for Analysis of Road Lighting (도로 조명 분석을 위한 도로 포장 시료의 반사 특성 측정)

  • Sim, Sang-Man;Kim, Gi-Hoon;Kim, Hoon;Ji, Chul-Geun
    • Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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    • 1998.11a
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    • pp.147-150
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    • 1998
  • 도로 표면의 반사특성의 측정은 휘도 계산에 있어서 매우 중요하다. 이 연구에서는 도로 면의 반사특성을 측정할 수 있는 장치를 개발하고, 이를 이용하여 콘크리트 시료의 반사 특성을 측정하였다. 측정 결과를 이용하여 도로조명에 의한 휘도 분포를 계산한 결과, 측정값에 가까운 결과를 얻었다.

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The Economic Dispatch for Power System Considering Cogeneration Systems (열병합 발전계통을 고려한 전력계통의 경제급전)

  • Kim, Hak-Man;Cha, Jae-Sang;Shin, Myong-Chul
    • Proceedings of the KIEE Conference
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    • 1995.07b
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    • pp.531-534
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    • 1995
  • This paper presents mathematical formulation of economic dispatch problem for power system considering cogeneration systems. For exact mathematical formulation, conceptual division technique is introduced. Simulation is conducted to power system including two cogeneration systems.

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The Valuation of Economical Efficient for Construction Cost of Ground Electrodes in Distribution Lines (배전선로용 접지전극 재료별 공사비의 경제성 평가)

  • Shim, Keon-Bo;Kim, Kung-Chul;Lee, Hyung-Su;Park, Jae-Duck;Park, Sang-Man
    • Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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    • 2006.05a
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    • pp.293-297
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    • 2006
  • To receive size of same ground resistance by form of construction work of ground electrode, there is difference of amount or price of used resources, and should construct ground electrode little more effectively because appear to differ in life period according to nature of ground electrode resources, but should consider economical efficient.

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