• Title/Summary/Keyword: 장판(長板)

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A Experimental Study on the Flame Retardant for Cover and Material of Electric Pad (전기장판 외피 및 부자재의 난연성에 관한 실험연구)

  • Hong, Sung-Ho;Choi, Moon-Soo;Park, Sang-Tae;Baek, Dong-Hyun
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • 2012.04a
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    • pp.15-18
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    • 2012
  • 본 논문은 전기장판에 사용되는 외피 및 부직포 등의 부자재에 대하여 UL 94 등의 난연성 시험방법에 따라 실험을 수행하고 난연성을 분석한 연구이다. 전기장판의 난연성을 분석하기 위하여 전기장판의 종류를 두께가 두꺼운 전기매트, 외피가 PVC 등으로 구성된 비닐전기장판, 외피가 천으로 구성된 전기요로 구분하여 전기장판에 사용되는 외피 및 부직포 등에 대하여 난연실험을 수행하였다. 그 결과 전기장판에 사용되는 외피 및 부직포 등의 부자재는 난연성능이 없는 것으로 나타났다.

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Thermal Performance of a Heating Board with a Microencapsulated Myristic Acid (Myristic acid를 사용한 축열장판의 열성능 연구)

  • Kwak, H.Y.;Kang, Y.H.;Jeon, M.S.;Lee, T.K.;Lee, D.G.;Han, G.Y.
    • Solar Energy
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    • v.18 no.3
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    • pp.177-183
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    • 1998
  • The thermal performance of a heating board with microencapsualted PCM was investigated and compared to conventional heating board. The employed PCM was the myristic acid $$ and was encapsulated by the multiple layers of PMMA and paraffin wax. The size of encapsulated PCM was $1{\sim}1.5mm$. Accoring to ANSI/ASHRAE test procedure, the close-loop test configuration was installed. Air was used as the heat transfer fluid and a calibrated orifice was employed for the measurement of air flow rates. The thermal performance test of two different heating boards(with 10 wt% PCM and without PCM) was conducted for different air flow rates and the heat transfer characteristics during cooling was compared. The test results showed that the surface temperature of heating board with 10 wt% PCM maintained higher during the cooling process than that of the heating board without PCM and experimentally determined heat transfer coefficient in heating board with PCM showed higher value compared to heating board without PCM.

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생활속의 인쇄-점착 타일 인쇄

  • Yun, Jae-Ho
    • 프린팅코리아
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    • s.19
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    • pp.108-109
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    • 2004
  • 우리는 흔히 아이들의 방을 꾸며 줄 때, 장판이나 벽지를 아이들이 좋아하는 캐릭터가 들어간 제품을 선택하고 시공을 전문인들에게 맡기는 경우가 대부분이다. 그러나 '점착타일'은 누구나 손쉽게 원하는 디자인을 선택하고 원하는 형태대로 장판대신 깔 수가 있다. 이 점착타일은 장판과는 달리 점착제가 미리 발라져 있어서 이형지만 떼어내고 원하는 형태로 붙일 수 있기 때문에 전문 시공인이 아니더라도 누구나 쉽게 할 수 있다는 장점이 있다.

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An Experimental Study on the Fire Hazard of Electric Heating Pad (전기장판의 화재위험성 실험연구)

  • Lee, Bok-Young;Park, Chan-Ho;Park, Sang-Tae;Hong, Sung-Ho;Yu, Hyun-Jong
    • Fire Science and Engineering
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    • v.20 no.3 s.63
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    • pp.113-117
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    • 2006
  • This study presents analysis of fire hazard of electrical heating pad. In order to analyze fire hazard fire experimental and flammability experiment is conducted. The fire experiment is conducted to simulate normal condition and abnormal condition such as breakdown of thermostat. Vertical burning test(UL 94) is conducted for the fire retardant experiment. Kinds of electric heating pad used for experiment are electric mat, fabric pad, vinyl pad. The results show that fire hazard is high in case of breakdown of thermostat with the rating voltage supply. And Material of electric heating pad has not fire retardant performance.

