Parametric Evaluation of ClearSign's Ultra-Low Emissions Duplex Technology

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Title Parametric Evaluation of ClearSign's Ultra-Low Emissions Duplex Technology
Creator Karkow, D.
Contributor Dansie, J., Iyer, V., Dumas, J., Kendrick, D., Tonouchi, J., Hinkey, J.
Date 2018-09-18
Description Paper from the AFRC 2018 conference titled Parametric Evaluation of ClearSign's Ultra-Low Emissions Duplex Technology
Abstract ClearSign's DuplexTM technology is a revolutionary gaseous fuel combustion technology that reduces NOx emissions to sub-6 ppm levels over a wide range of refinery process conditions. Duplex utilizes premixed combustion within porous ceramic tiles to provide ultra-low emissions, high power densities, wide operating envelopes, and reduced flame lengths. The work described here is part of a larger effort to fully characterize, refine, and commercialize the Duplex technology. The paper reviews experimental testing and analytical modeling efforts to quantify the key performance parameters for Duplex. The parametric study involved examining the effects of a subset of Duplex design parameters - Duplex height, burner geometry, fuel injection scheme, and tile characteristics - on performance, operability ranges, and stability at varying operating conditions of fuel composition, firing rate, and excess air. Furnace temperature measurements allowed evaluation of temperature profiles in the furnace during Duplex operation. In addition, a chemical reactor network model to simulate combustion and heat transfer in ClearSign's test furnace was developed and validated. The model predicted trends in CO and NOx emissions and showed good agreement with test data for the parametric variations of interest.
Type Event
Format application/pdf
Rights No copyright issues exist
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Metadata Cataloger Catrina Wilson
ARK ark:/87278/s6sv20v7
Setname uu_afrc
Date Created 2018-12-12
Date Modified 2021-05-06
ID 1389185
Reference URL