Correction to Experimental and Numerical Investigation of the Laminar Burning Velocity and Combustion Characteristics of Biogas at High Pressures

A comprehensive review of combustion characteristics of ammonia (NH3) as a carbon free fuel is presented. NH3 is an attractive alternative fuel candidate to reduce the consumption of fossil fuel and the emission of CO2, soot, and hydrocarbon pollutants, due to its comparable combustion properties, productivities from renewable sources, and storage and transportation by current commercial infrastructure. However, the combustion properties of NH3 are quite different from conventional hydrocarbon fuels, which highlight the specific difficulties during the application of NH3. Therefore, this paper presents comparative experimental and numerical studies of the application of NH3 as a fuel during combustion process, including the combustion properties of laminar burning velocity, flame structures, pollutant emissions for the application of NH3 as a carbon free fuel. This paper presents the burning velocity and pollutant emissions of NH3 alone and mixtures with other fuels to improve the combustion properties. The aim of this paper is to review and describe the suitability of NH3 as a fuel, including the combustion and emission characteristics of NH3 during its combustion process.

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Experimental and Numerical Investigation of Iso-Octane, Methanol and Ethanol Regarding Laminar Burning Velocity at Elevated Pressure and Temperature

10.4271/2009-01-1774 ◽

2009 ◽

Cited By ~ 21

Author(s):

J. Beeckmann ◽

O. Röhl ◽

N. Peters

Keyword(s):

Numerical Investigation ◽

Burning Velocity ◽

Elevated Pressure ◽

Laminar Burning Velocity

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Fundamental Combustion Characteristics of Lean and Stoichiometric Hydrogen Laminar Premixed Flames Diluted With Nitrogen or Carbon Dioxide

Journal of Engineering for Gas Turbines and Power ◽

10.1115/1.4032315 ◽

2016 ◽

Vol 138 (11) ◽

Cited By ~ 4

Author(s):

Hong-Meng Li ◽

Guo-Xiu Li ◽

Zuo-Yu Sun ◽

Zi-Hang Zhou ◽

Yuan Li ◽

...

Keyword(s):

Carbon Dioxide ◽

Equivalence Ratio ◽

Burning Velocity ◽

Flame Temperature ◽

Premixed Flames ◽

Combustion Characteristics ◽

Inert Gas ◽

Chemical Effect ◽

Laminar Burning Velocity ◽

Suppression Effect

In this work, the laminar combustion characteristics of H2/N2/air (H2/CO2/air) were systematically investigated under different hydrogen ratios (40–100%) and equivalence ratios (0.4–1.0) in a closed combustion vessel using the spherical expanding flame method associated with Schlieren technology. The unstretched laminar burning velocities were compared with data from previous study, and the result indicates that excellent agreements are obtained. Numerical simulations were also conducted using GRI3.0 and USC II mechanisms to compare with the present experimental results. The Markstein length for H2/inert gas can be decreased by decreasing the equivalence ratio and hydrogen ratio. The results indicate that the H2/inert gas premixed flames tend to be more unstable with the decrease of equivalence ratio and hydrogen ratio. For H2/N2 mixture, the suppression effect on laminar burning velocity is caused by modified specific heat of mixtures and decreased heat release, which result in a decreased flame temperature. For H2/CO2 mixture, the carbon dioxide has stronger dilution effect than nitrogen in reducing laminar burning velocity owing to both thermal effect and chemical effect.

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Experimental and numerical investigation on the effect of hydrogen addition and N2/CO2 dilution on laminar burning velocity of methane/oxygen mixtures

International Journal of Hydrogen Energy ◽

10.1016/j.ijhydene.2020.04.105 ◽

2020 ◽

Vol 45 (33) ◽

pp. 16838-16850 ◽

Cited By ~ 1

Author(s):

E.V. Jithin ◽

Robin J. Varghese ◽

Ratna Kishore Velamati

Keyword(s):

Numerical Investigation ◽

Burning Velocity ◽

Laminar Burning Velocity ◽

Hydrogen Addition

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Effects of N2 dilution on laminar burning velocity, combustion characteristics and NOx emissions of rich CH4–air premixed flames

Fuel ◽

10.1016/j.fuel.2020.119017 ◽

2021 ◽

Vol 284 ◽

pp. 119017 ◽

Cited By ~ 1

Author(s):

Huaqiang Chu ◽

Longkai Xiang ◽

Shun Meng ◽

Wenlong Dong ◽

Mingyan Gu ◽

...

Keyword(s):

Burning Velocity ◽

Premixed Flames ◽

Combustion Characteristics ◽

Nox Emissions ◽

Laminar Burning Velocity

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Measurement and modelling of the laminar burning velocity of methane-ammonia-air flames at high pressures using a reduced reaction mechanism

Combustion and Flame ◽

10.1016/j.combustflame.2019.03.008 ◽

2019 ◽

Vol 204 ◽

pp. 162-175 ◽

Cited By ~ 33

Author(s):

Ekenechukwu Chijioke Okafor ◽

Yuji Naito ◽

Sophie Colson ◽

Akinori Ichikawa ◽

Taku Kudo ◽

...

Keyword(s):

Reaction Mechanism ◽

High Pressures ◽

Burning Velocity ◽

Laminar Burning Velocity

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The Effect of Impurities in Fuel Grade Dimethyl-Ether on Combustion Characteristics

Volume 1: Turbo Expo 2004 ◽

10.1115/gt2004-53515 ◽

2004 ◽

Cited By ~ 1

Author(s):

Kimihito Narukawa ◽

Hiromi Koizumi ◽

Hiroshi Inoue ◽

Nariyoshi Kobayashi

Keyword(s):

Dimethyl Ether ◽

Diffusion Flame ◽

High Purity ◽

Burning Velocity ◽

Flame Temperature ◽

Combustion Characteristics ◽

Nox Emissions ◽

Laminar Burning Velocity ◽

Gas Turbine Combustor ◽

Effect Of Impurities

In order to investigate the effect of impurities contained in fuel grade dimethyl-ether on combustion characteristics, laminar burning velocity tests and diffusion flame combustor tests were carried out with various contents of impurities in fuel grade dimethyl-ether (with about 0–9wt% methanol and 0–10wt% moisture). From the laminar burning velocity tests, it was found that the burning velocity of fuel grade dimethyl-ether was slightly slower than that of high purity dimethyl-ether and it was faster than that of methane. This indicates that fuel grade dimethyl-ether has a high potential of flash back, like high purity dimethyl-ether. Moreover, the diffusion flame combustor tests showed that NOx emission decreased when the impurities contained in fuel grade dimethyl-ether were increased, however CO emissions were almost constant, irrespective of the content of impurities. Further, by comparing NOx emissions with various contents of impurities in fuel grade dimethyl-ether, it was clear that NOx emissions could be estimated from the adiabatic flame temperature. From these results, a lot of valuable data regarding impurities content has been obtained, which will assist in the development of a gas turbine combustor for fuel grade dimethyl-ether.

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