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首页> 外文期刊>Thermal science >Design and working performance study of a novel micro parallel plate combustor with two nozzles for micro thermophotovotaic system
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Design and working performance study of a novel micro parallel plate combustor with two nozzles for micro thermophotovotaic system

机译：新型微型平行板燃烧器的设计及工作性能研究，该燃烧器具有两个喷嘴，用于微型热光电系统

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摘要

Micro-combustors are a key component in combustion-driven micro power generators, and their performance is significantly affected by their structure. For the application of micro-thermophotovoltaic (MTPV) system, a high and uniform temperature distribution along the walls of the micro combustor is desired. In this paper, a three-dimensional numerical simulation has been conducted on a new-designed parallel plate micro combustor with two nozzles. The flow field and the combustion process in the micro combustor, and the temperature distribution on the wall as well as the combustion efficiency were obtained. The effects of various parameters such as the inlet angle and the fuel volumetric flow rate on the performance of the micro combustor were studied. It was observed that a swirl formed in the center of the combustor and the radius of the swirl increased with the increase of the inlet rate, and the best working condition was achieved at the inlet angle θ=20°. The results indicated that the two-nozzle combustion chamber had a higher and more uniform mean temperature than the conventional combustor under the same condition.
机译：微型燃烧器是燃烧驱动的微型发电机的关键组件，其性能受其结构的影响很大。对于微热光伏（MTPV）系统的应用，期望沿着微燃烧器的壁的高且均匀的温度分布。在本文中，对新型设计的带有两个喷嘴的平行板微燃烧器进行了三维数值模拟。获得了微型燃烧室中的流场和燃烧过程，以及壁上的温度分布以及燃烧效率。研究了进气角度和燃料体积流量等各种参数对微型燃烧器性能的影响。观察到，随着进气速率的增加，在燃烧器的中心形成的涡流和涡流的半径增大，并且在进气角θ= 20°时达到了最佳工作条件。结果表明，在相同条件下，双喷嘴燃烧室的平均温度比常规燃烧器的平均温度更高，更均匀。

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