A Toxicity of Interior Upholstery in Apartment Housing (아파트 마감재의 연기 유독성)

  • Ham, Sang-Keun;Kim, Hong;Han, Sang-Bum;Kim, Woon-Hyung
    • Fire Science and Engineering
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    • v.15 no.3
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    • pp.36-43
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    • 2001
  • Several types of widely used interior upholsteries including wallpaper, veneer board and floor cover, were selected to be evaluated by using the method of NES 713 text. Test results indicates that a fire with retardant wallpaper release a large amount of toxic gases when constantly exposed to a fire source. When evaluated in terms of the masses of released gases, the release of Carbon monoxide appears the highest in case of wallpaper fire, while the ratio of CO/Mass loss appears the highest in case of floor cover fire. Therefore, it can be concluded that, a large amount of toxic gas will release from a floor cover fire with even a small quantity of fuel.

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A Study on the Analysis of the Combustion Behavior and Carbonization Pattern of Vinyl Flooring on Which a Real-Scale Combustion Test Was Performed (실물 연소 실험이 진행된 비닐장판의 연소거동 및 탄화 패턴 해석에 관한 연구)

  • Joe, Hi-Su;Choi, Chung-Seog
    • Fire Science and Engineering
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    • v.33 no.6
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    • pp.120-125
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    • 2019
  • A real-scale combustion test was conducted on a vinyl flooring in a divided space, with 50 mL of an inflammable liquid sprayed on it. The combustion behavior of the vinyl flooring was studied in real time, and the carbonization patterns of the surface and cross-sections of the carbonized vinyl floor were analyzed. When the flame ignited by gasoline reached its peak, a continuously flaming region, intermittent flaming region, plume region, etc., were formed. The combustion of 50 mL gasoline on vinyl flooring took 26 s, and a halo pattern was observed. This test involved spraying kerosene evenly on the vinyl flooring and attempting to ignite the flooring using a gas torch, which failed. After the combustion of the vinyl flooring was complete, its carbonized range was measured to be 600 mm in length and 380 mm in width, and the carbonized area was 1000 ㎟. Heat transformed the coated layer of surface of the carbonized vinyl flooring into a carbonized layer, which became harder. The analysis of cross-section of the boundary surface of the carbonized vinyl flooring using a stereoscopic microscope showed that the vinyl flooring was bubbling, and that the white boundary layer at the bottom of the coated layer had disappeared.

Fire Cause Analysis of Local Heating on Carbon Type Hot Wire Electric Pad (카본열선을 사용하는 전기장판의 국부가열에 의한 화재원인 분석)

  • Song, Jae-Yong;Kim, Jin-Pyo;Nam, Jung-Woo;Sa, Seung-Hun
    • Fire Science and Engineering
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    • v.24 no.4
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    • pp.104-108
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    • 2010
  • This paper describes electrical fire on electric pad using carbon type hot wires. A carbon type hot wires electric pad is virtually impossible to connect hot wire as a method of electrical welding or soldering. In order to connect between hot wires, that has to splice carbon type material connector. If junction of hot wires was occurrence of poor connection on electric pad, it increase contact resistance on this junction point. With increasing contact resistance, junction of hot wires on electric pad generates local heating and finally leads to electrical fire. In this paper, we analyzed shape of damage in hot wires caused by electrical local heating and investigated fire cause on electric pad using by carbon type hot wires.

월동준비, 난방용품부터 시작

  • Korea Boiler Engineering Association
    • 보일러설비
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    • no.11 s.142
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    • pp.118-121
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    • 2005
  • 아침 · 저녁으로 기온이 뚝 떨어지면서 '월동준비'에 나서는 소비자들이 급증하면서 각 유통업체의 겨울 난방용품 판촉전이 후끈 달아오르고 있다. 본격적으로 난방용품판매가 시작된 할인점의 경우 지난달보다 판매량이 15~30% 늘었으며, 특히 전기장판과 전기요의 매출은 150%, 온풍기, 원적외선 전기 히터 등의 매출은 200% 이상 신장하는 등 적은 비용으로 간편하게 실내 온도를 높일 수 있는 가전제품이 특수를 누리고 있다. 요즘처럼 일교차가 클 때는 집 안 전체를 난방은 비효율적으로, 전기장판, 온풍기, 매트, 히터 등 적은 비용으로 난방효과를 볼 수 있는 부분 난방용품이 인기를 끌고 있다.

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