University of Cardiff
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Element maps from 5x 10 cm sections generated using the Zeiss Sigma HD Field Emission Gun Analytical SEM at Cardiff University. Maps come from sections within the early Miocene pelagic interval situated directly below the Nicobar Fan succession at IODP Site U1480 in the Eastern Equatorial Indian Ocean (for more information see published report, https://doi.org/10.1016/j.epsl.2017.07.019). These specific sections were chosen to examine the depositional environments associated with transitions from red clays to white chalk, which demonstrate distinct banding at the micro and macro scale.
This poster on the UKCCSRC Call 1 project Oxyfuel and exhaust gas recirculation processes in gas turbine combustion for improved carbon capture performance was presented at the CSLF Call project poster reception, London, 27.06.16. Grant number: UKCCSRC-C1-26. This research is concerned with oxyfuel combustion in gas turbine applications, in particular concentrating on the use of modern swirl-stabilised burners. Oxyfuel is considered a particularly challenging idea, since the resultant burning velocity and flame temperatures will be significantly higher than what might be deemed as a practical or workable technology. For this reason it is widely accepted that EGR-derived CO2 will be used as a diluent and moderator for the reaction (in essence replacing the role of atmospheric nitrogen). The key challenges in developing oxyfuel gas turbine technology are therefore: • Flame stability at high temperatures and burning rates. • The use of CO2 as a combustion diluent. • Potential for CO emission into the capture plant. • Wide or variable operating envelopes across diluent concentrations. • Differences in the properties of N2 and CO2 giving rise to previously unmeasured flame heat release locations.
Pictures of sulphides and trace element concentrations from ore minerals in the El Teniente porphyry Cu-Mo deposit, Chile. Samples were picked for analysis from the Natural History Museum London’s ore collection. This data contains petrological photographs and trace element concentration of ore minerals. This data was collected as part of the TeaSe consortium NERC grant in order to determine the concentration and hosting of critical and precious metals in various types of ore deposits and barren rocks from different geological environments. This data was collected and interpreted by researchers at Cardiff University.
Geochemical and field data collected from samples from ore deposits hosted in the Troodos ophiolite, Cyprus by Dr Andrew Martin during his PhD. File T1 contains sample names, locations and description and file T2 contains photographs and field observations for sample localities. File T3 contains portable x-ray fluorescence (XRF) data from powdered Troodos ophiolite samples. Files T4 - T8 contain sulphide trace element data from laser-ablation inductively-coupled-plasma mass-spectrometry (LA-ICP-MS) analysis of samples from various deposits in the Troodos ophiotlite. Files T9 and T10 contain bulk sample geochemistry from aqua regia digest and ICP-MS for deposits from the Troodos ophiolite. File T11 contains results from conventional ä34S analysis of sulfide minerals from Troodos deposits and file T12 contains x-ray diffraction analysis data from silica-rich deposits in the Troodos ophiolite. Data is used in papers available at https://doi.org/10.1016/j.oregeorev.2019.01.024, https://doi.org/10.1180/mgm.2018.81 and https://doi.org/10.1016/j.chemgeo.2019.119325 and in Dr Andrew Martin's PhD thesis, available at http://orca.cf.ac.uk/124346/.
Conventional power generation in the UK faces a significant challenge in the face of decarbonising and maintaining a reliable, secure and cost effective electricity supply. The requirement for fossil-fuel based systems to integrate smoothly with CCS technologies has led to the realistic consideration of oxyfuel based generating plant for CCGT-CCS processes. For CCS to become more technically and economically feasible, it has been suggested that the CO2 scrubbing component of the CCS process will work more effectively if the CO2 concentrations in the exhaust gas were higher. Hence, enhancement of oxygen in the combustion process and the enhancement of CO2 concentration in the plant exhaust via Exhaust Gas Recycling (EGR) can dramatically increase the net efficiency of CO2 scrubbers. Whilst oxyfuel and EGR are known to be potentially very promising technologies for integration with CCGT-CCS processes, there exists a significant lack of fundamental data on the design and reliable operation of industrial burner systems with this technology. Grant number: UKCCSRC-C1-26.
This presentation on the UKCCSRC Call 1 project, Oxyfuel and EGR Processes in GT Combustion, was presented at the GasCCS, 25.06.14. Grant number: UKCCSRC-C1-26.
This presentation on the UKCCSRC Call 1 project, Oxyfuel and EGR Processes in GT Combustion, was presented at the Cardiff Biannual, 11.09.15. Grant number: UKCCSRC-C1-26.
Pressurised Large Scale Generic Burner Tests With Oxygen, Air And Carbon Dioxide. Excel File. Testing Undertaken August 2014. Data Used Is Detailed In Report: Oxyfuel And Exhaust Gas Recirculation Processes In Gas Turbine Combustion For Improved Carbon Capture Performance. Final Report Including Combustion Testing Results. Grant number: UKCCSRC-C1-26.
This is a blog (Update, 01.11.13) on the UKCCSRC Call 1 project, Oxyfuel and EGR Processes in GT Combustion. Grant number: UKCCSRC-C1-26.
This is a blog (Final, 01.08.14) on the UKCCSRC Call 1 project, Oxyfuel and EGR Processes in GT Combustion. Grant number: UKCCSRC-C1-26.