Micro combustor with built-in cross partition plate

Abstract

The invention relates to a micro combustor with a built-in cross partition plate and belongs to the field of energy combustion and utilization. The combustor comprises a combustor outer wall, the cross heat-conduction partition plate, a gas inlet and a gas outlet. The combustor outer wall comprises an upper wall, a lower wall, a left wall and a right wall. According to the combustor, by the adoption of the mode that the cross heat-conduction partition plate is arranged, turbulence of incoming flow gas is enhanced, and detention time is prolonged to a certain degree. Meanwhile, due to the fact that a channel becomes narrow in the partition plate area, the convective heat exchange strength of the inner wall surface and the mixed gas is improved, and rapid transfer of heat is achieved. The high-temperature gas flow is divided into four streams along the cross partition plate, so that temperature distribution of the wall surface is more uniform. Due to the design mode of the built-in cross heat-conduction partition plate, the micro-scale combustion process in the channel is more sufficient and stable, the radiation temperature of the wall surface can be increased, temperature distribution of the wall surface is more uniform, and thus a positive effect is achieved on improvement to the output performance of a miniature thermo photovoltaic system.

Description

technical field [0001] The invention relates to a built-in cross partition type micro burner, which belongs to the field of energy combustion and utilization. Background technique [0002] In recent years, with the rapid development of MEMS technology, its energy supply has become a research hotspot. The micro power system has the advantages of high energy density, small size, light weight and long working life, so it can provide portable energy for a variety of personal electronic devices including computers. Micro-thermophotovoltaic System (MTPVSystem for short) is one of them. This system directly converts the radiation energy on the surface of the high-temperature burner into electrical energy through photovoltaic cells. Its structure is relatively simple and there are no moving parts. It is a typical micro power unit. [0003] As one of the important components of the micro thermoelectric system, the design of the micro burner determines whether a stable internal comb...

AI Technical Summary

Problems solved by technology

However, there are also some defects, that is, the convective heat transfer between the wall surface and the mixture is not strong enough, and the structure of the burner is relatively complicated.

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