On the mechanism of boiling instability in microchannels. This project will enable designers to create highly efficient miniaturised devices based on the boiling of fluids such as water or organics. These devices include micro-power generation systems, coolers for computer chips and solar collectors, and micro-chemical process systems. Such devices provide environmental, safety and economic benefits.
High Energy Density - High Delivery Rate Thermal Energy Storage. This project aims to address the intermittency of renewable energy sources using novel thermal storage media. Advanced heat transfer modelling and in situ neutron diffraction and imaging are intended to be used to optimise the microstructure of newly developed miscibility gap thermal storage systems. The new media store energy as the latent heat of fusion of one phase in a stable, high thermal conductivity inverted microstructure. ....High Energy Density - High Delivery Rate Thermal Energy Storage. This project aims to address the intermittency of renewable energy sources using novel thermal storage media. Advanced heat transfer modelling and in situ neutron diffraction and imaging are intended to be used to optimise the microstructure of newly developed miscibility gap thermal storage systems. The new media store energy as the latent heat of fusion of one phase in a stable, high thermal conductivity inverted microstructure. The high energy density of the latent heat (0.5-4.5 Mega Joules/Litre) requires storage volumes as little as five per cent of those relying upon heat capacity and the metal matrix has a hundred-fold greater thermal conductivity than current systems. It is proposed that a range of such materials will be engineered for concentrated solar thermal and space heating applications.Read moreRead less
Design of high performance heat sink composites. Heat sink composites are advanced materials that have the very substantial but widely untapped potential to reduce Society's energy consumption by means of utilizing waste energy or through energy-efficient temperature control. This Project uses computational analysis and parallel experimentation to design optimum heat-sink composites for highly energy-efficient temperature control of chemical batteries or electronic components as well as the mean ....Design of high performance heat sink composites. Heat sink composites are advanced materials that have the very substantial but widely untapped potential to reduce Society's energy consumption by means of utilizing waste energy or through energy-efficient temperature control. This Project uses computational analysis and parallel experimentation to design optimum heat-sink composites for highly energy-efficient temperature control of chemical batteries or electronic components as well as the means for the efficient heating/cooling of buildings. The outcomes of the project will lay the scientific foundation for the industrial scale development of advanced heat sinks that will lower energy costs and decrease climate changing emissions. This represents a new market for Australian industry.Read moreRead less
Thermal transport in multi-phase flows for concentrating solar applications. This project seeks to advance the field of heat transfer in high-temperature systems involving liquid metals, with emphasis on energy storage and solar power technologies. The concept couples a tubular sodium boiler with a sodium chloride phase-change storage system for continuous energy supply. Sodium chloride is low cost and has a melting temperature suitable for a wide range of industrial processes. The project plans ....Thermal transport in multi-phase flows for concentrating solar applications. This project seeks to advance the field of heat transfer in high-temperature systems involving liquid metals, with emphasis on energy storage and solar power technologies. The concept couples a tubular sodium boiler with a sodium chloride phase-change storage system for continuous energy supply. Sodium chloride is low cost and has a melting temperature suitable for a wide range of industrial processes. The project plans to address the challenge of sodium stability in highly irradiated tubes by investigating mass, momentum, energy and radiative transport in liquid metals. It is intended that this will inform the design and testing of novel sodium boilers to provide stable and isothermal process heat for continuous or on-demand production of power, chemical fuels and commodities.Read moreRead less
A Fundamental Study on Redox Behaviour of Oxygen Carriers in Chemical Looping Combustion. Our goal here is to acquire fundamental knowledge about the redox behaviour of metal oxide oxygen carriers which, arguably, underpins the feasibility of the Chemical Looping Combustion (CLC) concept. Although the proposed work is fundamental and will contribute to the advancement of knowledge, the results will have immediate practical applications in power generation industry at both national and internatio ....A Fundamental Study on Redox Behaviour of Oxygen Carriers in Chemical Looping Combustion. Our goal here is to acquire fundamental knowledge about the redox behaviour of metal oxide oxygen carriers which, arguably, underpins the feasibility of the Chemical Looping Combustion (CLC) concept. Although the proposed work is fundamental and will contribute to the advancement of knowledge, the results will have immediate practical applications in power generation industry at both national and international levels. This should significantly contribute to the Australian Government's efforts in producing world class solutions for abatement of greenhouse emissions (Research Priority 1: An Environmentally Sustainable Australia, Priority Goal 1.4 - Reducing and capturing emissions in transport and energy generation).Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE160100131
