Fire and explosion hazard evaluation for the acetone aqueous solutions

ASIA unversity > 醫學暨健康學院 > 食品營養與保健生技學系 > 期刊論文 > Item 310904400/17271

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Title:	Fire and explosion hazard evaluation for the acetone aqueous solutions
Authors:	Yi-Ming Chang;Mei-Li You;Chien-Hung Lin;Siou-Yuan Wu;Jo-Ming Tseng;Chun-Ping Lin;Yaw-Long Wang;Chi-Min Shu
Contributors:	保健營養生技學系
Keywords:	Acetone aqueous solutions;Fire and explosion;Grey system theory;Influence factors;20-L-apparatus
Date:	2011-06
Issue Date:	2012-11-26 02:30:50 (UTC+0)
Abstract:	The prevention of fire and explosion is recognized as an imperative necessity that is a first priority in all operating management details of the chemical process industries. Based on significant research and original emphasis on loss control and disaster prevention, this study investigated the flammability characteristics, comprising the lower/upper explosion limit (LEL and UEL), maximum explosion overpressure (P max), maximum rate of explosion pressure rise [(dP dt −1)max], gas or vapor deflagration index (K g), and explosion class (St class) of four acetone aqueous solutions [water vapor (steam)/acetone: 75/25, 50/50, 25/75, and 0/100 vol.%], and discussed the effect of inert steam (H2O(g)) on them. Interactive influences of various loading fuel concentrations and initial testing conditions of 150, 200 °C, and 101, 202 kPa on flammability characteristics were revealed via a 20-L-apparatus. Weighting analysis of the above influence factors was explored by employing the GM(h,N) grey system theory for rating their fire and explosion hazard degrees both specifically and quantitatively. The results indicated that the most important influence factor was the initial pressure that the manager or engineer in such a steam/acetone mixing system should consider to be well-controlled first. The second influence factor in GM(1,N) and GM(0,N) model was the initial temperature and steam/acetone mixing concentration, but the third influence factor was individual contrariwise. This study established a complete flammability hazard evaluation approach that is combined with an experimentally and theoretically feasible way for fire/explosion prevention and protection. The outcomes would be useful for positive decisions for safety assessment for the relevant practical plants or processes
Relation:	JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 106(1):179-189.
Appears in Collections:	[食品營養與保健生技學系] 期刊論文

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