Homogeneous Combustion Catalysts for Efficiency Improvements and Emission Reduction in Diesel Engines. Australia currently consumes about 25 billion litres of diesel annually through the mining industry, road transportation and electricity generation for remote communities which presentins a significant cost and carbon footprint. A small reduction of say 2.5% in diesel consumption nationwide by improving engine performance and energy efficiency can result in more than $0.5 billion in savings and ....Homogeneous Combustion Catalysts for Efficiency Improvements and Emission Reduction in Diesel Engines. Australia currently consumes about 25 billion litres of diesel annually through the mining industry, road transportation and electricity generation for remote communities which presentins a significant cost and carbon footprint. A small reduction of say 2.5% in diesel consumption nationwide by improving engine performance and energy efficiency can result in more than $0.5 billion in savings and a reduction of 1.75 million tonnes in greenhouse gas emission annually. The homogeneous combustion catalysts, to be developed in this research for direct doping into diesel supply system, will help realise these objectives and contribute to the development of an environmentally sustainable Australia.Read moreRead less
Modelling of Nitric Oxides and Carbon Monoxide Emissions from Bagasse-Fires Boilers. The project aims to develop computational models to predict emissions of nitric oxides and carbon monoxide from sugar-mill boilers burning bagasse. Bagasse combustion does not contribute to greenhouse gas emissions and clean and efficient combustion of this fuel has become very important for the sugar industry and for Australia. The project combines the opportunity of direct boiler measurements by SRI with the m ....Modelling of Nitric Oxides and Carbon Monoxide Emissions from Bagasse-Fires Boilers. The project aims to develop computational models to predict emissions of nitric oxides and carbon monoxide from sugar-mill boilers burning bagasse. Bagasse combustion does not contribute to greenhouse gas emissions and clean and efficient combustion of this fuel has become very important for the sugar industry and for Australia. The project combines the opportunity of direct boiler measurements by SRI with the modelling expertise at the University to develop combustion-kinetics models for these species. The models will be incorporated into the previously developed computational fluid dynamics - combustion code of the furnace to give the capability of emission prediction as a function of burner operating conditions and fuel parameters.Read moreRead less
Detailed understanding of the behaviour of soot in, and emission from, turbulent flames and fires. While combustion processes involving soot have been widely employed for many years, their great complexity puts them beyond present capacity to understand or model reliably. Within a flame, soot plays an important role in radiant heat transfer, and hence in energy efficiency. Beyond a flame, soot can either be emitted as an unwanted air pollutant or as a desirable source of nano-particles, dependin ....Detailed understanding of the behaviour of soot in, and emission from, turbulent flames and fires. While combustion processes involving soot have been widely employed for many years, their great complexity puts them beyond present capacity to understand or model reliably. Within a flame, soot plays an important role in radiant heat transfer, and hence in energy efficiency. Beyond a flame, soot can either be emitted as an unwanted air pollutant or as a desirable source of nano-particles, depending on the application. The benefits to society from improved understanding and predictive capability include reduced air pollution, improved health and safety, increased efficiency in the utilisation of both fossil and alternative fuels, the support of the rapidly growing sector employing carbon nano-particles and increased fire safety. Read moreRead less
Reactivity of Carbon-Carbon Composites. This project investigates the reactivity of pitch-coke carbon composites with the aim of minimising oxidative carbon loss from anodes during aluminium smelting. Such carbon loss accounts for about 15 percent of the total carbon consumption in smelting, and its reduction will provide considerable economic benefit besides contributing to mitigation of greenhouse gas emission. In the present project the effect of coke calcination and composite baking temper ....Reactivity of Carbon-Carbon Composites. This project investigates the reactivity of pitch-coke carbon composites with the aim of minimising oxidative carbon loss from anodes during aluminium smelting. Such carbon loss accounts for about 15 percent of the total carbon consumption in smelting, and its reduction will provide considerable economic benefit besides contributing to mitigation of greenhouse gas emission. In the present project the effect of coke calcination and composite baking temperatures on the relationship between anode microstructure and reactivity in oxygen as well as carbon dioxide will be investigated, and optimum process conditions determined for minimum reactive carbon loss during smelting.Read moreRead less
Study of hydrocarbon flames under heat and gas recirculation conditions. This project aims to study gaseous flames under heat and gas recirculation conditions. This technology has been proven to reduce fuel consumption, improve thermal efficiency and substantially reduce nitric oxides emission. The effect of mixing, turbulence and temperature on the structure and stability of these flames will be investigated. The project combines experimental and computational research applied to a laboratory s ....Study of hydrocarbon flames under heat and gas recirculation conditions. This project aims to study gaseous flames under heat and gas recirculation conditions. This technology has been proven to reduce fuel consumption, improve thermal efficiency and substantially reduce nitric oxides emission. The effect of mixing, turbulence and temperature on the structure and stability of these flames will be investigated. The project combines experimental and computational research applied to a laboratory scale burner and a small scale furnace. The main objectives are to better understand the chemical pathways in low temperature hydrocarbon flames under heat and gas recirculation conditions and to understand the effect of mixing and turbulence on the flame structure and pollutants emission.Read moreRead less
Advanced modelling and optimisation of Underground Coal Gasification. The last decade is characterised by increasing interest of many countries in obtaining and developing Underground Coal Gasification (UCG) technologies. Recent long-term successful trial in Chinchilla has proven that the technology is ready for commercial use but the fundamental research into UCG is needed for further improvement of the technology performance in commercial applications. The major goal of this project is in comb ....Advanced modelling and optimisation of Underground Coal Gasification. The last decade is characterised by increasing interest of many countries in obtaining and developing Underground Coal Gasification (UCG) technologies. Recent long-term successful trial in Chinchilla has proven that the technology is ready for commercial use but the fundamental research into UCG is needed for further improvement of the technology performance in commercial applications. The major goal of this project is in combining most recent advances in combustion modelling with practical UCG operations and developing new advanced models specifically for UCG diagnostics and optimisation. The project outcomes involve: better understanding and optimisation of UCG processes and further development of advanced modelling techniques.
