Numerical Study on Unsteady State Dispersion of Leakage CO<sub>2</sub> from Geological Sequestration

您当前的位置：

首页 >

文章列表页 >

Numerical Study on Unsteady State Dispersion of Leakage CO₂ from Geological Sequestration

更新时间：2025-07-09

- Numerical Study on Unsteady State Dispersion of Leakage CO₂ from Geological Sequestration
- Vol. 46, Issue 9, Pages: 102-107(2012)
- 作者机构：
  
  西安交通大学多相流国家重点实验室,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： X831
- Online First：10 September 2012，
  
  Published：2012
- 稿件说明：
移动端阅览
Numerical Study on Unsteady State Dispersion of Leakage CO₂ from Geological Sequestration[J]. 2012, 46(9): 102-107.
DOI：

Numerical Study on Unsteady State Dispersion of Leakage CO₂ from Geological Sequestration[J]. 2012, 46(9): 102-107. DOI：

摘要

针对碳捕集与封存技术中泄漏监测的难点

利用数值模拟方法研究了地质封存中CO

泄漏的非稳态扩散

以及不同的垂直风廓线形式、大气、地形等因素对非稳态扩散模拟结果的影响

探索了地质封存中CO

泄漏扩散的分布规律.研究结果表明:不同风廓线下CO

泄漏的扩散规律基本一致

仅在垂直方向上CO

的体积分数略有差异; 大气层结不稳定程度越高

越有利于泄漏气体的扩散; 风速越大

扩散达到稳定所需要的时间越短

稳定的CO

的体积分数越小; 大气温度越高

同一高度上稳定的CO

体积分数越大

越有利于泄漏气体的垂直扩散; 地表面粗糙度越大

越有利于垂直湍流波动的形成

当水平扩散减慢时

达到稳定所需要的时间延长.

Abstract

An unsteady state dispersion of CO

leakage from geological sequestration was investigated by using the computational fluid dynamics method for the CO

leakage monitor in the carbon capture and sequestration technology. Three types of wind profiles and some atmosphere and terrain factors affecting the atmospheric gas dispersion were studied. The results show that the dispersion law is consistent under different wind profiles. The vertical variation of wind velocity is greater than that in uniform velocity and logarithm law

and thus the variation of vertical concentration in power law is larger. The stronger instability of atmosphere is more favorable for gas dispersion. Moreover

the influence of atmosphere stability is greater when the measurement locati

on is closer to the leakage source. The time of leakage gas reaching the stable state is shorter with lower stable concentration when the wind speed is faster. The stable concentration increases with an increase in temperature at the same height

which is beneficial for vertical dispersion of the leakage gas. The heavier ground roughness is in favor of forming vertical turbulence and therefore impedes the horizontal dispersion.

关键词

Keywords

references

李青, 余云松, 姜钧, 等. IPCC special report: carbon capture and storage [M]. Cambridge, UK: Cambridge University Press, 2005: 54-74.

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Electrothermal Coupling Research on the Evolutionary Law of Anti-Corona Performance for High-Altitude Air-Cooled Generators

Sensitivity Analysis of Foil Geometrical Parameters for the Third-Generation CO2 Gas Foil Bearings Based on Design of Experiments Method

Integrated and Joint Design Optimization of Centrifugal Compressor Impeller and Casing Treatment at Multiple Working Points

Diffusion Characteristics and Influencing Factors in Case of Hydrogen Leakage from Fuel Cell Vehicles Running in Tunnels

Effects of Expansion Angle Crater Film Hole on the Film Cooling Characteristics of a Double-Wall Structure

Related Author

No data

Related Institution

No data

⁰

Numerical Study on Unsteady State Dispersion of Leakage CO2 from Geological Sequestration

DOI：

摘要

Abstract

关键词

Keywords

references

Numerical Study on Unsteady State Dispersion of Leakage CO₂ from Geological Sequestration