Geological sequestration of carbon dioxide in deep saline aquifers: coupled flow-mechanical considerations. Deep saline aquifers have been routinely proposed as sites for long-term, large-scale storage of carbon dioxide (CO2) emissions, as an option to assist the abatement of global warming. This project investigates expected engineering behaviour of deep saline aquifer reservoirs and their stability following CO2 sequestration.
Structural modelling of silicon carbide-derived microporous carbon and its application in carbon dioxide capture from moist gases. The project will deliver a powerful new tool for determining the nanostructure of carbons, and will advance the modelling of fluid equilibrium, accessibility and transport within this structure. The outcomes will be crucial to the development of emerging technologies in nanofluidics, gas and electrochemical energy storage, and gas separation.
Membrane Systems for CO2 Capture and Conversion Using Multi-Enzyme Cascades. Carbon capture and storage (CCS) is one of the defining technological challenges in today's industry and society. Primary sources of carbon dioxide (CO2) are due to energy generation using fossil fuels as well as key manufacturing activities such cement production and steel making. This project aims to focus on novel approaches to enzyme mediated membrane contactor systems to create robust, high efficiency CO2 capture f ....Membrane Systems for CO2 Capture and Conversion Using Multi-Enzyme Cascades. Carbon capture and storage (CCS) is one of the defining technological challenges in today's industry and society. Primary sources of carbon dioxide (CO2) are due to energy generation using fossil fuels as well as key manufacturing activities such cement production and steel making. This project aims to focus on novel approaches to enzyme mediated membrane contactor systems to create robust, high efficiency CO2 capture from post-combustion and other gas emissions and conversion into useful chemical feedstock. Enzyme immobilisation and stabilisation are expected to be enhanced using functionalised nanoparticles and nanostructured membranes.Read moreRead less
Managing Hydrate Formation for Viable CO2 and Energy Transport. Increasing the allowable water content during the pipeline transportation of carbon dioxide (CO2) would greatly increase the viability of carbon capture and storage but would also increase the risk of CO2-hydrate blockages. Subsea methane (CH4) hydrate sediments represent a tremendous new energy resource if blockages in production pipelines can be avoided. Conventional oil industry approaches to hydrate avoidance are of limited rele ....Managing Hydrate Formation for Viable CO2 and Energy Transport. Increasing the allowable water content during the pipeline transportation of carbon dioxide (CO2) would greatly increase the viability of carbon capture and storage but would also increase the risk of CO2-hydrate blockages. Subsea methane (CH4) hydrate sediments represent a tremendous new energy resource if blockages in production pipelines can be avoided. Conventional oil industry approaches to hydrate avoidance are of limited relevance and too expensive for these new applications. Formation probability distributions, cohesive forces and agglomeration tendencies of CO2 and CH4 hydrates are intended to be measured and integrated into predictive multi-phase flow models, enabling quantitative risk assessments of blockages in CO2 transport or hydrate production pipelines.Read moreRead less
Improved models of nanoporous carbons for greater fundamental insight and better sustainable technology. Storage of hydrogen and energy from intermittent sources like solar and wind, and 'carbon capture' from coal-fired power stations are essential requirements for a sustainable future. A state-of-the-art computer model will be developed and demonstrated to help deliver these and other technologies for a safe and sustainable future.
