High-pressure hydrogen/carbon monoxide syngas turbulent burning velocities measured at constant turbulent Reynolds numbers

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Title:	High-pressure hydrogen/carbon monoxide syngas turbulent burning velocities measured at constant turbulent Reynolds numbers
Authors:	施聖洋;Chiu, Chien-Wen;Dong, Yi-Chih;Shy, Shenqyang Steven
Contributors:	工學院機械工程學系
Keywords:	Alternative fuels. Production and utilization;Applied sciences;Energy;Exact sciences and technology;Fuels;High-pressure lean premixed turbulent combustion;Hydrogen;Hydrogen/carbon monoxide syngas combustion;Turbulent burning velocities;Turbulent Damk�hler number;Turbulent Reynolds number
Date:	2012-07-01
Issue Date:	2026-04-23 15:13:41 (UTC+8)
Publisher:	Elsevier Ltd.;Kidlington: Elsevier Ltd
Abstract:	摘要： Using a double-chamber explosion facility, we measure high-pressure turbulent burning velocities (ST) of lean syngas (35%H2/65%CO) spherical flames at constant turbulent Reynolds numbers (ReT ≡ u′LI/ν) varying from 6700 to 14,200, where the root-mean-square turbulent fluctuation velocity (u′) and the integral length scale (LI) are adjusted in proportion to the decreasing kinematic viscosity of reactants (ν) at elevated pressure (p) up to 1.2 MPa. Results show that, contrary to popular scenario for turbulent flames, at constant ReT, ST decreases similarly as laminar burning velocities (SL) with increasing p in minus exponential manners. Moreover, at constant p, ST/SL increases noticeably with increasing ReT. It is found that the present very scattering ST/SL data at different p and ReT can be nicely merged onto a relation of ST/u′ = 0.49Da0.25, where Da is the turbulent Damköhler number and values of ST/u′ tends to level-off when Da > 160 and p > 0.7 MPa. ► An explosion facility for high-pressure syngas combustion is proposed. ► High-pressure syngas burning velocities at fixed Reynolds numbers are measured. ► General correlations of syngas turbulent burning velocities are proposed. 出版者： Kidlington: Elsevier Ltd 出版日期： 2012-07-01 出處： International journal of hydrogen energy, 2012-07, Vol.37 (14), p.10935-10946 資源來源： Elsevier ScienceDirect Journals Complete - Autoholdings 版權： 2012 Hydrogen Energy Publications, LLC. 版權： 2014 INIST-CNRS 識別號： ISSN: 0360-3199 識別號： EISSN: 1879-3487 識別號： DOI: 10.1016/j.ijhydene.2012.04.023 識別號： CODEN: IJHEDX
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