№82-21

Technological and energy advantages of induction heating in oil transportation systems by pipelines

V. Rastsvietaiev¹, https://orcid.org/0000-0003-3120-4623

D. Vasylchenko¹   https://orcid.org/0009-0005-1304-1826

¹Dnipro University of Technology, Dnipro, Ukraine

Coll.res.pap.nat.min.univ. 2025, 82:246-257

Full text (PDF)

https://doi.org/10.33271/crpnmu/82.246

ABSTRACT

Purpose. To study the potential and effectiveness of induction heating in modern oil pipeline transportation systems in order to identify ways to improve the technical efficiency, operational reliability, and environmental sustainability of the infrastructure through the implementation of innovative energy-saving technologies.

The methods. Numerical methods were applied taking into account the nonlinear temperature dependence of oil viscosity and the processes of formation and accumulation of paraffin deposits. The main task of modeling is to ensure the optimal heating mode with minimal energy consumption. Analysis of the example confirmed that the oil temperature T_f(z) increases along the pipeline from 20 °C to 80-100 °C, depending on the thermal load, insulation quality and length of the section.

Findings. The results obtained demonstrate the effectiveness of induction heating for reducing operating costs, improving the hydraulic regime, increasing throughput and reducing the risk of man-made accidents. The calculated pressure drop (ΔP ≈ 2.62 kPa) corresponds to the permissible operating conditions of main systems and does not create a critical load on the pumping equipment. At the same time, the temperature T_f(z) stably exceeds the critical value of paraffin crystallization (T_с = 30 °C), which indicates the effectiveness of the implemented heating mode at a heat flux q = 1000 W/m².

The originality. The study proposes an improved approach to mathematical modeling of induction heating, taking into account the complex relationships between heat flows, hydrodynamic characteristics, and changes in the physicochemical properties of oil. Particular attention is paid to establishing the relationship between temperature and viscosity and the rate of paraffin formation. The innovative nature of the technology as a high-tech and energy-efficient solution for modernizing oil transportation infrastructure is emphasized.

Practical implementation. The proposed technology facilitates the modernization of energy infrastructure and the development of digital solutions for managing oil transportation systems. Maintaining a temperature of T_f(z) ≥ T_сin all considered scenarios ensures continuous transportation of paraffin-saturated oil without deposit formation, reducing energy costs and the risk of accidents.

Keywords: induction heating, oil transportation, pipelines, energy efficiency, mathematical modeling, viscosity, paraffin deposits, environmental safety, modernization, digitalization.

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