Boiler Operational Tuning and Optimization
Optimizing combustion in the boiler is an effective way to get the most out of it. Jansen has tuned hundreds of boilers burning biomass, black liquor, municipal solid waste (MSW) and refuse derived fuel (RDF), tire derived fuel (TDF), and fossil fuels such as natural gas and fuel oil. Working with your operators through stepwise adjustments and monitoring, fuel burnout can be improved and carryover reduced, emissions lowered, and thermal efficiency increased.
Scope of work for Operational Tuning of Biomass other Solid Fuel Boilers may include:
- Review and adjustment of fuel delivery parameters like fuel screw speed biases, grate speed or shale and dwell time settings, air supply pressures, fuel distributors, etc.
- Review and adjustment of the air delivery parameters like overall air flow, air flow splits to the various levels, and settings of air delivery at individual air levels etc.
Scope of work for Operational Tuning of Chemical Recovery Boilers may include:
- Review and adjustment of liquor delivery parameters like gun size, type, and orientation.
- Liquor supply temperature and pressure (flashing vs. non-flashing operation) etc.
- Review and adjustment of the air delivery parameters like overall air flow, air flow splits to the primary air (PA), secondary air (SA), tertiary air level (TA), and Quaternary Air (QA) level, and settings of air delivery at individual air levels etc.
Scope of work for Operational Tuning of Boiler Firing Liquid or Gaseous Fuel in Burners may include:
- Review and adjustment of fuel delivery parameters like fuel supply pressure, gun type, flame shape and stability etc.
- Review and adjustment of the air delivery parameters such as overall air flow, air flow splits to the primary air (PA), secondary air (SA), and settings of air delivery at individual air levels within the burner windbox etc.
For any type of boiler being tuned, rugged calibrated instruments are used to measure key flue gas components such oxygen (O2) and carbon monoxide (CO), and pressures in the air systems. These measurements provide the current baseline of boiler performance, and guide the tuning efforts directed towards improving operation.
Aside from improving the current boiler performance, operational tuning can help in identifying other improvements that may be considered to further improve the performance of the steam and power generation system as a whole and be a driver of overall mill productivity.