An Integrated Thermo-fluid, Chemical Kinetic Model for Pulse Combustors

Heravi, H. M.; Bowen, Philip John; Dawson, James; Syred, N.

doi:10.2514/6.2004-802

Cited by 1 publication

(1 citation statement)

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“…The concentrations of NO x emissions in all experiments did not exceed 30 ppm, which conforms with the literature findings concerning the NO x formation in pulsed combustion. 18,45 When comparing the three tailpipes, the changes in NO x emissions depend on factors that influence the exhaust gas temperature.…”

Section: The Effect Of Combustor Dimensions On No X Emissionsmentioning

confidence: 99%

An experimental study of NO_x emissions from a Helmholtz resonator

Ibrahim

Taha

Elqammash

2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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A detailed experimental investigation of NOx emissions was conducted in order to get more precise combustion data for a Helmholtz resonator valveless pulse combustor. A laboratory-scale model of the combustor was designed and operated with a non-premixed input of air and propane. The effects of fuel flow rate, temperature, and pressure amplitude on NOx emissions through a variety of experimental tests were studied. The tests were carried out for three tailpipe lengths, two inlet pipe lengths, and two combustion chamber volumes. The results revealed that the variations in operational and design parameters have a significant impact on NOx emissions. NOx emissions reach a maximum value near the stoichiometric condition as temperature and pressure, which are related to the fuel flow rate, reach their maximum values. Experiments show inverse relationships between CO and NOx emissions. Furthermore, the findings show that NOx reduction increases with increasing tailpipe and inlet pipe lengths, as well as small volume combustion chambers.

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Section: The Effect Of Combustor Dimensions On No X Emissionsmentioning

confidence: 99%