Corrosion simulation via coupling computational fluid dynamics and NORSOK CO2 corrosion rate prediction model for an outlet header piping of an air-cooled heat exchanger
| Autor: | Mohammad Mahdi Dana, Mehdi Javidi |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Piping business.industry Turbulence General Engineering 020101 civil engineering 02 engineering and technology Mechanics Computational fluid dynamics Computer Science::Other 0201 civil engineering Corrosion Physics::Fluid Dynamics Viscosity 020303 mechanical engineering & transports 0203 mechanical engineering Heat exchanger Coupling (piping) General Materials Science Streamlines streaklines and pathlines Physics::Chemical Physics business |
| Zdroj: | Engineering Failure Analysis. 122:105285 |
| ISSN: | 1350-6307 |
| DOI: | 10.1016/j.engfailanal.2021.105285 |
| Popis: | In this study CO2 corrosion of outlet header pipe of an air-cooled heat exchanger in a natural gas dehydration unit of a gas refinery was investigated by simulation via coupling computational fluid dynamics and NORSOK M-506 CO2 corrosion prediction model. The Euler-Euler approach incorporated with k–e model for the fluid turbulence was employed to simulate gas-liquid two-phase flow. The simulation results were utilized as the inputs of NORSOK CO2 corrosion prediction model to calculate CO2 corrosion rate. Fluid streamlines, velocity, viscosity, density and temperature profiles and also the distribution of gas and liquid phases through the investigated outlet header pipe were calculated and a three-dimensional corrosion rate map was presented. The results showed that there is a good agreement between the data obtained by corrosion simulation and field observation. It was found here that coupling computational fluid dynamics and CO2 corrosion prediction models can successfully predict regional corrosion rates and determine locations susceptible to CO2 corrosion. |
| Databáze: | OpenAIRE |
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