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한국안전학회(구 한국산업안전학회)> 한국안전학회지(구 산업안전학회지)> 백열전구 복사열에 의한 미송판의 발화 임계거리 및 발화시간 예측

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백열전구 복사열에 의한 미송판의 발화 임계거리 및 발화시간 예측

Predicting of Ignition Time and Critical Distance for Ignition of Douglas fir by Radiant Heat of Incandescent Lamp

이흥수 ( Heung Su Lee ) , 김두현 ( Doo Hyun Kim )
  • : 한국안전학회(구 한국산업안전학회)
  • : 한국안전학회지(구 산업안전학회지) 31권2호
  • : 연속간행물
  • : 2016년 04월
  • : 18-25(8pages)

DOI


목차

1. 서 론
2. 적용이론
3. 실험
4. 고 찰
5. 결 론
References

키워드 보기


초록 보기


						
The incandescent lamp is an electric light fixture with a tungsten filament heated to a high temperature, by passing an electric current through it, until it glows with visible light. The hot filament is protected from oxidation with a glass bulb that is filled with inert gas. The incandescent lamp has fire risk when combustible materials are close to its glass bulb. Because its lamp has the property which converts 90∼95 percents of the electric power to heat energy. 2015 national fire statistics show that fires caused by lighting fixtures were 652 cases, and incandescent lamps(44 cases) and halogen lamps(53 cases) accounted for 15 percents in those of high heating light fixtures. Since incandescent lamp fires account for about 45 percents in the high heating light fixture, we could not overlook the fire risks by the incandescent lamp. Although many studies related with those have been conducted, incandescent lamp fires are continuously occurred. This study was carried out to study the fire risk of ignition of wood due to radiant heat of incandescent lamp. Radiant heat flux of the incandescent lamp was predicted by applying point source model, and critical distance for ignition of wood was calculated by applying integral model. The results from this study could applied to fire prevention activities related to light bulb, and it could be used in fire cause investigations related to radiant heat of incandescent lamp.

UCI(KEPA)

I410-ECN-0102-2017-530-000121566

간행물정보

  • : 공학분야  > 기타(공학)
  • : KCI등재
  • :
  • : 격월
  • : 1738-3803
  • : 2383-9953
  • : 학술지
  • : 연속간행물
  • : 1986-2019
  • : 2815


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발행기관 최신논문
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1국내 원자력발전소의 공기 압축기실에서 윤활유 화재의 위험성 분석을 위한 FDS의 활용

저자 : 한호식 ( Ho Sik Han ) , 황철홍 ( Cheol Hong Hwang ) , 백경록 ( Kyung Lok Baik ) , 이상규 ( Sangkyu Lee )

발행기관 : 한국안전학회(구 한국산업안전학회) 간행물 : 한국안전학회지(구 산업안전학회지) 31권 2호 발행 연도 : 2016 페이지 : pp. 1-9 (9 pages)

다운로드

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초록보기

The standard procedure of fire modeling was reviewed to minimize the user dependence, based on the NUREG-1934 and 1824 reports. The hazard analysis of lubricating oil fires in the air compressor room of domestic nuclear power plant (NPP) was also performed using a representative fire model, FDS (Fire Dynamics Simulator). The area (A  _{f}) and location of fire source were considered as major parameters for the realistic fire scenarios. As a result, the maximum probability to exceed the thermal damage criteria of IEEE-383 unqualified electrical cables was predicted as approximately 70% with A  _{f}=1 m2. It was also found that for qualified electrical cables, the maximum probabilities of exceeding the criteria were 2% and 90% with A  _{f}=2 and 4 m2, respectively. It was concluded that all electrical cables should be replaced with IEEE-383 qualified cables and the dike to restrict as A  _{f} ≤ m  ^{2} should be installed at the same time, in order to assure the thermal stability of electrical cables for lubricating oil fires in the air compressor room of domestic NPP.

