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Secondary aerosol formation from engine exhaust emissions. This project aims to investigate the role of reactive volatile organic compounds from vehicles using alternative fuels in the formation and evolution of secondary organic aerosols (SOA). Expected outcomes of the project include greatly improved understanding of the mechanisms and precursors of SOA formation. The benefits should provide the knowledge needed to set vehicle emission regulations that can properly control urban air pollution ....Secondary aerosol formation from engine exhaust emissions. This project aims to investigate the role of reactive volatile organic compounds from vehicles using alternative fuels in the formation and evolution of secondary organic aerosols (SOA). Expected outcomes of the project include greatly improved understanding of the mechanisms and precursors of SOA formation. The benefits should provide the knowledge needed to set vehicle emission regulations that can properly control urban air pollution episodes because the mechanisms and precursors of its formation will be better understood. The project will also provide an experimental framework that will guide policy formulation and provide the science needed for development of strategies to improve air quality and health.Read moreRead less
Optimising gaseous and particulate emissions from diesel engines. About $3.7 billion is spent annually in Australia on respiratory diseases. Diesel vehicle emissions of nano- and ultra-fine urban air particulate pollution are a significant factor in this disease. This project will directly addresses this problem by developing a technology to monitor and reduce diesel particulate emissions.
Microwave-generated plasma combustion for in-cylinder soot reduction. Microwave-generated plasma combustion for in-cylinder soot reduction. This project aims to develop a microwave-generated plasma combustion system for the in-cylinder formation of hydroxyl radicals, achieving cost-effective reduction of engine-out emissions in diesel engines. This new system should overcome high-load particulate emissions and high-cost fuel injection systems, which limit further improvement of diesel engines. T ....Microwave-generated plasma combustion for in-cylinder soot reduction. Microwave-generated plasma combustion for in-cylinder soot reduction. This project aims to develop a microwave-generated plasma combustion system for the in-cylinder formation of hydroxyl radicals, achieving cost-effective reduction of engine-out emissions in diesel engines. This new system should overcome high-load particulate emissions and high-cost fuel injection systems, which limit further improvement of diesel engines. This project expects to accomplish this by combining laser diagnostics in optical combustion facilities and computational modelling, which should lead to the scientific knowledge accelerating the development cycle of the new system.Read moreRead less
Making best use of biofuels – understanding the interactions between alcohol and hydrocarbon fuels in engine combustion. Biofuels are increasingly used as blending components for transport fuels. Biofuels possess much different chemical structures from conventional fuels, and can therefore interact with hydrocarbon fuels during engine combustion processes and consequently affect engine efficiency and emissions. This project aims to investigate the chemical interactions between representative com ....Making best use of biofuels – understanding the interactions between alcohol and hydrocarbon fuels in engine combustion. Biofuels are increasingly used as blending components for transport fuels. Biofuels possess much different chemical structures from conventional fuels, and can therefore interact with hydrocarbon fuels during engine combustion processes and consequently affect engine efficiency and emissions. This project aims to investigate the chemical interactions between representative compounds of biofuels (ethanol) and fossil fuels (n-heptane, iso-octane and toluene) during engine autoignition processes. The outcomes will fill a significant gap in our understanding for biofuel combustion chemistry, essential for building predictive combustion models, and will guide the best use of the precious Australian biofuel resources to reduce carbon dioxide emissions. Read moreRead less
Natural gas direct injection in advanced engines and powertrains. Natural gas direct injection in advanced engines and powertrains. This project aims to quantify and understand how future, advanced passenger vehicles might perform when optimised for the direct injection (DI) of natural gas. Such production vehicles do not exist, largely because production DI systems for natural gas, spark ignition engines are not yet available. This project will examine both advanced conventional and hybrid vehi ....Natural gas direct injection in advanced engines and powertrains. Natural gas direct injection in advanced engines and powertrains. This project aims to quantify and understand how future, advanced passenger vehicles might perform when optimised for the direct injection (DI) of natural gas. Such production vehicles do not exist, largely because production DI systems for natural gas, spark ignition engines are not yet available. This project will examine both advanced conventional and hybrid vehicles using a suite of state-of-the-art experimental and numerical techniques. This project will quantify these vehicles’ environmental, technical and economic performance to determine whether DI natural gas, conventional and hybrid vehicles might reduce substantial greenhouse gas (GHG) emissions whilst avoiding any consumer penalty. This research could contribute to global GHG abatement.Read moreRead less
