Next Article in Journal
Analytic Modeling of Vehicle Fuel Consumption
Next Article in Special Issue
A Comparison of Optimal Operation of a Residential Fuel Cell Co-Generation System Using Clustered Demand Patterns Based on Kullback-Leibler Divergence
Previous Article in Journal
Second-Order Harmonic Reduction Technique for Photovoltaic Power Conditioning Systems Using a Proportional-Resonant Controller
Previous Article in Special Issue
Simulation of Synthesis Gas Production from Steam Oxygen Gasification of Colombian Coal Using Aspen Plus®
Open AccessArticle

Burning Behaviour of High-Pressure CH4-H2-Air Mixtures

CNR — Istituto Motori, Via Marconi 4, Napoli 80125, Italy
Author to whom correspondence should be addressed.
Energies 2013, 6(1), 97-116;
Received: 8 November 2012 / Revised: 7 December 2012 / Accepted: 20 December 2012 / Published: 2 January 2013
Experimental characterization of the burning behavior of gaseous mixtures has been carried out, analyzing spherical expanding flames. Tests were performed in the Device for Hydrogen-Air Reaction Mode Analysis (DHARMA) laboratory of Istituto Motori—CNR. Based on a high-pressure, constant-volume bomb, the activity is aimed at populating a systematic database on the burning properties of CH4, H2 and other species of interest, in conditions typical of internal combustion (i.c.) engines and gas turbines. High-speed shadowgraph is used to record the flame growth, allowing to infer the laminar burning parameters and the flame stability properties. Mixtures of CH4, H2 and air have been analyzed at initial temperature 293÷305 K, initial pressure 3÷18 bar and equivalence ratio = 1.0. The amount of H2 in the mixture was 0%, 20% and 30% (vol.). The effect of the initial pressure and of the Hydrogen content on the laminar burning velocity and the Markstein length has been evaluated: the relative weight and mutual interaction has been assessed of the two controlling parameters. Analysis has been carried out of the flame instability, expressed in terms of the critical radius for the onset of cellularity, as a function of the operating conditions. View Full-Text
Keywords: combustion; laminar burning velocity; hydrogen; methane; shadowgraph combustion; laminar burning velocity; hydrogen; methane; shadowgraph
Show Figures

Graphical abstract

MDPI and ACS Style

Moccia, V.; D'Alessio, J. Burning Behaviour of High-Pressure CH4-H2-Air Mixtures. Energies 2013, 6, 97-116.

Show more citation formats Show less citations formats

Article Access Map by Country/Region

Only visits after 24 November 2015 are recorded.
Search more from Scilit
Back to TopTop