Title

Effect Of Higher-Order Hydrocarbons On Methane-Based Fuel Chemistry At Gas Turbine Pressures

Abstract

A chemical kinetics mechanism designed for the oxidation of methane-hydrocarbon blends at elevated pressures was used to study the effect of higher-order hydrocarbons on ignition delay time and flame speed at gas turbine conditions. The mechanism was developed from recent data and modeling conducted by the authors, including pressures above 30 atm, temperatures as low as 700 K, and alkane additives from C2H6 through C 5H12. Calculations focused on three target natural gas mixtures containing CH4 mole fractions from 62.5 to 98%. The results show the effects that pressure, temperature, and hydrocarbon content have on the combustion chemistry of the fuel-air mixtures. For example, autoignition times exhibit nonlinear trends with increasing pressure and decreasing temperature. Experiments in the authors' laboratories are ongoing, and an overview of the related facilities is provided. Copyright © ASME 2007.

Publication Date

9-24-2007

Publication Title

Proceedings of the ASME Turbo Expo

Volume

2

Number of Pages

781-788

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1115/GT2007-28039

Socpus ID

34548737152 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/34548737152

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