Jihad Badra - Academia.edu (original) (raw)
Related Authors
National Institute of Technology Rourkela
Uploads
Papers by Jihad Badra
Proceedings of the Combustion Institute, 2016
54th AIAA Aerospace Sciences Meeting, 2016
Combustion and Flame, 2016
Proceedings of the Combustion Institute, 2016
SAE Technical Paper Series, 2016
SAE Technical Paper Series, 2016
SAE Technical Paper Series, 2016
Volume 2: Emissions Control Systems; Instrumentation, Controls, and Hybrids; Numerical Simulation; Engine Design and Mechanical Development, 2015
Crude oil once recovered is further separated in to several distinct fractions to produce a range... more 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 their gasoline and diesel counterparts. Recent efforts have demonstrated usage of LN as transportation fuel for internal combustion engines with slight modifications. In this study, a multicomponent surrogate fuel has been developed for light naphtha fuel using a multi-variable nonlinear constrained optimization scheme. The surrogate, consisting of palette species n-pentane, 2-methylhexane, 2-methylbutane, n-heptane and toluene, was validated against the LN using ignition quality tester following ASTM D6890 methodology. Comparison of LN and the surrogate fuel demonstrated satisfactory agreement.
Phys. Chem. Chem. Phys., 2015
Correction for 'A shock tube stud... more Correction for 'A shock tube study of the branching ratios of propene + OH reaction' by Jihad Badra et al., Phys. Chem. Chem. Phys., 2015, 17, 2421-2431.
Multiple jets of various shapes, orientation and configuration are used regularly in a wide range... more Multiple jets of various shapes, orientation and configuration are used regularly in a wide range of engineering applications to provide heating or cooling with impingement on a plate being one of the most common configurations due to the improved heat transfer rates. Design optimization has largely relied on empirical correlations that are limited by the range over which they were originally generated. Computational Fluid Mechanics is now sufficiently advanced to be used as an alternative method for obtaining optimal designs. This project uses the commercial Fluent package to compute heat transfer from a bank of jets impinging on a plate. Results for a single jet are validated against experimental data. The use of advanced turbulence modeling and appropriate boundary layer formulations are key ingredients for obtaining reliable calculations. The heat transfer resulting form the use of multi-jet configurations will be discussed in the paper.
Combustion and Flame, 2015
A micro-mixer/combustor to mix fuel and oxidant streams into combustible mixtures where flames re... more A micro-mixer/combustor to mix fuel and oxidant streams into combustible mixtures where flames resulting from combustion of the mixture can be sustained inside its combustion chamber is provided. The present design is particularly suitable for diffusion flames. In various aspects the present design mixes the fuel and oxidant streams prior to entering a combustion chamber. The combustion chamber is designed to prevent excess pressure to build up within the combustion chamber, which build up can cause instabilities in the flame. A restriction in the inlet to the combustion chamber from the mixing chamber forces the incoming streams to converge while introducing minor pressure drop. In one or more aspects, heat from combustion products exhausted from the combustion chamber may be used to provide heat to at least one of fuel passing through the fuel inlet channel, oxidant passing through the oxidant inlet channel, the mixing chamber, or the combustion chamber. In one or more aspects, an...
Proceedings of the Combustion Institute, 2016
54th AIAA Aerospace Sciences Meeting, 2016
Combustion and Flame, 2016
Proceedings of the Combustion Institute, 2016
SAE Technical Paper Series, 2016
SAE Technical Paper Series, 2016
SAE Technical Paper Series, 2016
Volume 2: Emissions Control Systems; Instrumentation, Controls, and Hybrids; Numerical Simulation; Engine Design and Mechanical Development, 2015
Crude oil once recovered is further separated in to several distinct fractions to produce a range... more 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 their gasoline and diesel counterparts. Recent efforts have demonstrated usage of LN as transportation fuel for internal combustion engines with slight modifications. In this study, a multicomponent surrogate fuel has been developed for light naphtha fuel using a multi-variable nonlinear constrained optimization scheme. The surrogate, consisting of palette species n-pentane, 2-methylhexane, 2-methylbutane, n-heptane and toluene, was validated against the LN using ignition quality tester following ASTM D6890 methodology. Comparison of LN and the surrogate fuel demonstrated satisfactory agreement.
Phys. Chem. Chem. Phys., 2015
Correction for 'A shock tube stud... more Correction for 'A shock tube study of the branching ratios of propene + OH reaction' by Jihad Badra et al., Phys. Chem. Chem. Phys., 2015, 17, 2421-2431.
Multiple jets of various shapes, orientation and configuration are used regularly in a wide range... more Multiple jets of various shapes, orientation and configuration are used regularly in a wide range of engineering applications to provide heating or cooling with impingement on a plate being one of the most common configurations due to the improved heat transfer rates. Design optimization has largely relied on empirical correlations that are limited by the range over which they were originally generated. Computational Fluid Mechanics is now sufficiently advanced to be used as an alternative method for obtaining optimal designs. This project uses the commercial Fluent package to compute heat transfer from a bank of jets impinging on a plate. Results for a single jet are validated against experimental data. The use of advanced turbulence modeling and appropriate boundary layer formulations are key ingredients for obtaining reliable calculations. The heat transfer resulting form the use of multi-jet configurations will be discussed in the paper.
Combustion and Flame, 2015
A micro-mixer/combustor to mix fuel and oxidant streams into combustible mixtures where flames re... more A micro-mixer/combustor to mix fuel and oxidant streams into combustible mixtures where flames resulting from combustion of the mixture can be sustained inside its combustion chamber is provided. The present design is particularly suitable for diffusion flames. In various aspects the present design mixes the fuel and oxidant streams prior to entering a combustion chamber. The combustion chamber is designed to prevent excess pressure to build up within the combustion chamber, which build up can cause instabilities in the flame. A restriction in the inlet to the combustion chamber from the mixing chamber forces the incoming streams to converge while introducing minor pressure drop. In one or more aspects, heat from combustion products exhausted from the combustion chamber may be used to provide heat to at least one of fuel passing through the fuel inlet channel, oxidant passing through the oxidant inlet channel, the mixing chamber, or the combustion chamber. In one or more aspects, an...