Measurement method of flame excited state particle radiation rate based on uniform light source

A uniform light source and particle radiation technology, applied in optical radiometry, photometry, measuring devices, etc., to overcome the cost of the system, avoid the integrity of the flow field, and reduce the cost

Active Publication Date: 2021-05-28
NAT UNIV OF DEFENSE TECH
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no relevant method for measuring the radiation rate of excited state particles in flames, and designing a method to measure the radiation rate of excited state particles in flames is a technical problem that needs to be solved urgently in this field.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Measurement method of flame excited state particle radiation rate based on uniform light source
  • Measurement method of flame excited state particle radiation rate based on uniform light source
  • Measurement method of flame excited state particle radiation rate based on uniform light source

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0044] In order to make the technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0045] refer to figure 1 , figure 2 and image 3 , the present embodiment provides a method for measuring the radiation rate of flame excited state particles based on a uniform light source, which includes the following steps:

[0046] The first step is to build a test system and obtain the initial image of chemiluminescence.

[0047] The test system includes jet diffusion burner, gas supply system, ICCD camera, filter, integrating sphere uniform light source and computer. The air supply system provides methane and air for the jet diffusion burner, which are ignited by the spark plug outside the nozz...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

A method for measuring the radiation rate of flame excited state particles based on a uniform light source, using a jet diffusion burner, an integrating sphere uniform light source, two ICCD cameras, Edmund 34980 filters, Edmund 65198 filters and a computer to build a test system, based on two cameras shooting The initial image of OH* chemiluminescence and the initial image of CH* chemiluminescence obtained from the jet diffusion flame generated by the combustion of the jet diffusion burner, and the radial distribution of OH* chemiluminescence and the radial distribution of CH* chemiluminescence were obtained by using the inverse Radon transform. The luminous intensity of the uniform light captured by the two cameras is obtained based on the images of the uniform light source obtained by shooting the integrating sphere uniform light source respectively by the two cameras. Based on the radial distribution of OH* chemiluminescence and the luminous intensity of the uniform light source captured by the corresponding camera, the radiation rate of OH* excited state particles is obtained, and the CH* excitation is obtained based on the radial distribution of CH* chemiluminescence and the luminous intensity of the uniform light captured by the corresponding camera The radiation rate of the particles in the state. The invention is low in cost, simple and efficient.

Description

technical field [0001] The invention relates to the technical field of diagnosis of combustion process, in particular to a method for measuring the radiation rate of flame excited state particles based on a uniform light source. Background technique [0002] Chemiluminescence in combustion refers to the phenomenon that photons of a specific frequency are released when excited state particles excited by chemical reactions undergo radiative transitions. Since the formation of excited-state particles is mainly derived from key chemical reactions, chemiluminescence is directly related to important combustion parameters such as equivalence ratio, heat release rate, and flame structure, and can be considered as a spontaneous tracer of the combustion process. The chemiluminescence combustion diagnostic technology developed based on this does not require complex lasers and optical path arrangements, and overcomes the shortcomings of harsh requirements for the experimental environmen...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): G01J1/52G03B15/03
CPCG01J1/52G03B15/03
Inventor 刘瑶谭建国张冬冬李浩姚霄高政旺肖犇
Owner NAT UNIV OF DEFENSE TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap