Flammability limits of hydrogen-enriched natural gas

Haiyan Miao, Lin Lu, Zuohua Huang

Research output: Contribution to journalArticle

Abstract

This paper reports both the lower and upper flammability limits of hydrogen-enriched natural gas with hydrogen fractions of 20%, 40%, 60% and 80% respectively as well as these of natural gas and hydrogen, measured by using a constant volume combustion chamber together with a high-speed schlieren photographic system. Based on investigating pressure rise history inside the combustion chamber as well as flame photos, the effect of hydrogen enrichment on the flammability characteristics is discussed. Our experimental results show that the flammability limits of methane-hydrogen mixtures can be used for hydrogen-enriched natural gas as long as their hydrogen fractions are the same. In this paper, the flammability data of methane-hydrogen mixtures available in the literature are reviewed. Correlations for both the lower and upper flammability limits of methane-hydrogen mixtures are summarized.

Original languageEnglish
Pages (from-to)6937-6947
Number of pages11
JournalInternational Journal of Hydrogen Energy
Volume36
Issue number11
DOIs
Publication statusPublished - Jun 2011
Externally publishedYes

Fingerprint Dive into the research topics of 'Flammability limits of hydrogen-enriched natural gas'. Together they form a unique fingerprint.

  • Cite this