Theoretical and Numerical Analysis of Freezing Risk During LNG Evaporation Process
AbstractThe liquid natural gas (LNG) boiling process concerns most LNG applications due to a need for regasification. Depending on the pressure, the equilibrium temperature of LNG is 112–160 K. The low boiling temperature of LNG makes the vaporization process challenging because of a large temperature difference between the heating medium and LNG. A significant risk included in the regasification process is related to the possibility of solid phase formation (freezing of the heating fluid). A solid phase formation can lead to an increase in pressure loss, deterioration in heat transfer, or even to the destruction of the heat exchanger. This prompts the need for a better understanding of the heat transfer during the regasification process to help avoid a solid phase formation. The present research is focused on the investigation of the mutual interactions between several parameters, which play a significant role in the regasification process. The research is based on a zero-dimensional (0D) model, which was validated through the comparison with a state-of-the-art Computational Fluid Dynamics (CFD) model. This made fast calculations and the study of the risk of freezing for a wide range of parameter space possible, including the LNG boiling regime. The boiling regime of LNG was shown to be a key factor in determining the risk of freezing. View Full-Text
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Rogala, Z.; Brenk, A.; Malecha, Z. Theoretical and Numerical Analysis of Freezing Risk During LNG Evaporation Process. Energies 2019, 12, 1426.
Rogala Z, Brenk A, Malecha Z. Theoretical and Numerical Analysis of Freezing Risk During LNG Evaporation Process. Energies. 2019; 12(8):1426.Chicago/Turabian Style
Rogala, Zbigniew; Brenk, Arkadiusz; Malecha, Ziemowit. 2019. "Theoretical and Numerical Analysis of Freezing Risk During LNG Evaporation Process." Energies 12, no. 8: 1426.
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