Development of a model of the optimal temperature mode of the main gas pipeline operation
DOI:
https://doi.org/10.15587/1729-4061.2021.242440Keywords:
underground gas pipeline, gas temperature, ambient air, air cooler, power consumptionAbstract
The influence of the ambient air temperature on changes in the parameters and thermophysical characteristics of the gas pumped through the underground pipeline was investigated. This was done because there are no scientifically sound recommendations for the optimal gas temperature after coolers at the compressor station. The presence of the site of inversion of heat exchange between gas and soil – a change in the direction of heat exchange along the length of the gas pipeline was revealed. It was proved that the air temperature above the soil surface should be substituted into the formula for calculating the change in gas temperature along the length of the pipeline between compressor stations. This made it possible to determine quantitative changes in the thermophysical and hydraulic characteristics of the gas along the pipe length, in particular, the change in density, viscosity, heat capacity, flow regime. It is shown that the change in air temperature during the year leads to a change in the gas pressure at the end of the gas pipeline section up to 0.15 MPa. A change in air temperature by 10 °С leads to a change in gas temperature by approximately 5 °С. Analytical studies made it possible to develop practical recommendations for the power-saving operation of air coolers at compressor stations. It was determined that the optimum gas temperature at the cooler outlet will be the temperature at which the heat exchange inversion point along the length of the gas pipeline coincides with the location of the subsequent station. It is shown how to control gas cooling in air coolers. In particular, by shutting down one of several operating devices and changing the speed of the fan drive. The developed recommendations will make it possible to quickly regulate the temperature mode of the underground gas pipeline operation at optimal power consumption for the operation of the gas cooling system after gas compression
References
- Korshak, A. A., Nechval', A. M. (2008). Proektirovanie i ekspluataciya gazonefteprovodov. Sankt-Peterburg: Nedra, 488.
- SOU 60.3-30019801-050:2008. Pravyla tekhnichnoi ekspluatatsiyi mahistralnykh hazoprovodiv. Kyiv: Ukrtranshaz, 197.
- Keystone XL Project. APPENDIX S. Pipeline Temperature Effects Study (2013). Available at: https://2012-keystonepipeline-xl.state.gov/documents/organization/205567.pdf
- Dong, H., Zhao, J., Zhao, W., Si, M., Liu, J. (2019). Study on the thermal characteristics of crude oil pipeline during its consecutive process from shutdown to restart. Case Studies in Thermal Engineering, 14, 100434. doi: https://doi.org/10.1016/j.csite.2019.100434
- Moiseev, B. V., Zemenkov, YU. D., Nalobin, N. V., Zemenkova, M. Yu., Dudin, S. M. (2016). Metody teplovogo rascheta truboprovodov razlichnogo naznacheniya. Tyumen': TIU, 183.
- Lurye, M. V., Musailov, I. T. (2018). Peculiarities of gas transportation via the turkish stream gas pipeline. Oil and Gas Territory, 3, 42–50. Available at: https://cyberleninka.ru/article/n/osobennosti-rezhimov-transportirovki-gaza-po-gazoprovodu-turetskiy-potok
- STO Gazprom 2-3.5-051-2006. Normy tehnologicheskogo proektirovaniya magistral'nyh gazoprovodov. Izdanie oficial'noe. Moscow: ZAO «Izdatel'skiy Dom Poligrafiya», 205.
- Kuczyński, S., Łaciak, M., Olijnyk, A., Szurlej, A., Włodek, T. (2019). Thermodynamic and Technical Issues of Hydrogen and Methane-Hydrogen Mixtures Pipeline Transmission. Energies, 12 (3), 569. doi: https://doi.org/10.3390/en12030569
- Edalat, M., Mansoori, G. A. (1988). Buried Gas Transmission Pipelines: Temperature Profile Prediction through the Corresponding States Principle. Energy Sources, 10 (4), 247–252. doi: https://doi.org/10.1080/00908318808908933
- Karyakina, E. D., Shammazov, I. A., Shalygin, A. V. (2021). Main aspects of liquefied natural gas process line thermal and hydraulic calculations. IOP Conference Series: Earth and Environmental Science, 677 (5), 052056. doi: https://doi.org/10.1088/1755-1315/677/5/052056
- Duan, J., Wang, W., Zhang, Y., Liu, H., Lin, B., Gong, J. (2012). Calculation on inner wall temperature in oil-gas pipe flow. Journal of Central South University, 19 (7), 1932–1937. doi: https://doi.org/10.1007/s11771-012-1228-6
- Yanvarev, I. A., Vanyashov, A. D., Krupnikov, A. V. (2015). Thermal Management Technologies Development for the Gas Transport on the Gas-main Pipeline. Procedia Engineering, 113, 237–243. doi: https://doi.org/10.1016/j.proeng.2015.07.327
- Garris, N. A. (2009). Resursosberegayuschie tehnologii pri magistral'nom transporte gaza. Sankt-Peterburg: OOO «Nedra», 368.
- Buzovskyi, V. (2021). Buzovskiy/main-gas-pipeline: Calculations of main gas pipeline section. Zenodo. Available at: https://zenodo.org/record/5504422#.YWfXylVByUk
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