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5/17/2017 | 2:30 PM - 2:55 PM | Thermal Conductivity of Gaseous Methane, Propane and a Binary Mixture of [xCH4 + (1-x)C3H8] with x = 0.95 at T = (253 to 373) K and p up to 14 MPa | 2

Thermal Conductivity of Gaseous Methane, Propane and a Binary Mixture of [xCH4 + (1-x)C3H8] with x = 0.95 at T = (253 to 373) K and p up to 14 MPa

The transient hot wire technique is an absolute method for measuring the thermal conductivity of fluids[1]. In this work a transient hot-wire device was used to measure the thermal conductivity of gaseous methane, propane and a mixture xCH4 + (1-x)C3H8, where x ? 0.95. The sensor consists of two 10 ?m-diameter platinum wires with lengths 15 and 4 cm. The wires are placed in series on different branches of a Wheatstone bridge and all the necessary corrections were applied to ideal model for the measurement of the thermal conductivity[2],[3]. The correct operation of the device was confirmed by preliminary measurements of methane, propane and nitrogen at the temperature range (253 to 373) K and pressure range (0.1 – 14) MPa Our thermal conductivity results were compared with the literature data and the transport property models implemented in NIST REFPROP [4].

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Presenters/Authors

Sofia K. Mylona (), School of Mechanical & Chemical Engineering UWA, sofia.mylona@uwa.edu.au;