The colour of turbulence and the attached eddy hypothesis. This project aims to progress understanding of wall-bounded turbulence. These turbulent fluid flows are ubiquitous in nature and in engineering systems, directly affecting dispersion in the atmosphere and the energy consumption of land, sea and air vehicles. The understanding of these turbulent flows has been limited by a lack of verified theoretical models for the structure of wall turbulence. By combining unprecedented experiments with ....The colour of turbulence and the attached eddy hypothesis. This project aims to progress understanding of wall-bounded turbulence. These turbulent fluid flows are ubiquitous in nature and in engineering systems, directly affecting dispersion in the atmosphere and the energy consumption of land, sea and air vehicles. The understanding of these turbulent flows has been limited by a lack of verified theoretical models for the structure of wall turbulence. By combining unprecedented experiments with a novel dynamical systems approach, this project will enable development of effective turbulence control strategies, enhancing productivity in a wide range of applications. The findings of the research will enable models with predictive capability to design turbulence control schemes.Read moreRead less
Controlling nickel-base alloy high temperature corrosion in CO2-rich gases. Coal provides cheap energy for Australia but emits carbon dioxide (CO2) in large quantities. The solution is to improve the efficiency of coal fired power plants and use CO2 capture technology. This is feasible by raising steam temperatures and using oxyfuel process where coal is burnt in oxygen rather than in air. Thus the hot combustion gas is very rich in CO2 plus water vapour, which is however very corrosive at high ....Controlling nickel-base alloy high temperature corrosion in CO2-rich gases. Coal provides cheap energy for Australia but emits carbon dioxide (CO2) in large quantities. The solution is to improve the efficiency of coal fired power plants and use CO2 capture technology. This is feasible by raising steam temperatures and using oxyfuel process where coal is burnt in oxygen rather than in air. Thus the hot combustion gas is very rich in CO2 plus water vapour, which is however very corrosive at high temperatures. Traditional steels are inadequate. Instead, nickel-base alloys are needed. This project aims to investigate the corrosion behaviour of nickel base alloys in carbon dioxide - water atmospheres, and ways of preventing this corrosion by controlling gas composition and appropriate alloying, which is essential for next generation power plant design.Read moreRead less
Consumer preferences for voluntary carbon mitigation in the aviation sector. The demand for aviation is rapidly adding to carbon emissions. Little is known about consumer preferences for aviation carbon offsets and how they evolve over time. This hinders the expansion of voluntary schemes at a crucial period in history. This research will investigate consumers offset preferences and their willingness to pay for aviation carbon mitigation using a novel time series methodology. The project aims to ....Consumer preferences for voluntary carbon mitigation in the aviation sector. The demand for aviation is rapidly adding to carbon emissions. Little is known about consumer preferences for aviation carbon offsets and how they evolve over time. This hinders the expansion of voluntary schemes at a crucial period in history. This research will investigate consumers offset preferences and their willingness to pay for aviation carbon mitigation using a novel time series methodology. The project aims to inform government policies and to help industry to develop carbon offset programs which are more likely to be supported by consumers, thus helping to reduce carbon emissions in the long term. It also aims to profile carbon offsetting groups to support communication activities to increase the size and value of offsets.Read moreRead less
Temperature sensitivity of soil respiration and its components. This project aims to demonstrate how temperate evergreen forests could buffer against climate change. Soil respiration returns around half the carbon taken up by forests to the atmosphere. This project will characterise and quantify how microbes and roots in soils depend on temperature and substrate supply, and so predict how rising temperatures and drought will affect forests as natural carbon sequestration sinks. This project will ....Temperature sensitivity of soil respiration and its components. This project aims to demonstrate how temperate evergreen forests could buffer against climate change. Soil respiration returns around half the carbon taken up by forests to the atmosphere. This project will characterise and quantify how microbes and roots in soils depend on temperature and substrate supply, and so predict how rising temperatures and drought will affect forests as natural carbon sequestration sinks. This project will resolve the roles of environmental drivers of soil respiration across forests; integrate mechanistic understanding of differing plant and microbial responses to temperature within a common modelling framework; and evaluate the implications of this knowledge in predictions of climatic impacts on terrestrial carbon cycling.Read moreRead less
Role of oxide grain boundaries in controlling high temperature corrosion of steels by carbon dioxide-rich gases. Advanced coal combustion technologies make carbon dioxide capture possible, but require improved materials to handle hot carbon dioxide-rich gases. These gases are surprisingly corrosive and the corrosion process is not fully understood. This project aims to achieve this understanding and to provide the basis for future alloy design.