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Direct-current heating single-channel gas heat exchange experimental device

An experimental device and single-channel technology, applied in the field of energy and power, to avoid high-temperature oxidation and increase the effect of heat insulation

Inactive Publication Date: 2021-07-16
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no report on the experimental device for applying DC electric heating technology to high-temperature gas flow and heat exchange in a single channel.

Method used

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  • Direct-current heating single-channel gas heat exchange experimental device
  • Direct-current heating single-channel gas heat exchange experimental device
  • Direct-current heating single-channel gas heat exchange experimental device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] refer to Figure 1-3 Shown is a direct current heating single-channel gas heat exchange experimental device, including an air inlet tube 1, an experimental device main body 2, an outlet tube 3 and a DC power supply 4; wherein the top of the experimental device main body 2 is provided with an observation window, and the bottom of the experimental device main body The air inlet tube 1 and the air outlet tube 3 are tightly connected to the two ends of the main body 2 of the experimental device through flanges, wherein the air inlet tube 1 is provided with a baffle channel inside, and the gas working fluid injected into the baffle channel It is hydrogen, helium, argon, nitrogen, carbon dioxide and helium-xenon mixed gas, and the punching tube 3 is a gradual expander. The top of the experimental device main body 2 is provided with an observation window 24, and the inside is provided with an experimental tube 21, a thermal insulation sleeve 22 and two electrodes 23; The ther...

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PUM

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Abstract

The invention discloses a direct-current heating single-channel gas heat exchange experimental device which comprises a gas inlet cylinder, an experimental device main body, a gas outlet cylinder and a direct-current power supply, the air inlet cylinder and the air outlet cylinder are tightly connected to the two ends of the experimental device main body; an experiment pipe, a heat insulation sleeve and two electrodes are arranged in the experiment device main body; two ends of the experiment tube are respectively communicated with the air inlet cylinder and the experiment device main body; the heat insulation sleeve is arranged outside the experiment tube in a sleeving manner; the two electrodes are arranged outside the experiment tube in a sleeving manner, and the two electrodes are both embedded into the heat insulation sleeve; and the two electrodes are electrically connected with the direct-current power supply. According to the invention, high-precision, stable and uniform wall surface heat flux density distribution can be realized, the air tightness is better, and the experiment precision is higher.

Description

technical field [0001] The invention relates to the technical field of energy and power, and more specifically relates to a direct current heating single-channel gas heat exchange experimental device. Background technique [0002] Due to its low density and good compressibility, gas is often used as a coolant in energy and power industries with special needs, such as gas turbines, aero engines, rocket engines, helium-cooled nuclear fusion reactor cladding, high-temperature air-cooled reactors, hydrogen-cooled nuclear heat Propulsion reactors, gas heat accumulators and various gas heat exchangers, etc. The flow and heat transfer characteristics of gas in these devices affect the operating performance and safety of these devices. The flow and heat transfer of gas in channels with high temperature, large pressure changes, and high wall heat flux is more complicated, and the governing equation of gas flow and heat transfer with variable physical properties is nonlinear and coup...

Claims

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Application Information

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IPC IPC(8): G01N25/20G09B23/16
CPCG01N25/20G09B23/16
Inventor 王成龙房玉良田文喜张大林苏光辉秋穗正
Owner XI AN JIAOTONG UNIV
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