2계통연계형 에너지저장시스템의 위험우선순위 분석

저자 : 김두현 ( Doo Hyun Kim ) , 김성철 ( Sung Chul Kim ) , 박전수 ( Jeon Su Park ) , 김은진 ( Eun Jin Kim ) , 김의식 ( Eui Sik Kim )

발행기관 : 한국안전학회(구 한국산업안전학회) 간행물 : 한국안전학회지(구 산업안전학회지) 31권 2호 발행 연도 : 2016 페이지 : pp. 10-17 (8 pages)

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초록보기

The purpose of this paper is to deduct components that are in the group of highest risk(top 10%). the group is conducted for classification into groups by values according to risk priority through risk priority number(RPN) of FMEA(Failure modes and effects analysis) sheet. Top 10% of failure mode among total potential failure modes(72 failure modes) of ESS included 5 BMS(battery included) failure modes, 1 invert failure mode, and 1 cable connectors failure mode in which BMS was highest. This is because ESS is connected to module, try, and lack in the battery part as an assembly of electronic information communication and is managed. BMS is mainly composed of the battery module and communication module. There is a junction box and numerous connectors that connect these two in which failure occurs most in the connector part and module itself. Finally, this paper proposes RPN by each step from the starting step of ESS design to installation and operation. Blackouts and electrical disasters can be prevented beforehand by managing and removing the deducted risk factors in prior.

3백열전구 복사열에 의한 미송판의 발화 임계거리 및 발화시간 예측

저자 : 이흥수 ( Heung Su Lee ) , 김두현 ( Doo Hyun Kim )

발행기관 : 한국안전학회(구 한국산업안전학회) 간행물 : 한국안전학회지(구 산업안전학회지) 31권 2호 발행 연도 : 2016 페이지 : pp. 18-25 (8 pages)

다운로드

(기관인증 필요)

초록보기

The incandescent lamp is an electric light fixture with a tungsten filament heated to a high temperature, by passing an electric current through it, until it glows with visible light. The hot filament is protected from oxidation with a glass bulb that is filled with inert gas. The incandescent lamp has fire risk when combustible materials are close to its glass bulb. Because its lamp has the property which converts 90∼95 percents of the electric power to heat energy. 2015 national fire statistics show that fires caused by lighting fixtures were 652 cases, and incandescent lamps(44 cases) and halogen lamps(53 cases) accounted for 15 percents in those of high heating light fixtures. Since incandescent lamp fires account for about 45 percents in the high heating light fixture, we could not overlook the fire risks by the incandescent lamp. Although many studies related with those have been conducted, incandescent lamp fires are continuously occurred. This study was carried out to study the fire risk of ignition of wood due to radiant heat of incandescent lamp. Radiant heat flux of the incandescent lamp was predicted by applying point source model, and critical distance for ignition of wood was calculated by applying integral model. The results from this study could applied to fire prevention activities related to light bulb, and it could be used in fire cause investigations related to radiant heat of incandescent lamp.

4BLEVE를 고려한 LPG 시설 Siting 분석

저자 : 김태범 ( Taebeom Kim ) , 이경림 ( Kyounglim Lee ) , 이주희 ( Juhee Lee ) , 정승호 ( Seungho Jung ) , 이건모 ( Kunmo Lee )

발행기관 : 한국안전학회(구 한국산업안전학회) 간행물 : 한국안전학회지(구 산업안전학회지) 31권 2호 발행 연도 : 2016 페이지 : pp. 26-32 (7 pages)

다운로드

(기관인증 필요)

초록보기

In previous studies on LPG siting in Korea, the scope have not included the probability of the secondary events of adjacent LPG tanks or structures from an explosion source. Therefore, it is essential to first identify the phenomenon which can be caused by BLEVE and then, properly assess their effects to each target including secondary event. In this study, we calculated the effects from a potential BLEVE of 15 ton LPG tank causing damages of storage tanks (LPG), structures and human using Phast ver. 6.7 and then suggested three risk zones (ZoneⅠ, Ⅱ, Ⅲ) assuming the consequences such as overpressure, heat radiation and missile effect by fragments. ZoneⅠand II are divided at the line of 50% occurrence of the secondary event. ZoneⅡand Ⅲ are divided by Individual Risk(IR). The zone approach in this study can be used for more effective and safer Land Use Planning (LUP) for the future.

5화약 폭발에 의한 탄화수소계 연료의 분산매질 형성에 관한 연구

저자 : 유재헌 ( Jae Hun Yoo )

발행기관 : 한국안전학회(구 한국산업안전학회) 간행물 : 한국안전학회지(구 산업안전학회지) 31권 2호 발행 연도 : 2016 페이지 : pp. 33-40 (8 pages)

다운로드

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초록보기

Liquid fuel can be easily exploded and release more energy of detonation than conventional explosives because it has different explosion mechanism. In order to analyze dispersion characteristics of liquid fuel for the safety purpose, two tests are conducted. First, pre-test, which is a computer simulation, is carried out by a software called ANSYS AUTODYN to eliminate the effect of a canister that usually causes irregular dispersion of the fuel. Second, field test is performed to find out the amount and density effect of bursting charge. High speed cameras are installed in front of the canister to visualize the mechanism. Velocity, area and radius of the dispersed cloud are measured by image processing software, these are shown that the amount of bursting charge affects cloud velocity and area but density is not a significant factor of cloud formation.