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Experimental and modelling development of advanced symmetrical fuel cells. Fuel cells are advanced energy conversion devices with high efficiency and low emissions. The overall goal of this project is to increase the competitiveness of the fuel cell technology with currently matured power generation technologies based on fossil fuel combustion through innovations. Both experimental development and modelling studies will be performed. It is expected that: reduced materials, fabrication and mainte ....Experimental and modelling development of advanced symmetrical fuel cells. Fuel cells are advanced energy conversion devices with high efficiency and low emissions. The overall goal of this project is to increase the competitiveness of the fuel cell technology with currently matured power generation technologies based on fossil fuel combustion through innovations. Both experimental development and modelling studies will be performed. It is expected that: reduced materials, fabrication and maintenance costs; improved performance; increased coking resistance and sulfur tolerance; and prolonged lifetime of solid oxide fuel cells will be achieved. This project endeavours to advance the field of electrochemical energy conversion. It is also expected to expand the science and engineering knowledge base and pave the way to sustainable energy systems.Read moreRead less
Selective generation of hydrogen from biomass and waste fuels. Biomass fuels account for 14% of global energy supply. This is likely to increase in future as the population increases, energy demand rises, cheap oil and coal reserves are depleted, and the effects of global warming become more readily visible. In Australia the development of a sustainable hydrogen economy is a national priority. The hydrogen economy could bring about improved energy security, substantially reduced greenhouse gas e ....Selective generation of hydrogen from biomass and waste fuels. Biomass fuels account for 14% of global energy supply. This is likely to increase in future as the population increases, energy demand rises, cheap oil and coal reserves are depleted, and the effects of global warming become more readily visible. In Australia the development of a sustainable hydrogen economy is a national priority. The hydrogen economy could bring about improved energy security, substantially reduced greenhouse gas emissions, improved energy efficiency and improved air quality. This proposal directly addresses this challenge by investigating the science underpinning a large-scale sustainable hydrogen synthesis process using biomass and waste fuels. Read moreRead less
A Comprehensive Kinetic Model for Sulfur Reactions in Combustion, Gasification, and Chemical Processing. Sulfur chemistry in high temperature processes is poorly understood, leading to uncertainties in the design of these processes and in the control of their emissions. In particular, new approaches to lowering greenhouse emissions which depend on the combustion and gasification of coal, biomass, or refuse-derived fuel, such as integrated gasification combined cycle processes, are especially aff ....A Comprehensive Kinetic Model for Sulfur Reactions in Combustion, Gasification, and Chemical Processing. Sulfur chemistry in high temperature processes is poorly understood, leading to uncertainties in the design of these processes and in the control of their emissions. In particular, new approaches to lowering greenhouse emissions which depend on the combustion and gasification of coal, biomass, or refuse-derived fuel, such as integrated gasification combined cycle processes, are especially affected by these uncertainties. This project seeks to combine experimental measurements and quantum chemical modelling to produce a detailed mechanistic model for the reactions of sulfur in high-temperature systems. Such a model will provide designers with a tool to optimise these complex interacting systems.Read moreRead less
Advanced Proton-Conducting Ceramic FCs for Power Generation from Ammonia . The project aims to design an innovative ammonia fuel cell using a new perovskite substrate decorated with metal nanoparticles, which demonstrates multi-functionalities and tackles most challenges of conventional fuel cells (FCs). The key concept of this project is the designing of the novel architected smart perovskite as both anode and electrolyte of the fuel cell by systematic modelling and experimental development. T ....Advanced Proton-Conducting Ceramic FCs for Power Generation from Ammonia . The project aims to design an innovative ammonia fuel cell using a new perovskite substrate decorated with metal nanoparticles, which demonstrates multi-functionalities and tackles most challenges of conventional fuel cells (FCs). The key concept of this project is the designing of the novel architected smart perovskite as both anode and electrolyte of the fuel cell by systematic modelling and experimental development. The versatile cell components developed in this project will improve the operational stability and efficiency of the fuel cell, thereby providing a promising pathway for ammonia fuel cells to replace hydrogen fuel cells. This study will reinforce the development of the future supply of reliable, low cost and clean energy. Read moreRead less