Heat conduction and phase transformations are basic physical-chemical process and control the kinetics of dissociation, fluid flow and strata deformation during hydrate dissociation in sediments. This paper presents a simplified analysis of the thermal process by assuming that the heat-induced evolution can be decoupled from flow and deformation processes. Self-similar solutions for one-, two- and three-phase transformation fronts are obtained. A series of experiments on THF-hydrate-bearing sediments was conducted to test the theory. The theoretical, numerical and experimental results on the evolution of hydrate dissociation front in the sediment are in good agreement.
Heat-Induced Evolution of Phase Transformations in Tetrahydrofuran Hydrate-Bearing Sediment
Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received June 11, 2012; final manuscript received January 3, 2014; published online March 6, 2014. Assoc. Editor: Wei Tong.
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Zhang, X. H., Lu, X. B., Zheng, Z. M., and Zhang, L. M. (March 6, 2014). "Heat-Induced Evolution of Phase Transformations in Tetrahydrofuran Hydrate-Bearing Sediment." ASME. J. Heat Transfer. May 2014; 136(5): 052002. https://doi.org/10.1115/1.4026454
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