Constants of explosive limits

TL;DR

This paper introduces a method to estimate explosive limits of fuels using the concepts of density factor and adiabatic flame temperature, simplifying calculations for safety and engineering applications.

Contribution

It proposes that constant adiabatic flame temperature and density factor can accurately approximate lower and upper explosive limits, respectively, across many fuels.

Findings

Constant adiabatic flame temperature approximates lower explosive limit.

Constant density factor approximates upper explosive limit.

Method applies to a wide range of fuels at room temperature and pressure.

Abstract

This work defines density factor as the ratio of before ignition density to after ignition density of the ignition mixture. This work provides an estimation method for explosive limits of various fuels under room temperature and pressure by showing that for a large universe of fuels, constant adiabatic flame temperature and density factor are appropriate approximations at the lower explosive limit while only a constant density factor might be an appropriate approximation at the upper explosive limit. Thus the assumption of a constant adiabatic flame temperature can be used in calculating lower explosive limit while the assumption of a constant density factor can be used in approximating upper explosive limit.