Turbulent Consumption Speeds of High Hydrogen Content Fuels From 1–20 atm

Author(s):  
Prabhakar Venkateswaran ◽  
Andrew D. Marshall ◽  
Jerry M. Seitzman ◽  
Tim C. Lieuwen

This work describes measurements and analysis of the turbulent consumption speeds, ST,GC, of H2/CO fuel blends. We report measurements of ST,GC at pressures and normalized turbulence intensities, u′rms/SL,0 up to 20 atm and 1800, respectively for a variety of H2/CO mixtures and equivalence ratios. In addition, we present correlations of these data using laminar burning velocities of highly stretched flames, SL,max, derived from quasi-steady leading points models. These analyses show that SL,max can be used to correlate data over a broad range of fuel compositions, but do not capture the pressure sensitivity of ST,GC. We suggest that these pressure effects are more fundamentally a manifestation of non-quasi-steady behavior in the mass burning rate at the flame leading points.

Author(s):  
Prabhakar Venkateswaran ◽  
Andrew D. Marshall ◽  
Jerry M. Seitzman ◽  
Tim C. Lieuwen

This work describes measurements and analysis of the turbulent consumption speeds, ST,GC, of H2/CO fuel blends. We report measurements of ST,GC at pressures and normalized turbulence intensities, urms'/SL,0, up to 20 atm and 1800, respectively, for a variety of H2/CO mixtures and equivalence ratios. In addition, we present correlations of these data using laminar burning velocities of highly stretched flames, SL,max, derived from quasi-steady leading points models. These analyses show that SL,max can be used to correlate data over a broad range of fuel compositions but do not capture the pressure sensitivity of ST,GC. We suggest that these pressure effects are more fundamentally a manifestation of non-quasi-steady behavior in the mass burning rate at the flame leading points.


2017 ◽  
Vol 4 (1) ◽  
Author(s):  
Sz. Tomasek ◽  
Z. Varga ◽  
A. Holló ◽  
N. Miskolczi ◽  
J. Hancsók

AbstractThe harmful effects of aviation can only be reduced by using alternative fuels with excellent burning properties and a high hydrogen content in the constituent molecules. Due to increasing plastic consumption the amount of the plastic waste is also higher. Despite the fact that landfill plastic waste has been steadily reduced, the present scenario is not satisfactory. Therefore, the aim of this study is to produce JET fuel containing an alternative component made from straight-run kerosene and the waste polyethylene cracking fraction. We carried out our experiments on a commercial NiMo/Al


Lithos ◽  
2014 ◽  
Vol 202-203 ◽  
pp. 429-441 ◽  
Author(s):  
Luke Hilchie ◽  
Yana Fedortchouk ◽  
Sergei Matveev ◽  
Maya G. Kopylova

2020 ◽  
Vol 18 (1) ◽  
pp. 23-28
Author(s):  
G.E. Ergazieva ◽  
M.M. Telbayeva ◽  
K. Dossumov ◽  
A.I. Niyazbayeva

Hydrogen production is one of the most promising ways to develop the energy sector of the future. Hydrogen does not exist in nature in its elemental form and therefore, it must be obtained from hydrocarbon, water or any other hydrogen-containing compounds. The variety of potential sources of raw materials for hydrogen production is one of the important reasons, in which hydrogen is such a promising energy carrier. The article describes methods for preparing the basic energy carrier, hydrogen from natural gas, ethanol etc. Among various types of raw materials, bioethanol is very attractive because of its relatively high hydrogen content, availability, as well as safety during storage and handling.


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