0011-4561 Impact of the air nozzles design on the carbon monoxide emission during operation of the biomass boiler Impact of the air nozzles design on the carbon monoxide emission during operation of the biomass boiler Szubel Mateusz author AGH University of Science and Technology, Faculty of Energy and Fuels Correspondence to: Mateusz Szubel 09 12 2016 Budownictwo Zeszyt 1-B (6) 2016 2016 131 137 Copyright © 2016 2016 <p style="text-align: justify;"> The aim of the research was to evaluate possibility to reduce the emission of the carbon monoxide (CO) in the biomass boiler, by application of a newly-designed secondary air supply system. The approach implied the practical tests of the real biomass boiler installation and numerical analyses of chosen optimizing solutions of the secondary air distribution system. Promising modifications have been implemented in the current design and tested. Results of the numerical and experimental studies have been compared and discussed.</p>