6델파이 기법을 활용한 토석류 피해조사 항목 개발

저자 : 변요셉 ( Yo Seph Byun ) , 김민기 ( Min Gi Kim ) , 박경한 ( Kyung Han Park ) , 오태근 ( Tae Keun Oh ) , 성주현 ( Joo Hyun Seong )

발행기관 : 한국안전학회(구 한국산업안전학회) 간행물 : 한국안전학회지(구 산업안전학회지) 31권 2호 발행 연도 : 2016 페이지 : pp. 41-48 (8 pages)

다운로드

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초록보기

Recently, the frequency and intensity of localized heavy rain and typhoon due to the abnormal climate has increased, and especially the damage by an avalanche of earth and rocks similar to the landslide of Umyeon Mountain has become a social issue. However, the standardized damage investigation method doesn't yet exist, so the systematic analysis of the data has not been carried out. In this regard, this study developed assessment items to conduct standardized damage investigation of debris flow. To achieve this, preliminary assessment items were derived from analysis of literature review and the Delphi technique of 12 experts who are engaged in research facility, academia and industry was conducted. As a result, 29 assessment items which can be classified into 6 groups were determined. Surveying the relevant hand-on workers, details assessment items in each group were determined by exploratory factor analysis and reliability analysis.

7흐름 경사면의 경사도에 따른 토석류 흐름의 특성 분석

저자 : 이준선 ( Jun Seon Lee ) , 송창근 ( Chang Geun Song ) , 이승오 ( Seung Oh Lee )

발행기관 : 한국안전학회(구 한국산업안전학회) 간행물 : 한국안전학회지(구 산업안전학회지) 31권 2호 발행 연도 : 2016 페이지 : pp. 49-56 (8 pages)

다운로드

(기관인증 필요)

초록보기

In Korea, there exist many mountains, and sudden storms occur during the summer season. When severe rainstorm events occur in steep slope topography, risk of debris flow is increased. Once debris flow occurs in urban area, it may cause casualties and physical damages due to rapid debris flow velocity along a steep slope. Accordingly, preventing method of sediment-related disaster for demage mitigation are essential. Recently, various studies on debris flow have been conducted. However, the prediction of the physical propagation of debris flow along the steep slope was not thoroughly investigated. Debris flow is characterized by various factors such as topography, properties of debris flow, amount of debris flow. In the study the numerical simulation was focused on the topographic factor. Fundamental analysis of the risk area was implemented with emphasis on the propagation length, thickness, and the development of maximum velocity. The proposed results and the methodology of estimating the structural vulnerability would be helpful in predicting the behavior and the risk assessment of debris flow in urban area. These results will be able to estimate the vulnerability of urban areas affected the most damage by debris flow.

8지하차도 건설에 따른 기존 지하철터널 안정성에 대한 연구

저자 : 정지승 ( Jee Seung Chung ) , 최재영 ( Jae Young Choi ) , 이진혁 ( Jin Hyuk Lee )

발행기관 : 한국안전학회(구 한국산업안전학회) 간행물 : 한국안전학회지(구 산업안전학회지) 31권 2호 발행 연도 : 2016 페이지 : pp. 57-63 (7 pages)

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초록보기

Recently, subways in the city are formed a vast underground network which is interfered with construction when large-scale infrastructure will be planned to nearby existing subway tunnels. Researches have been restricted to estimate stability of existing subway tunnel due to adjacent excavation causued by small construction such as buildings. In this paper, OO underpass is planned on the top of existing subway tunnel, which will be need large-scale excavation, is selected as a subject of study. And the purpose of this study is to analyze the effects on existing subway tunnel due to excavation by stages on construction of underpass. The 3D-numerical analysis was performed by using the MIDAS/GTS program. The stability on existing subway tunnel caused by sequential excavation is analysed using numerical results. Based on the analysis, the excavation orders and reinforcement methods was suggested for stability of exiting subway tunnel.

