• Title/Summary/Keyword: Autoignition temperatures (AITs)

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Measurement and Prediction of Fire and Explosion Properties of 3-Hexanone (3-헥사논의 화재 및 폭발 특성치의 측정 및 예측)

  • Ha, Dong-Myeong
    • Journal of the Korean Institute of Gas
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    • v.17 no.6
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    • pp.33-38
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    • 2013
  • For the safe handling of 3-hexanone(ethyl propyl ketone), this study was investigated the explosion limits of 3-hexanone in the reference data. The flash points and AITs(auto-ignition temperatures) by ignition delay time were experimented. The lower flash points of 3-hexanone by using closed-cup tester were experimented at $18^{\circ}C$. The lower flash points of 3-hexanone by using open cup tester were experimented in $27^{\circ}C{\sim}32^{\circ}C$. This study measured relationship between the AITs and the ignition delay times by using ASTM E659 tester for 3-hexanone. The experimental AIT of 3-hexanone was at $425^{\circ}C$. The lower explosion limit( LEL) by the measured lower flash point of 3-hexanone was calculated as 1.21 Vol%.

The Evaluation of Hazard by Measurement of Combustible Characteristics of n-Tetradecane (노말테트라데칸의 연소특성치 측정에 의한 위험성 평가)

  • Ha, Dong-Myeong
    • Journal of the Korean Society of Safety
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    • v.27 no.5
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    • pp.70-76
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    • 2012
  • For the safe handling of n-tetradecane, the lower flash points and the upper flash point, fire point, AITs (auto-ignition temperatures) by ignition delay time were experimented. Also lower and upper explosion limits by using measured the lower and upper flash points for n-tetradecane were calculated. The lower flash points of n-tetradecane by using closed-cup tester were measured $104^{\circ}C$ and $112^{\circ}C$. The lower flash points and fire point of n-tetradecane by using open cup tester were measured $113^{\circ}C$ and $115^{\circ}C$, respectively. This study measured relationship between the AITs and the ignition delay times by using ASTM E659 apparatus for n-tetradecane. The experimental AIT of n-tridecane was $207^{\circ}C$. The calculated lower and upper explosion limit by using measured lower $104^{\circ}C$ and upper flash point $140^{\circ}C$ for n-tetradecane were 0.63 Vol.% and 3.18 Vol%.

The Measurement of Combustible Properties of Cyclopentanol (사이클로펜탄올의 연소특성치의 측정)

  • Ha, Dong-Myeong
    • Journal of the Korean Institute of Gas
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    • v.18 no.2
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    • pp.35-40
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    • 2014
  • For the safe handling of cyclopentanol, this study was investigated the explosion limits of cyclopentanol in the reference data. The flash points and AITs(auto-ignition temperatures) by ignition delay time were experimented. The lower flash point of cyclopentanol by using closed-cup cyclopentanol was experimented at $49^{\circ}C$. The lower flash points of cyclopentanol by using open cup tester was experimented at $59^{\circ}C$. This study measured relationship between the AITs and the ignition delay times by using ASTM E659 tester for cyclopentanol. The experimental AIT of cyclopentanol was at $363 ^{\circ}C$.

The Measurement of Fire and Explosion Properties of n-Pentadecane (노말펜타데칸의 화재 및 폭발 특성치의 측정)

  • Ha, Dong-Myeong
    • Journal of the Korean Society of Safety
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    • v.28 no.4
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    • pp.53-57
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    • 2013
  • For the safe handling of n-pentadecane, the lower flash points and the upper flash point, fire point, AITs(auto-ignition temperatures) by ignition delay time were experimented. Also lower and upper explosion limits by using measured the lower and upper flash points for n-pentadecane were calculated. The lower flash points of n-pentadecane by using closed-cup tester were measured $118^{\circ}C$ and $122^{\circ}C$. The lower flash points and fire point of n-pentadecane by using open cup tester were measured $126^{\circ}C$ and $127^{\circ}C$, respectively. This study measured relationship between the AITs and the ignition delay times by using ASTM E659 apparatus for n-pentadecane. The experimental AIT of n-pentadecane was $195^{\circ}C$. The calculated lower and upper explosion limit by using measured lower $118^{\circ}C$ and upper flash point $174^{\circ}C$ for n-pentadecane were 0.54 Vol.% and 6.40 Vol.%.

The Measurement and Investigation of Fire and Explosion Characteristics of Cyclohexanone (사이클로헥사논의 화재 및 폭발 특성치의 측정 및 고찰)

  • Ha, Dong-Myeong
    • Fire Science and Engineering
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    • v.25 no.4
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    • pp.28-34
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    • 2011
  • For the safe handling of cyclohexanone, the explosion limits at $25^{\circ}C$ were investigated. The lower flash points and AITs (auto-ignition temperatures) by ignition time delay for cyclohexanone were experimented. By using the literatures data, the lower and upper explosion limits of cyclohexanone recommended 1.1 Vol.% ($100^{\circ}C$) and 9.4 Vol.%, respectively. The lower flash points of cyclohexanone were experimented $42{\sim}43^{\circ}C$ by using closed-cup tester and $49{\sim}51^{\circ}C$ by using open cup tester. This study measured relationship between the AITs and the ignition delay times by using ASTM E659-78 apparatus for cyclohexanone and the experimental AIT of cyclohexanone was $415^{\circ}C$.

