Dispersion of odorants in natural gas distribution networks
| Autor: | E. Fontana, R. Gross, S. M. A. G. U. Souza, M. B. Quadri, Adriano da Silva |
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| Rok vydání: | 2018 |
| Předmět: |
Fluid Flow and Transfer Processes
021110 strategic defence & security studies Turbulence business.industry 020209 energy Flow (psychology) 0211 other engineering and technologies 02 engineering and technology Mechanics Computational fluid dynamics Condensed Matter Physics Physics::Fluid Dynamics Pipeline transport Natural gas 0202 electrical engineering electronic engineering information engineering Range (statistics) Environmental science Diffusion (business) Reynolds-averaged Navier–Stokes equations business |
| Zdroj: | Heat and Mass Transfer. 54:2827-2834 |
| ISSN: | 1432-1181 0947-7411 |
| DOI: | 10.1007/s00231-018-2323-5 |
| Popis: | A numerical modeling analysis of a pulse train diffusion, representing an odorant injection in a natural gas pipeline, was carried out and compared with experimental data from a real pipeline. The main purpose of this study is to evaluate how the odorant dispersion occurs along the pipe. Due to technical limitations, the odorant is injected in the line as a pulse and it is important to find out the point in the pipeline where the oscillating concentration of odorant fits into a range of values that meet both the legislation and the interests of customers who may have the quality of their products affected by this oscillation. Since the natural gas pipelines do not have strong streamline curvatures and the flow is always turbulent, it is relatively easy to determine the velocity and concentration fields using the Computational Fluid Dynamics techniques. In this study the RANS (Reynolds Average Navier-Stokes) equations with the k − e turbulence model was used to build the mathematical model. Comparisons of the experimental data and numerical results show a strong agreement for the studied cases. Based on the results, it was possible to know the minimum and maximum values of odorant concentration along the pipelines. |
| Databáze: | OpenAIRE |
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