Measurement of laminar burning velocities and Markstein lengths of diluted hydrogen-enriched natural gas

Haiyan Miao, Qi Jiao, Zuohua Huang, Deming Jiang

Research output: Contribution to journalArticlepeer-review

49 Citations (Scopus)

Abstract

The laminar flame characteristics of natural gas-hydrogen-air-diluent gas (nitrogen/CO2) mixtures were studied in a constant volume combustion bomb at various diluent ratios, hydrogen fractions and equivalence ratios. Both unstretched laminar burning velocity and Markstein length were obtained. The results showed that hydrogen fraction, diluent ratio and equivalence ratio have combined influence on laminar burning velocity and flame instability. The unstretched laminar burning velocity is reduced at a rate that is increased with the increase of the diluent ratio. The reduction effect of CO2 diluent gas is stronger than that of nitrogen diluent gas. Hydrogen-enriched natural gas with high hydrogen fraction can tolerate more diluent gas than that with low hydrogen fraction. Markstein length can either increase or decrease with the increase of the diluent ratio, depending on the hydrogen fraction of the fuel.

Original languageEnglish
Pages (from-to)507-518
Number of pages12
JournalInternational Journal of Hydrogen Energy
Volume34
Issue number1
Early online date25 Nov 2008
DOIs
Publication statusPublished - 1 Jan 2009
Externally publishedYes

Fingerprint

Dive into the research topics of 'Measurement of laminar burning velocities and Markstein lengths of diluted hydrogen-enriched natural gas'. Together they form a unique fingerprint.

Cite this