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首页> 外文会议>ASME(American Society of Mechanical Engineers)/JSME Pressure Vessels and Piping Conference: Computational Technologies for Fluid/Thermal/Structural/Chemical Systems with Industrial Applications v.2; 20040725-20040729; San Diego,CA; US >CFD MODELING OF COMBUSTION-GENERATED NO_X IN A UTILITY FURNACE FIRING HEAVY RESIDUAL FUEL OIL
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CFD MODELING OF COMBUSTION-GENERATED NO_X IN A UTILITY FURNACE FIRING HEAVY RESIDUAL FUEL OIL

机译：大型残油燃料的多用途燃烧炉中燃烧产生的NO_X的CFD建模

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摘要

Modeling a utility furnace firing heavy residual fuel oil is challenging due to the complex process associated with oil combustion, including droplet spray patterns, droplet heat up and vaporization, gas phase combustion of vaporized oil, enhanced radiative heat transfer due to potentially high soot levels, cenosphere formation and destruction, and NO_x chemistry. This paper describes an oil combustion model developed at Reaction Engineering International (REI). The oil combustion model, taking oil spray characterization measurements as inputs, focuses on the aerodynamics and combustion characteristics of oil droplets and NO_x chemistry. High soot levels generated from oil flames have been considered for radiative heat transfer. Cenosphere formation and destruction are not modeled since the combustion field, heat release, and NO_x chemistry are not significantly influenced by these phenomena. The code has been applied to a 600 MW oil-fired utility boiler and some of modeling results are presented in this paper.
机译：由于与燃油燃烧相关的复杂过程（包括油滴喷雾模式，油滴加热和汽化，汽化油的气相燃烧，由于潜在的高烟灰水平而增强的辐射传热），为重残渣燃料油进行燃烧的多用途炉的建模具有挑战性，洋气圈的形成和破坏，以及NO_x化学。本文介绍了国际反应工程（REI）开发的燃油燃烧模型。以燃油喷雾特性测量为输入的燃油燃烧模型着重于油滴的空气动力学和燃烧特性以及NO_x化学物质。已经考虑到由油火焰产生的高烟灰水平用于辐射热传递。由于燃烧场，热量释放和NO_x化学性质不受这些现象的显着影响，因此未对圈层的形成和破坏进行建模。该规范已应用于600 MW的燃油多用途锅炉，并在本文中给出了一些建模结果。

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