Abdullah Bajwa
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View article: Development of a semi-empirical physical model for transient NO<sub>x</sub> emissions prediction from a high-speed diesel engine
Development of a semi-empirical physical model for transient NO<sub>x</sub> emissions prediction from a high-speed diesel engine Open
With emissions regulations becoming increasingly restrictive and the advent of real driving emissions limits, control of engine-out NO x emissions remains an important research topic for diesel engines. Progress in experimental engine deve…
View article: Consolidating engineering design and design thinking frameworks for teaching design to engineering students at liberal arts universities
Consolidating engineering design and design thinking frameworks for teaching design to engineering students at liberal arts universities Open
In the post-industrial revolution era, after a prolonged period of ever-increasing emphasis on specialism in undergraduate engineering education, in recent decades there has been a shift towards promoting generalism and the development of …
View article: Closed-loop mechanical engineering design teaching to electrical and computer engineering students using CAD, CAE, and 3D printing
Closed-loop mechanical engineering design teaching to electrical and computer engineering students using CAD, CAE, and 3D printing Open
A computer aided design and engineering (CAD, CAE) course was designed to train senior electrical and computer engineering students in the mechanical engineering design process and introduce them to selected relevant topics from machine el…
View article: Contribution of Road Transport to Pakistan’s Air Pollution in the Urban Environment
Contribution of Road Transport to Pakistan’s Air Pollution in the Urban Environment Open
The urban areas of Pakistan exhibit some of the world’s highest levels of air pollution, primarily due to sub-2.5 μm particulate emissions. This issue significantly impairs both the country’s economy and the quality of life of its resident…
View article: Low Temperature Heat Release and <i>ϕ</i> -Sensitivity Characteristics of Iso-Octane/Air Mixtures
Low Temperature Heat Release and <i>ϕ</i> -Sensitivity Characteristics of Iso-Octane/Air Mixtures Open
Chemical energy release from high octane number fuels via low temperature heat release (LTHR) can help develop high-efficiency gasoline engines by promoting ultra-lean combustion in spark ignition engines and improving combustion control i…
View article: Prospects of Controlled Auto-Ignition Based Thermal Propulsion Units for Modern Gasoline Vehicles
Prospects of Controlled Auto-Ignition Based Thermal Propulsion Units for Modern Gasoline Vehicles Open
Gasoline engines employing the spatially distributed auto-ignition combustion mode, known as controlled auto-ignition (CAI), are a prospective technology for significantly improving engine efficiency and reducing emissions. This review pap…
View article: PR-457-17201-R04 Residual Gas Fraction Estimation Based on Measured Engine Parameters - Phase IV
PR-457-17201-R04 Residual Gas Fraction Estimation Based on Measured Engine Parameters - Phase IV Open
Based on experimental characterization of the scavenging behavior of a cross-scavenged, piston-aspirated, two-stroke, natural gas engine in phase III of the current project, a computationally inexpensive simple scavenging model was improve…
View article: PR-457-17201-R03 Residual Gas Fraction Estimation Based on Measured In-Cylinder Pressure - Phase III
PR-457-17201-R03 Residual Gas Fraction Estimation Based on Measured In-Cylinder Pressure - Phase III Open
An experimental study was carried out to characterize the scavenging behavior of a cross-scavenged, piston-aspirated, two-stroke, natural gas engine to aid in the development of computationally inexpensive simple scavenging models for onbo…
View article: PR-457-17201-R02 Residual Gas Fraction Estimation Based on Measured Engine Parameters
PR-457-17201-R02 Residual Gas Fraction Estimation Based on Measured Engine Parameters Open
Gas exchange processes in two-stroke internal combustion engines, commonly referred to as scavenging, are responsible for removing the exhaust gases in the combustion chamber and preparing the combustible fuel-oxidizer mixture that undergo…
View article: PR-457-17201-R01 Residual Gas Fraction Estimation Based on Measured In-Cylinder Pressure
PR-457-17201-R01 Residual Gas Fraction Estimation Based on Measured In-Cylinder Pressure Open
Developing a reliable means of predicting and controlling engine operation at various operating conditions may be a reasonable pathway for meeting increasingly stringent engine emission regulations. In order to do so, estimates of the mixt…
View article: First and Second Law Analyses of a Large Bore Two Stroke Spark Ignition Engine Fueled with Natural Gas
First and Second Law Analyses of a Large Bore Two Stroke Spark Ignition Engine Fueled with Natural Gas Open
A zero dimensional thermodynamic model with no spatial resolution has been developed to analyze the effectiveness of energy and exergy utilization in a large bore, single cylinder, two-stroke engine. Exergy analysis was performed to supple…