Publication:
Time-resolved, single-ended laser absorption thermometry and H 2 O, CO 2 , and CO speciation in a H 2 /C 2 H 4 -fueled rotating detonation engine

dc.contributor.authorCassady, Séan J.
dc.contributor.authorPeng, Wen Yu
dc.contributor.authorStrand, Christopher L.
dc.contributor.authorDausen, David F.
dc.contributor.authorCodoni, Joshua R.
dc.contributor.authorBrophy, Christopher M.
dc.contributor.authorHanson, Ronald K.
dc.contributor.corporateNaval Postgraduate School (U.S.)
dc.contributor.departmentMechanical and Aerospace Engineering (MAE)en_US
dc.date.accessioned2021-10-15T22:01:40Z
dc.date.available2021-10-15T22:01:40Z
dc.date.issued2021
dc.descriptionThe article of record as published may be found at http://dx.doi.org/10.1016/j.proci.2020.06.125en_US
dc.descriptionProceedings of the Combustion Institute 38en_us
dc.description.abstractRotating detonation engines (RDEs) require novel diagnostic tools to better understand complex detonation behavior and improve performance. To this end, a single-ended laser absorption sensor for in situ , time-resolved measurements of temperature, H 2 O, CO 2 , and CO concentrations has been developed and deployed within the annulus of a hydrogen/ethylene/air-fed RDE. With a measurement rate of 44 kS/s, the sensor delivers four co-aligned, mid-infrared laser beams into the annular detonation chamber and captures the back-reflected radiation through a single optical port. A ray-tracing optimization algorithm, designed to maximize signal-to-noise ratio and beam-perturbation tolerance, was used to determine the optimal sensor optical configuration. Wavelength-modulation spectroscopy (WMS) further compensated for interference sources in the harsh detonation environment. Time-resolved and time-averaged sensor measurements of gas temperature and species at equivalence ratios of 0.74, 0.87, and 1.03 are presented.en_US
dc.description.funderN00014-15-P-1121en_US
dc.description.sponsorshipOffice of Naval Researchen_US
dc.description.sponsorshipInnovative Scientific Solution, Inc.en_US
dc.description.sponsorshipDepartment of Defense through the National Defense Science and Engineering Graduate (NDSEG)en_US
dc.format.extent9 p.en_US
dc.identifier.citationCassady, Séan J., et al. "Time-resolved, single-ended laser absorption thermometry and H2O, CO2, and CO speciation in a H2/C2H4-fueled rotating detonation engine." Proceedings of the Combustion Institute 38.1 (2020): 1719-1727.
dc.identifier.urihttps://hdl.handle.net/10945/68009
dc.publisherElsevieren_US
dc.rightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.en_US
dc.subject.authorLaser absorption spectroscopyen_US
dc.subject.authorRotating detonation engineen_US
dc.subject.authorWavelength modulation spectroscopyen_US
dc.titleTime-resolved, single-ended laser absorption thermometry and H 2 O, CO 2 , and CO speciation in a H 2 /C 2 H 4 -fueled rotating detonation engineen_US
dc.typeConference Paperen_US
dspace.entity.typePublication
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