# Autoignition of Butanol Isomers at Low to Intermediate Temperature and Elevated Pressure

## TL;DR

This study investigates the autoignition delay of all butanol isomers at various temperatures and pressures, comparing experimental results with kinetic models to evaluate their accuracy in predicting ignition behavior.

## Contribution

It provides experimental ignition delay data for all butanol isomers at low to intermediate temperatures and compares these with existing kinetic models.

## Key findings

- Ignition delay decreases with increasing temperature.
- Reasonable agreement between experiments and models for tert-, iso-, and n-butanol.
- Single-stage ignition characteristics observed across conditions.

## Abstract

Autoignition delay experiments for the isomers of butanol, including n-, sec-, tert-, and iso-butanol, have been performed using a heated rapid compression machine. For a compressed pressure of 15 bar, the compressed temperatures have been varied in the range of 725-855 K for all the stoichiometric fuel/oxidizer mixtures. Over the conditions investigated in this study, the ignition delay decreases monotonically as temperature increases and exhibits single-stage characteristics. Experimental ignition delays are also compared to simulations computed using three kinetic mechanisms available in the literature. Reasonable agreement is found for three isomers (tert-, iso-, and n-butanol).

---
Source: https://tomesphere.com/paper/1706.01837