This week, the IFRF publishes a further report relating to the High Efficiency Combustion Project.
EXPERIMENTAL RESULTS OF THE HEC-EEC FURNACE AND BURNERS FIRING NATURAL GAS
Stanley Santos, Jonas Brobäck Adolfi, Connie Ellul, Ferry Frinking and Peter Hoppesteyn
The HEC project examines in detail the combustion and heat transfer characteristics of flames produced with high combustion air preheat when operating in the flameless and conventional flame modes. Data has been collected from Natural Gas and Coke Oven Gas fuels, as well as from isothermal (cold air) models of the same firing systems.
In report F108/y/2, measurement data is presented in tabular and graphical form for the HEC Burner system firing on Natural Gas at several different throughputs. Input and output conditions are recorded, as well as total and radiative heat flux to the (water cooled) furnace loads. For many input conditions, the report contains detailed data on in-flame temperatures and gas compositions throughout the furnace volume (including CO and NOx).
The HEC tests were undertaken with a compact reversing regenerative burner. Issues associated with measuring in-flame data using instrumentation with a response time or time lag similar to the reversing time have been addressed and examples of data processing to address this issue are presented in the report.
Detailed in-flame data are presented in tabular form as appendices which may be downloaded from the IFRF web pages as separate files. It is anticipated that these data will be of particular use to IFRF Members wishing to validate mathematical models of flameless combustion. Future reports will add a further data set for Coke Oven Gas fuel, as well as an example of the application of CFD to the natural gas results.
Report can be accessed by following the link below: