Effect of initial temperature on the explosion pressure of various liquid fuels and their blends

Marcin Grabarczyk , Andrzej Teodorczyk , V. Di Sarli , A. Di Benedetto

Abstract

In this work, the effect of initial temperature on the explosion pressure, Pex, of various liquid fuels (isooctane, toluene and methanol) and their blends (isooctane-toluene and methanol-toluene, with three different fuel-fuel ratios) was investigated by performing experiments in a 20-l sphere at different concentrations of vaporized fuel in air. The initial temperature was varied from 333 K to 413 K. Results show that, as the fuel-air equivalence ratio, Φ, is increased, a transition occurs from a “thermodynamics-driven” explosion regime to a “radiant heat losses-driven” explosion regime. The maximum pressure, Pmax, is found in the former regime (Φ < 3), which is characterized by a trend of decreasing Pex with increasing initial temperature. This trend has been explained by thermodynamics. In the latter regime (Φ > 3), Pex increases with increasing initial temperature. This trend has been addressed to the decrease in emissivity (and, thus, radiant heat losses) with the increase in temperature
Author Marcin Grabarczyk (FPAE / IHE)
Marcin Grabarczyk,,
- The Institute of Heat Engineering
, Andrzej Teodorczyk (FPAE / IHE)
Andrzej Teodorczyk,,
- The Institute of Heat Engineering
, V. Di Sarli - [Consiglio Nazionale delle Ricerche]
V. Di Sarli,,
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, A. Di Benedetto - [Universita degli Studi di Napoli Federico II]
A. Di Benedetto,,
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Journal seriesJournal of Loss Prevention in the Process Industries, ISSN 0950-4230
Issue year2016
Vol44
Nobrak
Pages775-779
Publication size in sheets0.5
Keywords in Polishpaliwa ciekłe, temperatura początkowa, kula 20 l, granice wybuchowości, termodynamika, radiacyjne straty ciepła
Keywords in EnglishLiquid fuels; Initial temperature; 20-l Sphere; Explosion regimes; Thermodynamics; Radiant heat losses
ASJC Classification2209 Industrial and Manufacturing Engineering; 1803 Management Science and Operations Research; 2102 Energy Engineering and Power Technology; 2213 Safety, Risk, Reliability and Quality; 1500 General Chemical Engineering; 1106 Food Science; 2207 Control and Systems Engineering
Abstract in Polishbrak
DOIDOI:10.1016/j.jlp.2016.08.013
URL http://dx.doi.org/10.1016/j.jlp.2016.08.013
Languageen angielski
Score (nominal)25
Score sourcejournalList
ScoreMinisterial score = 25.0, 28-02-2020, ArticleFromJournal
Ministerial score (2013-2016) = 25.0, 28-02-2020, ArticleFromJournal
Publication indicators WoS Citations = 8; Scopus Citations = 19; GS Citations = 19.0; Scopus SNIP (Source Normalised Impact per Paper): 2016 = 1.82; WoS Impact Factor: 2016 = 1.818 (2) - 2016=1.932 (5)
Citation count*31 (2020-08-19)
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
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