Teitl: Lean methane flame stability in a premixed generic swirl burner, Part II: Detailed analysis at elevated temperature and pressure combustion conditions

Dyfyniad
Runyon JP, Marsh R, Bowen PJ, et al. (2017). Lean methane flame stability in a premixed generic swirl burner, Part II: Detailed analysis at elevated temperature and pressure combustion conditions. Cardiff University. https://doi.org/10.17035/d.2017.0031562548

Manylion y Set Ddata

Cyhoeddwr: Cardiff University

Dyddiad (y flwyddyn) pryd y daeth y data ar gael i'r cyhoedd: 2017

Fformat y data: .xls, .xlsx, .tdms, .image

Meddalwedd ofynnol: Dantec DynamicStudio (.image)
TDM Excel Add-In for Microsoft Excel (.tdms)

Amcangyfrif o gyfanswm maint storio'r set ddata: Llai nag 1 terabeit

Nifer y ffeiliau yn y set ddata: 10000

DOI : 10.17035/d.2017.0031562548

DOI URL: http://doi.org/10.17035/d.2017.0031562548

Related URL: http://gow.epsrc.ac.uk/NGBOViewGrant.aspx?GrantRef=EP/K021095/1

Disgrifiad

Lean premixed gas turbine combustors are known to be susceptible to high pressure combustion instabilities and flame blowoff due to variations in chemical and flow timescales. However, analytical methods enabling analysis of these phenomena are lacking experimental validation at elevated operating conditions relevant to gas turbine operation. In this study, combustion stability and the onset of flame blowoff in particular, are characterized in a new high-pressure swirl burner operated with fully premixed methane (CH4) and air at thermal powers from 42 kW to 110kW, combustor inlet pressures from 0.1 to 0.2 MPa, and combustor inlet temperatures from 285 K to 584 K. In addition to detailed combustion characterization of the rig acoustic response through real-time dynamic pressure measurements, a combination of optical combustion diagnostics, including OH* chemiluminescence and OH planar laser induced fluorescence (PLIF), give indication of the changes in flame heat release and flame anchoring location related to the onset and occurrence of blowoff. Chemical kinetic modelling is used in support of the empirical studies. This dataset includes single value measurements of the high-pressure combustion rig operating conditions (temperature (°C), pressure (bara), mass flow (g/s), and pressure drops (mbar)) during each test point of the referenced experimental programme. The data also includes chemiluminescence images, planar laser induced fluorescence images, dynamic pressure measurements, and full experimental rig data acquisition logs. The raw chemiluminescence and PLIF images files are captured through Dantec's DynamicStudio software (IMAGE files) and the dynamic pressure measurements are captured through National Instrument's SignalExpress (TDMS files). Combustion exhaust gas analysis measurements and chemical kinetics modelling outputs (using CHEMKIN PRO software) are also provided. Single value rig logs, real-time rig data acquisition logs, combustion exhaust gas analysis, and chemical kinetics modeling outputs are provided in Microsoft Excel (XLS/XLSX) format.

This experimental programme is Part 2 of a 2-part research output. Part 2 includes some duplicate datasets from Part 1 (http://doi.org/10.17035/d.2017.0011500240) in addition to elevated temperature and pressure combustion characterization data. The combustion experimental programme was undertaken at Cardiff University’s Gas Turbine Research Centre (GTRC) in support of Work Package 2 - Combustion, Fuels, and Operability, particularly Task 2A - Gaseous Mixtures, of the EPSRC Flexible and Efficient Power Plant: Flex-E-Plant project (EP/K021095/1).