Abstract
Thermal property measurements of natural gas hydrates in various sediment mixtures are necessary to describe heat transfer to surroundings during well boring and gas production. An apparatus for measuring thermal diffusivity in various mixtures of hydrates with sediment has been constructed. The apparatus uses a new method for determining thermal diffusivity that has advantages over the von Herzen and Maxwell probe method. The new experiment is simple and inexpensive to construct and appears to be much more accurate than the ±30% reported for an earlier probe. The thermal diffusivity of ice has been measured to determine the uncertainty of the technique, i.e., within ±6% with a 95% confidence level. The thermal diffusivity for pure methane hydrate at various temperatures is reported.
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Paper presented at the Fifteenth Symposium on Thermophysical Properties, June 22–27, 2003, Boulder, Colorado, U.S.A.
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Turner, D.J., Kumar, P. & Sloan, E.D. A New Technique for Hydrate Thermal Diffusivity Measurements. Int J Thermophys 26, 1681–1691 (2005). https://doi.org/10.1007/s10765-005-8588-1
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DOI: https://doi.org/10.1007/s10765-005-8588-1