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

Method for measuring emission flux of unorganized surface source gas

A gas emission and measurement method technology, applied in the field of measurement and testing, can solve the problems of quantitative monitoring that is difficult to accurately detect the emission flux, and achieve the effect of satisfying convenience and improving accuracy

Pending Publication Date: 2022-06-21
EVERBRIGHT ENVIRONMENTAL TECH CHINA CO LTD +3
View PDF14 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to address the deficiencies of the above-mentioned background technology, to provide a method for measuring the discharge flux of fugitive surface source gas, adopting the conventional flux box method to sample gas samples, and using the discharge flux calculation formula considering the temperature and pressure changes in the box Measure the emission flux of sample gas, solve the technical problem that the existing quantitative monitoring technology of fugitive area source emission gas emission flux is difficult to accurately detect the emission flux, and realize the invention purpose of accurately measuring the emission flux of fugitive area source emission gas

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 measuring emission flux of unorganized surface source gas
  • Method for measuring emission flux of unorganized surface source gas
  • Method for measuring emission flux of unorganized surface source gas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The technical solutions of the invention will be described in detail below with reference to the accompanying drawings.

[0021] The present invention is based on a portable and feasible box-type sampler for accurate gas sampling and working condition parameter recording, and can be applied to the measurement of fugitive gas emission flux on various solid surfaces or non-aerated water surfaces. Common non-organized emission sources in the waste industry: landfill piles and non-aerated water treatment tanks, and the three most significant and common gases with the most significant greenhouse gas effect: carbon dioxide (CO 2 ), methane (CH 4 ), nitrous oxide (N 2 O), to explain. Other similar surface source conditions or gas conditions can be referred accordingly.

[0022] The landfill body and the non-aerated water treatment tank are all surface sources with stable surface. The main difference is that the landfill body is the solid phase release surface, and the non-a...

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 measuring emission flux of unorganized surface source gas, and belongs to the technical field of measurement and testing. According to the method, the temperature and the pressure in a box body of the sampler are collected through the box body type sampler, the concentration of a gas sample collected at each sampling time is detected, and an emission flux calculation formula considering temperature and pressure changes in the box body of the sampler is deduced according to an ideal gas state equation; fitting and calculating a regression equation according to a value of a combined variable consisting of the temperature and the pressure in the box body recorded at each sampling time and the concentration of the gas sample collected at each sampling time and a time value; and substituting the slope of the regression equation into an emission flux calculation formula to obtain a monitoring result of the emission flux of the unorganized non-point source emission gas, so that the measurement precision of the emission flux of the unorganized non-point source gas is effectively improved.

Description

technical field [0001] The invention discloses a method for measuring the discharge flux of unorganized surface source gas, and belongs to the technical field of measurement and testing. Background technique [0002] At present, for the unorganized emission of greenhouse gases from non-organized sources such as the surface of the landfill body and the surface of non-aerated water bodies, the technologies for monitoring the emission flux of unorganized non-point sources of greenhouse gases at home and abroad mainly include qualitative monitoring and quantitative monitoring. Qualitative monitoring methods such as simple field observations, thermal infrared surveys and grid scanning cannot obtain precise and specific emission results. Quantitative monitoring methods such as flux box method, micro-meteorological method, mass balance method / section method, tracer gas plume method, and gas plume method are used to obtain the daily or annual emission flux of greenhouse gases. Micr...

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
IPC IPC(8): G01N33/00G01K13/00G01L11/00G01N1/22
CPCG01N33/0004G01N1/2273G01K13/00G01L11/00
Inventor 王天娇李敏王乾李义华赵彬
Owner EVERBRIGHT ENVIRONMENTAL TECH CHINA CO LTD
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