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

Haiyan Miao; Qi Jiao; Zuohua Huang; Deming Jiang

doi:10.1016/j.ijhydene.2008.10.050

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 journal › Article › peer-review

55 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 language	English
Pages (from-to)	507-518
Number of pages	12
Journal	International Journal of Hydrogen Energy
Volume	34
Issue number	1
Early online date	25 Nov 2008
DOIs	https://doi.org/10.1016/j.ijhydene.2008.10.050
Publication status	Published - 1 Jan 2009
Externally published	Yes

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title = "Measurement of laminar burning velocities and Markstein lengths of diluted hydrogen-enriched natural gas",

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.",

keywords = "Constant volume combustion bomb, Diluent gas, Hydrogen-enriched natural gas, Laminar burning velocity, Markstein length",

author = "Haiyan Miao and Qi Jiao and Zuohua Huang and Deming Jiang",

note = "Funding Information: This work is supported by National Natural Science Foundation of China (No. 50606029) and National Basic Research Program (No.2007CB210006). Copyright: Copyright 2009 Elsevier B.V., All rights reserved.",

year = "2009",

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doi = "10.1016/j.ijhydene.2008.10.050",

language = "English",

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journal = "International Journal of Hydrogen Energy",

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T1 - Measurement of laminar burning velocities and Markstein lengths of diluted hydrogen-enriched natural gas

AU - Miao, Haiyan

AU - Jiao, Qi

AU - Huang, Zuohua

AU - Jiang, Deming

N1 - Funding Information: This work is supported by National Natural Science Foundation of China (No. 50606029) and National Basic Research Program (No.2007CB210006). Copyright: Copyright 2009 Elsevier B.V., All rights reserved.

PY - 2009/1/1

Y1 - 2009/1/1

N2 - 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.

AB - 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.

KW - Constant volume combustion bomb

KW - Diluent gas

KW - Hydrogen-enriched natural gas

KW - Laminar burning velocity

KW - Markstein length

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U2 - 10.1016/j.ijhydene.2008.10.050

DO - 10.1016/j.ijhydene.2008.10.050

M3 - Article

AN - SCOPUS:57949096491

VL - 34

SP - 507

EP - 518

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

SN - 0360-3199

IS - 1

ER -

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

Abstract

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