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Micro combustor with heat pipes embedded in wall face

A micro-combustion and burner technology, which is applied to burners, gas fuel burners, combustion methods, etc., can solve the problems of unstable flame, large radiation wavelength range, and increased heat dissipation rate, so as to improve the temperature uniformity of the wall surface, improve the Longitudinal thermal conductivity, the effect of improving fuel conversion rate

Inactive Publication Date: 2017-03-29
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, as the size of the burner decreases, its specific surface area increases, resulting in a greatly increased heat dissipation rate, making the conventional flame unstable and prone to wall flameout; secondly, because the photosensitive material can only absorb radiation within a certain wavelength range, However, the maximum temperature difference on the wall often reaches more than 200K, and the radiation wavelength range is large, which seriously affects the photoelectric conversion efficiency.

Method used

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  • Micro combustor with heat pipes embedded in wall face
  • Micro combustor with heat pipes embedded in wall face
  • Micro combustor with heat pipes embedded in wall face

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Embodiment Construction

[0018] see figure 1 , the present invention has a flat burner, the fuel gas enters the combustion chamber 1 through the inlet 4, after the fuel gas is burned in the combustion chamber, the tail gas is discharged from the outlet 6, and the surface of the groove 5 is sealed with a SiC cover plate 3 to form a miniature heat pipe, close to the inlet The part is the evaporation section, and the part near the outlet is the condensation section. The liquid sodium potassium alloy absorbs heat and evaporates into a gaseous sodium potassium alloy. It is quickly transmitted from the evaporation section to the condensation section, which makes the wall temperature more uniform, makes the combustion more stable, and expands the combustion limit.

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Abstract

The invention belongs to the technical field of micro thermophotovoltaic systems and particularly relates to a micro device, namely a micro combustor which can convert chemical energy of fuel combustion into electric energy, in particular to a micro combustor with heat pipes embedded in the wall face. The structure of the micro combustor is improved based on the micro-scale premixed combustion technology and the micro heat pipe technology, a series of micro heat pipes are additionally arranged in the wall face of the combustor, and the temperature uniformity of the wall face and the overall performance of the micro combustor are improved.

Description

technical field [0001] The invention belongs to the technical field of micro-thermal photoelectric systems, and specifically relates to a micro-device that converts the chemical energy of fuel combustion into electrical energy, that is, a micro-burner, in particular a micro-burner with a wall embedded in a heat pipe, based on micro-scale premixed combustion technology and The micro-heat pipe technology improves the structure of the micro-burner, adding a series of micro-heat pipes to the wall of the burner to improve the temperature uniformity of the wall to improve the overall performance of the micro-burner. Background technique [0002] The micro-thermophotovoltaic system converts the chemical energy of hydrogen or hydrocarbon fuel into thermal energy directly by burning in the micro-system, and then relies on the light-sensitive material to absorb wall radiation to generate electrical energy. The energy density of this type of system can reach 10W / cm 3 ~100W / cm 3 , whi...

Claims

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Application Information

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IPC IPC(8): F23D14/02F23D14/46F28D15/02
CPCF23D14/02F23D14/46F28D15/02
Inventor 潘剑锋张倚卢青波查正乾
Owner JIANGSU UNIV
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