Title

N-Butane: Ignition Delay Measurements At High Pressure And Detailed Chemical Kinetic Simulations

Keywords

Chemical kinetics; High pressure; Ignition delay; Modeling; N-Butane; Rapid compression machine; Shock tube

Abstract

Ignition delay time measurements were recorded at equivalence ratios of 0.3, 0.5, 1, and 2 for n-butane at pressures of approximately 1, 10, 20, 30 and 45. atm at temperatures from 690 to 1430. K in both a rapid compression machine and in a shock tube. A detailed chemical kinetic model consisting of 1328 reactions involving 230 species was constructed and used to validate the delay times. Moreover, this mechanism has been used to simulate previously published ignition delay times at atmospheric and higher pressure. Arrhenius-type ignition delay correlations were developed for temperatures greater than 1025. K which relate ignition delay time to temperature and concentration of the mixture. Furthermore, a detailed sensitivity analysis and a reaction pathway analysis were performed to give further insight to the chemistry at various conditions. When compared to existing data from the literature, the model performs quite well, and in several instances the conditions of earlier experiments were duplicated in the laboratory with overall good agreement. To the authors' knowledge, the present paper presents the most comprehensive set of ignition delay time experiments and kinetic model validation for n-butane oxidation in air. © 2010 The Combustion Institute.

Publication Date

8-1-2010

Publication Title

Combustion and Flame

Volume

157

Issue

8

Number of Pages

1526-1539

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/j.combustflame.2010.01.016

Socpus ID

77953810032 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/77953810032

This document is currently not available here.

Share

COinS