9고속철도 수직구 터널구조물에 적용된 파형강판공법의 구조적 안정성 검토

저자 : 정지승 ( Jee Seung Chung ) , 신화철 ( Hwa Cheol Shin ) , 김진구 ( Jin Gu Kim )

발행기관 : 한국안전학회(구 한국산업안전학회) 간행물 : 한국안전학회지(구 산업안전학회지) 31권 2호 발행 연도 : 2016 페이지 : pp. 64-69 (6 pages)

다운로드

(기관인증 필요)

초록보기

In this paper, structural analysis of High-Speed railway vertical tunnel structures was performed to verify the structural stability. The corrugated steel plate method was applied to the vertical tunnel structures for its simple construction method and low cost. The structural stability of Wall, Connection and Storage section was performed with LRFD and ASD design method at joint part, buckling, stress and plastic hinge. From the results, all of vertical tunnel structures shown the structural stability regardless of design method and structure types. So, the application of corrugated steel plate in vertical tunnel structures instead of cast-in-placed concrete was quite enough.

10Sluice Gate를 이용한 고립파 발생조건에 따른 형상 및 압력 특성에 관한 실험적 연구

저자 : 조재남 ( Jae Nam Cho ) , 김동현 ( Dong Hyun Kim ) , 이승오 ( Seung Oh Lee )

발행기관 : 한국안전학회(구 한국산업안전학회) 간행물 : 한국안전학회지(구 산업안전학회지) 31권 2호 발행 연도 : 2016 페이지 : pp. 70-75 (6 pages)

다운로드

(기관인증 필요)

초록보기

Recently, coastal erosion has been widely in progress and the erosion level becomes also serious in the world wide, espeically in East Sea in Korea. Since it would threaten the life, economics and security risk, it is necessary to much comprehend the reason why coastal erosion has occurred according to the geographical characteristics. Meanwhile, analysis about hydrodynamics of the solitary wave such as tunami in swash zone is needed for the best management practice of coastal erosion. Solitary wave is nonlinear wave and can be reproduced in the laboratoy scale by openning suddenly a sluice gate with water head difference, of which methodology was found in the literature, since it could be simply determined by a significant wave height. Thus, in this sutdy the generation of solitary wave was experimentalized using the sluice gate. Experimental conditions were classified by angles of a beach slope, a water level in a beach slope and a difference of water level between in a headtank and a channel bed. Two kinds of dimensionless analyses based from experimental results in this study were presented; the first analysis indicates nondimensionalization between the wave height and the water level in a beach slope in order to investigate characteristics of solitary wave approaching the beach. The second shows the other nondimensionalization between dynamic pressure and static pressure on a beach slope to investigate the relationship between wave breaking and wave pressure. Under the same conditions as laboratory experiments, the numerical results computed with a SWAN model embedded in FLOW 3D were compared in terms of wave height, and pressure on the beach slope, which shows good agreement with each other. Overall results from this study could provide fundamental hydraulic data for the reliabile verification of numerical simulation results about coastal erosion in swash zone caused by solitary waves.

12
주제별 간행물
간행물명 수록권호

인터넷정보학회지
19권 2호 ~ 20권 1호

KCI등재

한국산업융합학회 논문집
22권 4호 ~ 22권 4호

KCI등재

인터넷정보학회논문지
20권 4호 ~ 20권 4호

KCI등재

복합신소재구조학회논문집
10권 4호 ~ 10권 4호

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한국안전학회지(구 산업안전학회지)
34권 4호 ~ 34권 4호

KCI등재 SCI SCOUPUS

KSII Transactions on Internet and Information Systems (TIIS)
13권 8호 ~ 13권 8호

KCI등재 SCI SCOUPUS

KSII Transactions on Internet and Information Systems (TIIS)
13권 7호 ~ 13권 7호

복합신소재구조학회지
10권 2호 ~ 10권 2호

한국화상학회지
25권 1호 ~ 25권 1호

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공학기술논문지
12권 2호 ~ 12권 2호

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감성과학
22권 2호 ~ 22권 2호

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한국산업융합학회 논문집
22권 3호 ~ 22권 3호

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20권 3호 ~ 20권 3호

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한국안전학회지(구 산업안전학회지)
34권 3호 ~ 34권 3호

KCI등재 SCI SCOUPUS

KSII Transactions on Internet and Information Systems (TIIS)
13권 6호 ~ 13권 6호

KCI등재

복합신소재구조학회논문집
10권 3호 ~ 10권 3호

한국감성과학회 춘계학술대회
2019권 0호 ~ 2019권 0호

KCI등재 SCI SCOUPUS

KSII Transactions on Internet and Information Systems (TIIS)
13권 5호 ~ 13권 5호

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인터넷정보학회논문지
20권 2호 ~ 20권 2호

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한국안전학회지(구 산업안전학회지)
34권 2호 ~ 34권 2호
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