• Title, Summary, Keyword: 내장재

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A Fire Test Measuring the Heat Release Rate of Railway Car Interior Materials Satisfying the Korean Safety Guideline (안전기준을 만족하는 철도차량 내장재의 화재 열방출율 측정시험)

  • Park, Won-Hee;Lee, Duck-Hee;Jung, Woo-Sung
    • Fire Science and Engineering
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    • v.23 no.4
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    • pp.40-49
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    • 2009
  • A large-scale fire test was conducted for interior materials from a vehicle installed within a fire test room (ISO 9705). The interior materials are satisfying the Korean guideline for the safety of rail vehicles, where the guideline has taken effect since December 2004 in Korea. The output of ignition source (gas burner) was increased in several controlled steps. The objectives of this test are to assess the fire performance in terms of ignition and flame spread on interior lining materials and to provide data on an enclosure fires involving train interior materials that grow to flashover. These data will be used to develop and calibrate models for fire growth on the interiors of the railway vehicle.

The Acoustic-structural Coupling Analysis of the Passenger Cavity Considering the Characteristic of a Roof/Airgap/Trim (루프/에어갭/내장재 효과를 고려한 차실 음향-구조 연성해석)

  • 이장무;강상욱;김석현
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • pp.84-90
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    • 1996
  • 일반적으로 차실 음향 공동과 차체 팬널이 연성이 되는 계에 대한 소음 연성해석을 위한 해석 모델은 팬널과 공동이 직접적으로 연성이 되는 것으로 모델링되었다. 그러나 루프와 같은 팬널이 차실과 연성이 되는 경우, 루프의 진동은 차실에 직접적으로 전달되지 않고 루프 하단에 존재하는 갭과 내장판을 통하여 차실 소음에 영향을 미친다. 루프와 내장재 사이에 있는 갭의 매질은 주로 공기 도는 흡음재이다. 본 논문에서는 이러한 음향 구조 연성계를 이론적으로 해석 가능한 1차원 모델로 근사화하여 갭의 간격, 갭의 매질 특성, 내장재의 물성치 등의 변화에 따른 공동 내의 음향 응답 특성을 알아보고자 한다. 또한 위 결과를 에어갭을 고려한 3차원 차실 모델에 적용하고, 1/2 차실 모델에 대한 실험을 통하여 에어갭과 내장재의 효과를 검증한다.

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A Study on Combustion Characteristic of Building Materials (건축용 내장재 연소 특성에 관한 연구)

  • Song, Jae-Yong;Kim, Jin-Pyo;Cho, Young-Jin;Park, Nam-Kyu
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • pp.16-19
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    • 2011
  • 본 논문은 건축물 내장재로 사용되는 폴리우레탄폼 및 스티로폼의 연소특성에 관하여 연구하였다. 연소특성 평가를 위하여 폴리우레탄폼 및 스티로폼을 대상으로 연소실험을 수행하였으며, 건축용 내장재 사용의 적합성 평가를 위하여 콘칼로리미터법을 이용한 열방출률 및 연기밀도를 측정 분석하였다. 연소특성 실험 결과, 일반 재질의 폴리우레탄폼은 착화와 동시에 급속히 연소되는 특성을 나타내었으며, 난연 처리된 폴리우레탄폼은 착화와 동시에 자체적으로 소화되는 특성을 나타내었다. 스티로폼은 착화 이후 서서히 연소 확대되며, 이후에는 가장 격렬히 연소되는 특성을 나타내었다. 방출률 및 연기밀도는 한국산업규격 KS F ISO 5660-1 및 국제해사기구의 FTP Code를 만족하지 못하는 것으로 평가되었으며, 이러한 결과로 볼 때, 폴리우레탄폼 및 스티로폼은 건축용 내장재로 사용하기 부적합한 것으로 판단된다.

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A Study on the Volatile Organic Compounds Analysis Method for Visible Light-Responsive Photocatalyst Treated Vehicle Interior Materials (가시광촉매가 처리된 자동차 내장재의 VOC 분석방법에 대한 연구)

  • Choi, Sei Young
    • Elastomers and Composites
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    • v.48 no.3
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    • pp.221-224
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    • 2013
  • In this study, VOC analysis method of vehicle interior materials and parts treated to visible-light responsive photocatalyst was tested by sample bag filled with air instead of nitrogen. As a result, when analyzed VOC of vehicle interior materials and parts, sample bag filled with the nitrogen was not confirmed of effect reducing VOCs and formaldehyde. However, VOCs and formaldehyde of sample bag that was filled with air instead of nitrogen, decreased significantly. Reaction effect for visible light-responsive photocatalyst was confirmed that sample bag of vehicle interior materials and parts should be filled with air instead of nitrogen.

