Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for calculating aerosol deposition efficiency of micro channel of steel containment vessel

An aerosol deposition and steel containment technology, which is applied in the field of aerosol calculation, can solve the problem of not considering the evaluation of source terms of tiny channels, and achieve the effect of reducing calculation errors

Pending Publication Date: 2022-04-19
SHANGHAI JIAO TONG UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing studies do not consider the influence of micro-channels on aerosol deposition, resulting in inaccurate source term assessment. Therefore, it is necessary to study the aerosol deposition efficiency of micro-channels formed by cracks in the containment

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
  • Method for calculating aerosol deposition efficiency of micro channel of steel containment vessel
  • Method for calculating aerosol deposition efficiency of micro channel of steel containment vessel
  • Method for calculating aerosol deposition efficiency of micro channel of steel containment vessel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0129]The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0130] Such as figure 1 As shown, the present invention is used in the method for calculating the aerosol deposition efficiency of steel containment micro-channels, and the steps are as follows:

[0131] 1. The geometric parameters of the leaking tiny channel are known (the cross-sectional area is 3.14×10 -6 m 2 , the geometric shape is a circular channel, the channel length is 1m, and the channel radius is 0.001m)

[0132] Assuming that the fluid in the tiny channel is isothermal flow, the channel width is ...

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

The invention discloses a method for calculating aerosol deposition efficiency of a micro channel of a steel containment vessel, which comprises the following steps of: 1, judging whether geometric parameters of the micro channel of the steel containment vessel can be obtained or not, namely obtaining related parameters such as cross-sectional area, geometric shape, channel geometric size and the like of the micro channel; 2, if the aerosol deposition efficiency can be obtained, calculating the aerosol deposition efficiency in the micro channel through a control equation and a flow equation; 3, if the aerosol deposition efficiency cannot be obtained, calculating the aerosol deposition efficiency in the micro channel through the containment leakage rate; and 4, determining the final aerosol deposition efficiency of the micro channel of the steel containment.

Description

technical field [0001] The invention relates to the field of aerosol calculation, in particular to a method for calculating the aerosol deposition efficiency of a micro-channel of a steel containment vessel. Background technique [0002] The containment vessel of a nuclear power plant serves as the boundary between the containment atmosphere and the external environment, and is the last safety barrier to prevent the release of fission products to the environment. The surface structure of the steel containment vessel is complex, and there are a large number of components such as gates, valves, penetrations, and connectors. Under complex and harsh working conditions, the integrity of the containment seal is easily damaged, resulting in radioactive aerosols in the containment Leakage into the outside atmosphere, causing radioactive pollution. [0003] Due to the long working hours, harsh working environment, assembly process and other problems, the surface components of the co...

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 Applications(China)
IPC IPC(8): G06F30/28G06F30/17G06F113/08G06F119/14
CPCG06F30/28G06F30/17G06F2113/08G06F2119/14
Inventor 佟立丽吕强曹学武
Owner SHANGHAI JIAO TONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com