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5/17/2017  |   2:30 PM - 2:55 PM   |  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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Sofia K. Mylona (POC,Primary Presenter,Author), School of Mechanical & Chemical Engineering UWA, sofia.mylona@uwa.edu.au;
Thomas J. Hughes (Author,Co-Author), Uwa, thomas.hughes@uwa.edu.au;
Kenneth N. Marsh (Author,Co-Author), School of Mechanical & Chemical Engineering UWA, ken@kbmarsh.com;
Eric F. May (Author,Co-Author), School of Mechanical & Chemical Engineering UWA, Eric.May@uwa.edu.au;
Young Hoon Sohn (Co-Author), Korea Advanced Institute of Science and Technology, yhsohn@snu.ac.kr;
Yutaek Seo (Author,Co-Author), Korea Advanced Institute of Science and Technology, yutaek.seo@snu.ac.kr;






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