• Title/Summary/Keyword: co-simulation

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For Development of Fire Identification Simulation Comparative Analysis of Foreign Representative Simulation (화재감식 시뮬레이션 개발을 위한 국외 대표적 화재 시뮬레이션 비교 분석)

  • Lee, Jung-Hyun;Kim, Hak-Chul
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • 2011.11a
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    • pp.127-130
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    • 2011

  • 화재 시뮬레이션이라 함은 현실적으로 화재의 재현은 불가능한 관계로 컴퓨터를 이용하여 화재모델을 표현하는 방법을 취하는 것으로 이것을 시뮬레이션이라 하며, 이를 통하여 대상물의 특징을 해석 규명하여 현실화 한 것이 화재 시뮬레션이다. 나날이 증가하고 있는 화재시뮬레이션의 필요와 중요성에도 불구하고 국내에선 개발자체가 지지부진한 상태이며, 금번 화재감식 시뮬레이션의 개발에 앞서 외국에서 사용되고 있는 화재 시뮬레이션의 비교 분석을 통하여 미력이나마 시뮬레이션 개발에 도움이 되고자 한다.

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Galloping of overhead transmission lines in gusty wind

  • Ohkuma, Takeshi;Marukawa, Hisao
    • Wind and Structures
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    • v.3 no.4
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    • pp.243-253
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    • 2000

  • To develop galloping suppression devices, it is important to understand the effects of wind turbulence on galloping and to establish an evaluation method which takes 'large conductor deformations' into account. This paper introduces some findings on galloping in gusty wind obtained by numerical simulation using a model based on the Mogami Test Line of the Tokyo Electric Power Co. The equations of motion of the conductor are based on the Lagrangian formulations by Simpson, and they are made discrete in accordance with a finite element method.

  • https://doi.org/10.12989/was.2000.3.4.243 인용

Evaluation of Plant Performance during Biomass Co-firing in Pulverized Coal Power Plant (미분탄화력발전에서의 바이오매스 혼소 시 플랜트 성능특성 평가)

  • Mun, Tae-Young;Tefera, Zelalem Tumsa;Lee, Uendo;Lee, Jeung Woo;Yang, Won
    • Journal of the Korean Society of Combustion
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    • v.19 no.3
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    • pp.8-17
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    • 2014

  • The aims of this research were to evaluate effects of biomass co-firing to pulverized coal power plants and the variation of co-firing ratios on the plant efficiency related to power consumption of auxiliary system and flue gas characteristics such as production and component by process simulation based on the existing pulverized coal power plant. In this study, four kinds of biomass are selected as renewable fuel candidates for co-firing: wood pellet(WP), palm kernel shell(PKS), empty fruit bunch(EFB) and walnut shell(WS). Process simulation for various biomass fuels and co-firing ratios was performed using a commercial software. Gas side including combustion system and flue gas treatment system was considering with combination of water and steam side which contains turbines, condenser, feed water heaters and pumps. As a result, walnut shell might be the most suitable as co-firing fuel among four biomass since when 10% of walnut shell was co-fired with 90% of coal on thermal basis, flue gas production and power consumption of auxiliary systems were the smallest than those of other biomass co-firing while net plant efficiency was relatively higher than those of other biomass co-firing. However, with increasing walnut shell co-firing ratios, boiler efficiency and net plant efficiency were expected to decrease rather than coal combustion without biomass co-firing.

  • https://doi.org/10.15231/jksc.2014.19.3.008 인용 PDF KSCI