High efficiency multifuel combustor with potential for commercial and military applications [AMTEC]

IECEC-97 Proceedings of the Thirty-Second Intersociety Energy Conversion Engineering Conference (Cat. No.97CH6203) Pub Date : 1997-12-31 DOI:10.1109/IECEC.1997.661897

R. Mital, R. Sievers

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Abstract

The conceptual design of a novel, outward-flowing, cylindrical laminar flame multifuel combustor, expected to produce ultrahigh temperature uniformity and low pollutant emissions, is presented. A stretched laminar tubular flame was established by injecting a lean gaseous fuel air mixture uniformly in the radial direction from a central porous tube into an annular combustion space formed by an outer tube. Measurements of concentrations of major gaseous species using sampling and chromatography and temperature using thermocouples and an infrared pyrometer revealed that all scalar properties are independent of distance along the tube in this novel burner. Multi-fuel capability including military logistics fuels will make the present burner even more desirable. A modification that will keep the system self sufficient and will not require the use of pressurized or ultrasonic atomizers for liquid fuel combustion is presented. The design of a power system that integrates this novel burner and counterflow recuperator with alkali metal thermoelectric converter (AMTEC) cells to produce 200 W of power with overall efficiencies between 14% and 18% is also conceptually demonstrated.

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具有商业和军事应用潜力的高效多燃料燃烧器[AMTEC]

介绍了一种新型的、向外流动的圆柱形层流火焰多燃料燃烧室的概念设计，该燃烧室有望产生超高温均匀性和低污染物排放。将稀薄的气体-燃料-空气混合物从中心多孔管沿径向均匀注入由外管形成的环形燃烧空间，建立了拉伸层流管火焰。使用取样和色谱法测量主要气体的浓度，使用热电偶和红外高温计测量温度，结果表明，在这种新型燃烧器中，所有标量特性都与沿管的距离无关。包括军事后勤燃料在内的多燃料能力将使目前的燃烧器更加可取。提出了一种改进方法，使系统能够自给自足，并且不需要使用加压或超声波雾化器进行液体燃料燃烧。电力系统的设计将这种新型燃烧器和逆流回热器与碱金属热电转换器(AMTEC)电池集成在一起，产生200w的功率，总效率在14%到18%之间。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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IECEC-97 Proceedings of the Thirty-Second Intersociety Energy Conversion Engineering Conference (Cat. No.97CH6203)

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