Influence of Emissions Normalisation Methods on H₂-CH₄ Fuel Comparisons in Generic and NO_x-Abated Gas Turbine Combustion - SUPPLEMENTAL DATA

<p dir="ltr">This dataset includes the supplemental data for the research paper entitled: “<i>Influence of Emissions Normalisation Methods on H</i>_<em>2</em><i>-CH</i>_<em>4</em><i> Fuel Comparisons in Generic and NO</i>_<em>x</em><i>-Abated Gas Turbine Combustion”.</i></p><p dir="ltr">Parametric experiments were performed using CH₄-H₂ blends to fuel a model gas turbine combustor at elevated inlet conditions. This was done unabated for the first dataset, and a second time whilst employing exhaust gas recirculation (EGR) as a NO_x-abatement technique. The net heat input (thermal power) and pressure conditions at which data were collected are detailed in the supplemental data files.</p><p dir="ltr">Experiments with steam injection were also carried out as part of this experimental campaign, and are included, but these did not feature in the published paper.</p><p dir="ltr">The purpose of the experimental campaign was to quantify emissions at different conditions, and assess the performance of conventional dry, 15% O₂ NO_x correction (ISO) against an alternative mass by heat input (MBHI) normalisation to experimentally verify simulated work from the literature, while expanding on this work to cover NO_x-abated combustion.</p><p dir="ltr">Emissions data were captured downstream of the combustor exit using a 9-hole equal-area probe. NO_x concentrations were measured via a Signal 4000VM heated vacuum chemiluminescence analyser. Separate sample gas was cooled using a chiller system to approximately 2°C after which CO, CO₂, and O₂ measurements were performed using a Signal 9000MGA.</p><p dir="ltr">Modelling to determine cycle efficiencies was conducted via AspenPlus V12, and equilibrium calculations were carried out using a combination of ANSYS Chemkin and Gaseq.</p><p dir="ltr">Please see the included readme file for guidance on the content of the different spreadsheets.</p>