Study on Improving the Air Tightness of Building Doors by Using Magnetic Force Mechanism

碩士 === 東南科技大學 === 營建與空間設計系營建科技與防災碩士班 === 105 === To explore possible smoke blocking function for building doors when fire occurring, this study aims to develop a device to improve air-tightness of building doors utilizing a magnetic force. An air-tight wooden six-sides box was used as a space unit m...

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Main Authors: Lee, Chin-Jung, 李金榮
Other Authors: Cheng, Chao-Lin
Format: Others
Language:zh-TW
Published: 2017
Online Access:http://ndltd.ncl.edu.tw/handle/75728h
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spelling ndltd-TW-105TNIO06530242019-05-15T23:24:50Z http://ndltd.ncl.edu.tw/handle/75728h Study on Improving the Air Tightness of Building Doors by Using Magnetic Force Mechanism 利用磁力作用機構以增進門扇氣密性之研究 Lee, Chin-Jung 李金榮 碩士 東南科技大學 營建與空間設計系營建科技與防災碩士班 105 To explore possible smoke blocking function for building doors when fire occurring, this study aims to develop a device to improve air-tightness of building doors utilizing a magnetic force. An air-tight wooden six-sides box was used as a space unit model with a build-in wooden door, attaching to the lower edge of the wooden door a magnetic device employing the magnet repulsion concept. The wooden door separates the smoke and non-smoke sides, smoke-detectors were installed at the tops of both sides. When smoke induced, the power on of the magnetic device determined the enhancement of air-tightness of the wooden door. Together with ventilation on the non-smoke side to create a negative pressure, five experimental conditions were examined to record waiting times for turning on the smoke detectors. After statistics analyses for the waiting times distributions, the magnetic device indeed could promote air-tightness for building doors. However, under negative pressure in the non-smoking side, controlling the air tightness of the door to prevent smoke spreading had limited effect. Cheng, Chao-Lin 鄭兆麟 2017 學位論文 ; thesis 61 zh-TW
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language zh-TW
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description 碩士 === 東南科技大學 === 營建與空間設計系營建科技與防災碩士班 === 105 === To explore possible smoke blocking function for building doors when fire occurring, this study aims to develop a device to improve air-tightness of building doors utilizing a magnetic force. An air-tight wooden six-sides box was used as a space unit model with a build-in wooden door, attaching to the lower edge of the wooden door a magnetic device employing the magnet repulsion concept. The wooden door separates the smoke and non-smoke sides, smoke-detectors were installed at the tops of both sides. When smoke induced, the power on of the magnetic device determined the enhancement of air-tightness of the wooden door. Together with ventilation on the non-smoke side to create a negative pressure, five experimental conditions were examined to record waiting times for turning on the smoke detectors. After statistics analyses for the waiting times distributions, the magnetic device indeed could promote air-tightness for building doors. However, under negative pressure in the non-smoking side, controlling the air tightness of the door to prevent smoke spreading had limited effect.
author2 Cheng, Chao-Lin
author_facet Cheng, Chao-Lin
Lee, Chin-Jung
李金榮
author Lee, Chin-Jung
李金榮
spellingShingle Lee, Chin-Jung
李金榮
Study on Improving the Air Tightness of Building Doors by Using Magnetic Force Mechanism
author_sort Lee, Chin-Jung
title Study on Improving the Air Tightness of Building Doors by Using Magnetic Force Mechanism
title_short Study on Improving the Air Tightness of Building Doors by Using Magnetic Force Mechanism
title_full Study on Improving the Air Tightness of Building Doors by Using Magnetic Force Mechanism
title_fullStr Study on Improving the Air Tightness of Building Doors by Using Magnetic Force Mechanism
title_full_unstemmed Study on Improving the Air Tightness of Building Doors by Using Magnetic Force Mechanism
title_sort study on improving the air tightness of building doors by using magnetic force mechanism
publishDate 2017
url http://ndltd.ncl.edu.tw/handle/75728h
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