Funder
Australian Research Council
Funding Amount
$300,000.00
Summary
Multifunctional micro/nano-engineered solar thermal receivers. This project is designed to develop a new class of thermal receivers that overcome key challenges in today's concentrating solar thermal systems. The development of accurate micro/nanofabrication and characterisation techniques in recent years has made it possible to achieve thermofluid devices that are engineered from the bottom up to achieve high performance at relatively low cost. This project aims to develop a new class of solar ....Multifunctional micro/nano-engineered solar thermal receivers. This project is designed to develop a new class of thermal receivers that overcome key challenges in today's concentrating solar thermal systems. The development of accurate micro/nanofabrication and characterisation techniques in recent years has made it possible to achieve thermofluid devices that are engineered from the bottom up to achieve high performance at relatively low cost. This project aims to develop a new class of solar thermal receivers which use micro/nanotechnology to directly absorb concentrated solar energy with very little pumping power and minimal radiative heat loss. By tailoring the geometry and materials inside the receiver, the project expects to achieve a unique level of integrated optical, heat transfer and fluid flow control.Read moreRead less
The Effects of Pyrolysis Conditions on Combustion and Gasification Reactivities of Biomass Chars and the Quality of Their Ash. Considerable efforts are being made to minimise the environmental impacts of fossil fuels by utilising renewable energy sources like biomass. Many of the challenges associated with the thermal conversion of biomass relate to its char characteristics. The aim of this project is to gain a fundamental understanding about the impact of reaction conditions during the pyrolyti ....The Effects of Pyrolysis Conditions on Combustion and Gasification Reactivities of Biomass Chars and the Quality of Their Ash. Considerable efforts are being made to minimise the environmental impacts of fossil fuels by utilising renewable energy sources like biomass. Many of the challenges associated with the thermal conversion of biomass relate to its char characteristics. The aim of this project is to gain a fundamental understanding about the impact of reaction conditions during the pyrolytic stage on the structural and compositional transformations of the resultant char, its combustion and gasification reactivities, and the release of inorganic matter and ash formation. This holistic and integrated approach should reveal the underlying science necessary to support existing and future biomass use.Read moreRead less
Conjugate natural convection boundary layers. Conjugate natural convection systems occur when a conducting vertical wall separates fluids at different temperatures (that is at a window separating the interior of a room from the outside or when a container of fluid is placed in a refrigerator). This project will provide accurate predictions of such flows together with scaling relations.
Enhancing passive cooling using flexible baffles. The project aims to develop a novel passive strategy using fluid-structure-thermal interactions to enhance passive cooling by natural convection and improve the energy efficiency of engineering systems. Comparing to the existing strategies, the new strategy does not require driving fan or pump and is quiet, reliable, self-adaptive and economical. The Multiphysics embodied in the proposal is at the leading edge of the field. Expected outcomes incl ....Enhancing passive cooling using flexible baffles. The project aims to develop a novel passive strategy using fluid-structure-thermal interactions to enhance passive cooling by natural convection and improve the energy efficiency of engineering systems. Comparing to the existing strategies, the new strategy does not require driving fan or pump and is quiet, reliable, self-adaptive and economical. The Multiphysics embodied in the proposal is at the leading edge of the field. Expected outcomes include advanced understanding of the complex Multiphysics and design rules for enhancing passive cooling by natural convection using flexible baffles. The research is expected to bring direct economic benefit to relevant industry and significant environmental and social benefit to the general public.Read moreRead less
Development of a measure for assessment of the dynamic thermal response of buildings. This project will develop a unique measure for assessing the thermal behaviour of walls and buildings with the view to improving the accuracy and effectiveness of efforts being made in energy efficient housing. This should increase confidence for both consumers and manufacturers in the use of new energy efficient building designs.