차량 BSR 발생문제 및 개선방안

  • No, Jeong-Uk;Jo, Ho-Yeong
    • Journal of the KSME
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    • v.52 no.1
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    • pp.32-36
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    • 2012
  • 차량에서의 BSR은 주로 내장재에서 발생하는데, 최근의 복잡한 제품 디자인, 폴리머 계열 소재 사용 및 전기자동차 보급과 맞물려 증가하는 추세이다. 특히 사용 초기에는 나타나지 않다가 이음새, 체결부 및 재료의 열화로 인해 사용 중 발생하는 일이 더 큰 문제가 되고 있다. 이 글에서는 차량 내장재의 BSR 발생문제 및 개선방안에 대해 소개하고자 한다.

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A Fire Hazard Assessment of Interior Finish Materials (건물 내장재의 화재위험성 평가 방법)

  • 김운형
    • Fire Science and Engineering
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    • v.12 no.2
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    • pp.17-28
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    • 1998
  • To propose a new fire hazard assessment criteria of interior finish materials, the properties and incident heat flux of interior finish materials in a compartment fires are investigated and compared by using flame spread model developed by Quintiere. The properties considered on which fire growth depend are including flame heat flux and thermal inertia, lateral flame spread parameter, heat of combustion and effective heat flux and thermal inertia, lateral flame spread parameter, heat of combustion and effective heat of gasfication. ISO Room Corner Test(9705) is applied in the model and the time for total energy release rate to reach 1MW is examined. The results are compared for the 24 different materials tested by EUREFIC. Dimensionless parameter a, b and ${\gamma}$b are used to develope a new method in which fire hazard of interior finish materials can be classified resulting from correlation between b and flashover time. Results show that if b greater than about zero, flashover time in the ISO Room-Corner Test is principally proportional to ignition time only.

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Characterization of Volatile Organic Compounds Emission from Interior Materials of Railway Passenger Cabin (철도차량용 내장재의 휘발성유기화합물 방출특성 분석)

  • Cho, Young-Min;Park, Duck-Shin;Kwon, Soon-Bark;Park, Eun-Young
    • Journal of the Korean Society for Railway
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    • v.11 no.2
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    • pp.182-187
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    • 2008
  • The environmental significance of indoor air quality is gaining more attention. Especially, the contamination of indoor air by volatile organic chemicals (VOCs) has become a serious environmental concern. We investigated the VOCs emissions from some interior materials used in the conventional railway passenger cabin. The seat cover and the flooring of cabins were used as testing materials, and they were put in a clean environmental chamber. The temperature and relative humidity was kept at $25{\pm}1^{\circ}C$ and $50{\pm}5%$, respectively. It was found that these interior materials emitted significant amount of VOCs under constantly ventilated condition. The flooring emitted more halogenated VOCs than the seat cover, because it is made of PVC, which contains many chlorine atoms. However, the emission gradually decreased over time. Because the VOCs emission from interior materials may threaten the health of passengers in the cabin, interior materials emitting less VOCs should be used.

A Study on the Reduction of VOCs Generated from Vehicle Interior Parts and Materials Using Visible-light Responsive Photocatalyst (가시광촉매를 이용한 자동차 내장재로부터 발생하는 VOCs의 저감연구)

  • Choi, Sei-Young;Yang, Seung-Gi
    • Elastomers and Composites
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    • v.48 no.3
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    • pp.209-215
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    • 2013
  • On this study, visible-light responsive photocatalyst prepared by sol-gel method was evaluated the effect of the reduction of volatile organic compounds (VOCs) occurred in vehicle interior and its property was examined. According to UV/visible result, visible-light responsive photocatalyst was found that the UV-visible peak is red shift at 420nm, is sensitive in the visible light region. With vehicle interior parts and materials coated visible-light responsive photocatalyst, VOCs was measured by GC/MS. Measuring the VOCs generated from vehicle interior parts and materials, the reduction of VOCs was confirmed.

Fire Test of Old Type Interiors of Subway Vehicle in ISO 9705 Room (ISO 9708 룸 설비를 이용한 구형 지하철 내장재 화재시험)

  • Lee, Duck-Hee;Park, Won-Hee;Jung, Woo-Sung;Hwang, Jung-Ho
    • Journal of the Korean Society for Railway
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    • v.13 no.5
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    • pp.481-487
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    • 2010
  • A room scale fire test was done for interior materials from a subway vehicle installed within an ISO 9705 fire test room. The interior materials are the old ones which were made before the new fire safety guideline of subway vehicles. The output of ignition burner was increased in controlled steps to CEN/TS 45545-1. The objectives of this interior fire test are to assess the fire performance in terms of ignition and flame spread on interior lining materials and to provide data on an enclosure fires involving subway vehicle interior materials that grow to flashover. Temperatures, heat flux and heat release rate variations verse time of the test are measured. Heat release rate is compared with that of calculated by modified flaming area based summation method. These test results will be used for verification of CFD fire simulation of full subway vehicle.