期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 36, 期 11, 页码 6937-6947出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2011.02.126
关键词
Flammability limit; Hydrogen; Natural gas; Methane; Hydrogen enrichment
资金
- National Natural Science Foundation of China [50606029]
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 OIL 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 fraction; 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. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
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