Understanding combustion in gasoline compression ignition conditions. This project aims to provide the first fundamental-level understanding of the processes of ignition, combustion, and pollutant formation relevant to a new, highly efficient combustion mode known as gasoline compression ignition (GCI). This project aims to provide information using a unique combination of direct numerical simulations, advanced transported probability density function modelling and a suite of laser measurements ....Understanding combustion in gasoline compression ignition conditions. This project aims to provide the first fundamental-level understanding of the processes of ignition, combustion, and pollutant formation relevant to a new, highly efficient combustion mode known as gasoline compression ignition (GCI). This project aims to provide information using a unique combination of direct numerical simulations, advanced transported probability density function modelling and a suite of laser measurements in a high-pressure combustion chamber. GCI engines have significant potential to improve fuel economy and reduce emissions harmful to health and the environment. The outcomes from this project will lead to accelerated development of the GCI engine, and more optimal GCI solutions to be found.Read moreRead less
Development of low emissions compression-ignition engines via ethanol port-injection dual-fuelling. The project aims to develop a more efficient and more cost-effective way of utilising clean-burning ethanol fuel. Port-injection fuelling of ethanol as a separate fuel stream in compression-ignition engines will be studied fundamentally and combined with novel combustion strategies to overcome problems that occur at high ethanol substitution.
Optimising flex fuel engine performance. This project will enable alternative fuels to be used optimally in engines for transport and distributed electricity generation. This will benefit Australian industry through better engine control technology and the Australian public through reduced emissions and cost in running engines using natural gas or LPG.
Discovery Early Career Researcher Award - Grant ID: DE220100552
Funder
Australian Research Council
Funding Amount
$428,025.00
Summary
Improving pollutants dispersion in street canyons for better urban living. Urban street canyons formed by tall buildings restrict dispersion of vehicle emissions. This poses severe health risks to the public by aggravating roadside air pollution, but is often overlooked in city planning. This project aims to uncover the mechanisms controlling vehicle emissions dispersion processes in urban street canyons by combining novel field experiments and numerical simulations. Expected outcomes include a ....Improving pollutants dispersion in street canyons for better urban living. Urban street canyons formed by tall buildings restrict dispersion of vehicle emissions. This poses severe health risks to the public by aggravating roadside air pollution, but is often overlooked in city planning. This project aims to uncover the mechanisms controlling vehicle emissions dispersion processes in urban street canyons by combining novel field experiments and numerical simulations. Expected outcomes include a validated tool for predicting roadside air quality, control measures for reducing air pollution and guidelines for better future urban planning. This project expects to critically assist policy makers and urban planners to effectively manage city development projects and safeguard a high air quality standard in our cities.Read moreRead less
Flame-wall interactions in diesel engine environments. This project aims to advance the fundamental understanding of flame-wall interactions in diesel engines, which is currently very limited despite the wall's significant impact on combustion and pollutants. The aim is to perform the most comprehensive set of measurements to date in a high-pressure chamber and optically accessible engine, including planar imaging of key species and soot, and space-/time-resolved measurements of wall temperature ....Flame-wall interactions in diesel engine environments. This project aims to advance the fundamental understanding of flame-wall interactions in diesel engines, which is currently very limited despite the wall's significant impact on combustion and pollutants. The aim is to perform the most comprehensive set of measurements to date in a high-pressure chamber and optically accessible engine, including planar imaging of key species and soot, and space-/time-resolved measurements of wall temperature. These are intended to be complemented by the first transported probability density function modelling of a diesel spray flame that includes soot, radiation and wall heat transfer. The expected outcomes will greatly advance understanding of flame-wall interactions, thus contributing to the development of cleaner and more efficient engines.Read moreRead less