Ahfaz Ahmed
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View article: A comprehensive combustion chemistry study of n-propylcyclohexane
A comprehensive combustion chemistry study of n-propylcyclohexane Open
Alkylated cycloalkanes are vital components in gasoline, aviation, and diesel fuels; however, their combustion chemistry has been less investigated compared to other hydrocarbon classes. In this work, the combustion kinetics of n-propylcyc…
View article: Curvature effects on NO formation in wrinkled laminar ammonia/hydrogen/nitrogen-air premixed flames
Curvature effects on NO formation in wrinkled laminar ammonia/hydrogen/nitrogen-air premixed flames Open
The formation of nitrogen oxide (NO) in wrinkled laminar NH3/H2/N2-air premixed flames is investigated utilizing two-dimensional Direct Numerical Simulation (DNS) with detailed chemical kinetics as well as one-dimensional freely propagatin…
View article: Detailed examination of the combustion of diesel and glycerol emulsions in a compression ignition engine
Detailed examination of the combustion of diesel and glycerol emulsions in a compression ignition engine Open
This study examines glycerol as an additive to diesel fuel to demonstrate it has the potential to suppress the formation of soot/PM. The investigation of a diesel/glycerol emulsion included an engine trial, high-speed imaging in an optical…
View article: Auto-ignition of direct injection spray of light naphtha, primary reference fuels, gasoline and gasoline surrogate
Auto-ignition of direct injection spray of light naphtha, primary reference fuels, gasoline and gasoline surrogate Open
View article: Small ester combustion chemistry: Computational kinetics and experimental study of methyl acetate and ethyl acetate
Small ester combustion chemistry: Computational kinetics and experimental study of methyl acetate and ethyl acetate Open
View article: A comprehensive detailed kinetic mechanism for the simulation of transportation fuels
A comprehensive detailed kinetic mechanism for the simulation of transportation fuels Open
This work presents a recently compiled comprehensive model for transportations fuels resulting from the collaboration of three research groups: LLNL, NUI Galway and KAUST. In the past 5 years new fundamental calculations led to significant…
View article: Impact of thermodynamic properties and heat loss on ignition of transportation fuels in rapid compression machines
Impact of thermodynamic properties and heat loss on ignition of transportation fuels in rapid compression machines Open
View article: Autoignition of straight-run naphtha: A promising fuel for advanced compression ignition engines
Autoignition of straight-run naphtha: A promising fuel for advanced compression ignition engines Open
View article: Autoignition characteristics of oxygenated gasolines
Autoignition characteristics of oxygenated gasolines Open
View article: Ignition studies of two low-octane gasolines
Ignition studies of two low-octane gasolines Open
View article: Ignition delay times of Gasoline Distillation Cuts measured with Ignition Quality Tester
Ignition delay times of Gasoline Distillation Cuts measured with Ignition Quality Tester Open
Tailoring fuel properties to maximize the efficiency of internal combustion engines is a way towards achieving cleaner combustion systems. In this work, the ignition properties of various gasoline fuel distillation cuts are analyzed to bet…
View article: Kinetic modelling and experimental study of small esters: Methyl acetate and ethyl acetate
Kinetic modelling and experimental study of small esters: Methyl acetate and ethyl acetate Open
A detailed chemical kinetic mechanism comprising methyl acetate and ethyl acetate has been developed based on the previous work by Westbrook et al. [1]. The newly developed kinetic mechanism has been updated with new reaction rates from re…
View article: Compositional effects on the ignition of FACE gasolines
Compositional effects on the ignition of FACE gasolines Open
View article: Oxidation of Alkane Rich Gasoline Fuels and their Surrogates in a Motored Engine
Oxidation of Alkane Rich Gasoline Fuels and their Surrogates in a Motored Engine Open
The validation of surrogates formulated using a computational framework by Ahmed et al.[1]for two purely paraffinic gasoline fuels labelled FACE A and FACE C was undertaken in this study. The ability of these surrogate mixtures to be used …
View article: Surrogate fuel formulation for light naphtha combustion in advanced combustion engines
Surrogate fuel formulation for light naphtha combustion in advanced combustion engines Open
Crude oil once recovered is further separated in to several distinct fractions to produce a range of energy and chemical products. One of the less processed fractions is light naphtha (LN), hence they are more economical to produce than th…