Appropriateness of MSDS by Means of the Measurement of Combustible Properties of Anisole (아니솔의 연소특성치의 측정에 의한 MSDS의 적정성)

  • Ha, Dong-Myeong
    • Fire Science and Engineering
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    • v.29 no.2
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    • pp.20-24
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    • 2015
  • For the safe handling of anisole, this study was investigated the explosion limits of anisole in the reference data. The flash points and auto-ignition temperatures (AITs) by ignition delay time were experimented. The lower flash points of Anisole by using closed-cup tester were experimented in $39^{\circ}C$ and $42^{\circ}C$. The lower flash points of Anisole by using open cup tester were experimented in $50^{\circ}C$ and $54^{\circ}C$. This study measured relationship between the AITs and the ignition delay times by using ASTM E659 tester for Anisole. The AIT of Anisole was experimented as $390^{\circ}C$. The lower explosion limit (LEL) by the measured the lower flash point for Anisole were calculated as 1.07 Vol%.

The Measurement of Combustible Properties of Cyclohexanol (사이클로헥산올의 연소특성치의 측정)

  • Ha, Dong-Myeong
    • Fire Science and Engineering
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    • v.28 no.2
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    • pp.64-68
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    • 2014
  • For the safe handling of cyclohexanol, this study was investigated the explosion limits of cyclohexanol in the reference data. The flash points and auto-ignition temperatures (AITs) by ignition delay time were experimented. The lower flash points of cyclohexanol by using closed-cup tester were experimented in$60^{\circ}C{\sim}64^{\circ}C$. The lower flash points of cyclohexanol by using open cup tester were experimented in $66^{\circ}C{\sim}68^{\circ}C$. This study measured relationship between the AITs and the ignition delay times by using ASTM E659 tester for cyclohexanol. The AIT of cyclohexanol was experimented as $297^{\circ}C$. The lower explosion limit (LEL) and the upper explosion limit UEL) by the measured the lower flash point and the upper flash point of cyclohexanol were calculated as 0.95 Vol% and 10.7 Vol%, respectively.

The Measurement of Fire and Explosion Properties of n-Hexadecane (노말헥사데칸의 화재 및 폭발 특성치의 측정)

  • Ha, Dong-Myeong
    • Journal of the Korean Society of Safety
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    • v.29 no.3
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    • pp.39-45
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    • 2014
  • For the safe handling of n-hexadecane, the lower flash points and the upper flash point, fire point, AITs(auto-ignition temperatures) by ignition delay time were experimented. Also lower and upper explosion limits by using measured the lower and upper flash points for n-hexadecane were calculated. The lower flash points of n-hexadecane by using the Setaflash and the Pensky-Martens closed testers were measured $128^{\circ}C$ and $126^{\circ}C$, respectively. The lower flash points of the Tag and the Cleveland open cup testers were measured $136^{\circ}C$ and $132^{\circ}C$, respectively. The fire points of the Tag and the Cleveland open cup testers were measured $144^{\circ}C$. respectively. This study measured relationship between the AITs and the ignition delay times by using ASTM E659 apparatus for n-hexadecane. The experimental AIT of n-hexadecane was $200^{\circ}C$. The calculated lower and upper explosion limit by using measured lower $128^{\circ}C$ and upper flash point $180^{\circ}C$ for n-hexadecane were 0.42 Vol.% and 4.70 Vol.%.

Measurement and Prediction of Combustion Properties of Styrene (스티렌의 연소특성치 측정 및 예측)

  • Ha, Dong-Myeong;Na, Byeong-Gyun
    • Journal of the Korean Institute of Gas
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    • v.17 no.4
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    • pp.70-76
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    • 2013
  • For the safe handling of styrene, this study was investigated the explosion limits of styrene in the reference data. The flash points and AITs(auto-ignition temperatures) by ignition delay time were experimented. As a results, the lower and upper explosion limits of styrene recommended 0.9 Vol.% and 8.0 Vol.%, respectively. The lower flash points of styrene by using closed-cup tester were experimented $29^{\circ}C{\sim}31^{\circ}C$. The lower flash points of styrene by using open cup tester were experimented $32^{\circ}C{\sim}36^{\circ}C$. This study measured relationship between the AITs and the ignition delay times by using ASTM E659 tester for styrene. The experimental AIT of styrene was $460^{\circ}C$.

Prediction of Minimum Spontaneous Ignition Temperature(MSIT) of the Mixture of n-Pentanol and Ethylbenzene (n-Pentanol과 Ethylbenzene 혼합물의 최소자연발화온도의 예측)

  • Ha, Dong-Myeong
    • Journal of the Korean Institute of Gas
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    • v.16 no.2
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    • pp.45-51
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    • 2012
  • The MSITs(Minimum Spontaneous Ignition Temperatures) or AITs(Autoignition Temperatures) describe the minimum temperature to which a substance must be heated, without the application of a flame or spark, which will cause that substance to ignite. This study measured the MSITs(Minimum Spontaneous Ignition Temperatures) of n-pentanol+ethylbenzene system by using ASTM E659 apparatus. The MSITs of pure n-pentanol and ethylbenzene were $285^{\circ}C$ and $475^{\circ}C$, respectively. The experimental MSITs of n-pentanol+ethylbenzene system were a in good agreement with the MSIT calculated by the proposed equations with a few A.A.D.(average absolute deviation).