Journal article

Exhaust CO emissions of a laminar premixed propane-air flame interacting with cold gas jets

Jacob E Rivera, Robert L Gordon, Davy Brouzet, Mohsen Talei

Combustion and Flame | ELSEVIER SCIENCE INC | Published : 2019

Abstract

This study investigates a laminar premixed flame interacting with cold gas jets, at different cooling jet mass flow fractions () and diluent types, namely air and N2. A novel burner and wall configuration is used to experimentally induce flame-cooling-air interaction (FCAI). Flame chemiluminescence imaging, exhaust temperature (Texh) and exhaust CO emissions ([CO]exh) measurements are conducted to characterise the flame shape and [CO]exh response to the cooling jets. Flame imaging reveals that the cooling jets greatly affect the flame shape. Measurements of [CO]exh demonstrate a direct correlation with Texh, as decreasing Texh is observed to occur with decreasing [CO]exh. Additionally, the a..

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Funding Acknowledgements

This research was supported by the University of Melbourne through the Research Training Program Scholarship. The research benefited from the computational resources provided through the Energy & Resources Scheme using the Pawsey Supercomputing Centre, and through the National Computational Merit Allocation Scheme using the Australian NCI National Facility, all supported by the Australian Government. The authors acknowledge the generous support of the European Centre for Research and Advanced Training in Scientific Computing (CERFACS), for providing NTMIX-Chemkin. The authors especially thank Dr. Benedicte Cuenot for her help with NTMIX-Chemkin. The authors are grateful for the help of Dr. Arne Scholtissek, Prof. Dr.-Ing Christian Hasse and Prof. Dr. habil Andreas Dreizler of the Technische Universitat Darmstadt, in applying their heat transfer coefficient formulation to this work.