Title:
Real-Life Performance of Automatically Stoked Biomass Boilers - Validation of a Standard Load-Cycle Test Method Through Round Robin
Author(s):
Feldmeier, S., Schön, C., Hartmann, H., Schwarz, M., Roßmann, P.
Document(s):
Paper
Slide presentation
Abstract:
Automatically stoked biomass boilers are currently only tested at constant nominal and partial load conditions, following EN 303-5. This method does not consider the ignition phase, load changes or burnout phases which may considerably contribute to emissions and reduce the boiler efficiency. To overcome this lack of relevance for real life operation, a standardized load cycle test method was developed and it was validated through an international round robin involving six test laboratories and using two different pellet boilers. The results show that the newly developed load cycle test method is as reproducible as the existing constant load method, provided that the general conditions for the test setup and procedure are compiled with and the measurement technology meets the required accuracy. As expected, the efficiency was lower during the load cycle test method compared to constant load conditions. Moreover, CO, OGC and TPM emissions increased if all combustion phases were considered. The validation of the novel load cycle test method showed that it can be recommended for the determination of real-life emission and efficiencies of automatically stoked pellet boilers in practice.
Keywords:
biomass boiler, pellet combustion emissions, real-life emission
Topic:
Biomass Conversion for Bioenergy
Subtopic:
Advanced biomass combustion
Event:
30th European Biomass Conference and Exhibition
Session:
4AO.2.1
Pages:
539 - 543
ISBN:
978-88-89407-22-6
Paper DOI:
10.5071/30thEUBCE2022-4AO.2.1
Price:
FREE
