THERMAL SCIENCE

International Scientific Journal

Thermal Science - Online First

online first only

Experimental and numerical simulation on buried hot fuel oil pipelines in three modes flow regime considering temperature loss during a shutdown

ABSTRACT
Aiming to study the temperature distribution along buried pipelines containing hot fuel oil, a new large-scale laboratory is constructed from the perspective of the corresponding fluid thermophysical properties. Also, a modeling of the pipeline, and the soil around it, was performed along the pipeline for observation of all three modes of turbulent, laminarization, and laminar flow, which is validated by experimental results. Furthermore, the appropriate data are also gathered from the actual pipeline, 107 km of the 26" pipeline between Abadan Refinery and Mahshahr Port, and the results of the experiment and modeling are reconfirmed. The experiment shows that the viscosity and fluid density of fuel oil is strongly temperature-dependent. Many experiments are performed on the parameters affected by temperature according to their importance. The method chosen to simulate three flow modes along the pipeline shows less than 2% error in turbulent and laminar zones and reveals just a 3% error to experimental data in the laminar region. The maximum safe time during the stopping period of the pipeline (MSST) and holding fuel oil in it is calculated based on the pour point of fuel oil. This time is critical for the real pipeline in sudden shutdown and is calculated 41 hours.
KEYWORDS
PAPER SUBMITTED: 2020-08-08
PAPER REVISED: 2020-11-26
PAPER ACCEPTED: 2020-11-28
PUBLISHED ONLINE: 2021-01-02
DOI REFERENCE: https://doi.org/10.2298/TSCI200808345D
REFERENCES
  1. Zhixia Li, et al. Catalytic conversion of waste cooking oil to fuel oil: Catalyst design and effect of solvent, Journal of Energy, (2018), pp. 270-277
  2. Агапкин. В. М, Thermodynamic and Hydrodynamic Calculations on Pipelines of Crude Oil and Product Oil, Translated by Luo. T. H, Petroleum Industry Press, (1986)
  3. Danielewicz.J, et al., Three-dimensional numerical model of heat losses from district heating network pre-insulated pipes buried in the ground, Journal of Energy, (2016), pp. 172-184
  4. Bo Yu, et al., Numerical Simulation of a buried hot oil pipeline under normal operation, Applied Thermal Engineering, 30 (2010) pp. 2670-2679
  5. C.J.Li, et al., Study on Safety Technology of Shutdown and Restart Process for Waxy and High Viscosity Oil Transportation Pipeline, (2010) International Symposium on Safety Science and Technology (ISSST2010), 26-29 October, Hangzhou, China.
  6. Peysson .Y, Bensakhria .A, Pipeline lubrication of heavy oil: Experimental investigation of flow and restart problems, SPE International Thermal Operations and Heavy Oil Symposium, SPE, 1-3 (2005)
  7. Li. W, Numerical Simulation of Transient Hydraulic and Thermal Operation of Buried Hot Oil Pipelines and its Applications, Journal of Engineering, China University of Petroleum, (2007)
  8. Laboratory Information & Refinery Engineering, Abadan Oil Refining Company, About Types of fuel oil outlet of Abadan Oil Refinery Towers. (2014 to 2018)
  9. Xu Cheng, et al., Numerical Simulation of a Buried crude oil Pipeline during Shutdown, Pet.Sci, (2010), 7, pp. 73-82
  10. Zhang. Z. W, Ling. X, Yu. B, Numerical simulation of a buried hot crude oil pipeline under normal operation, Journal of Engineering Thermo physics, (2008),Vol. 29, pp. 1389-1392
  11. Archer R.A. and O'Sullivan M.J., Models for heat transfer from a buried pipe, SPE 36763, (1997)
  12. Perpar Matjaz, et al., Soil thermal conductivity prediction for district heating pre-insulated pipeline in operation, Journal of Energy. (2012), pp. 197-210
  13. Massey, B., revised by Ward-Smith, J., Mechanics of fluids. Taylor & Francis. New York, USA, (2006)
  14. Iranian Research Institute of Petroleum Industry. Results of Chemical Lab of fuel oil types and characteristics. Report, NIOC-RIPI. (2016 and 2017).
  15. Control Center Lab of Abadan Refinery datasheet from (2015 to 2018)
  16. The Knowledge Project on the Study of the Properties of Special Fluid Thermophysics in Oil Industry- Iran Petroleum Development and Development Organization (2015-2017)
  17. Geological Libraries Information Faculty of Geology and Faculty of the Agriculture Shahid Chamran University of Ahvaz-Iran (2016-2018)
  18. Rafael Martínez-Palou, et al., Transportation of heavy and extra-heavy crude oil by pipeline, Journal of Petroleum Science and Engineering 75 (2011) pp. 274-282
  19. CUI Xiu-gui, et al., Experimental research on characteristic of start-up pressure wave propagation in gelled crude oil by large-scale flow loop, J. Cent. South Univ. Technol. (2008) 15(SL), pp. 467-470
  20. Changjun Li, et al., Research of heated oil pipeline shutdown and restart process based on VB and MATLAB, I.J.Modern Education and Computer Science, (2010), 2, pp. 18-24
  21. Gudala, M., et al., Hydrodynamics and energy analysis of heavy crude oil transportation through horizontal pipelines using novel surfactant, Journal of Petroleum Science and Engineering (2019)
  22. Langevin, D., et al., Crude oil emulsion properties and their application to heavy oil transportation, Oil Gas Sci. Technol. 59 (2004), pp. 511-521
  23. Archaeological Information of Khuzestan Province Iran Reports from 2017 and 2018
  24. O.K. Otami, et al., Steady state analysis of heat transfer in a fully buried crude oil pipeline, International Journal of Heat and Mass Transfer 146 (2020)