Measurements of the thermal conductivity of R11 and R12 in the temperature range 250–340 K at pressures up to 30 MPa |
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| Authors: | M. J. Assael E. Karagiannidis W. A. Wakeham |
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| Affiliation: | (1) Chemical Engineering Department, Aristotle University, GR54006 Thessaloniki, Greece;(2) Department of Chemical Engineering and Chemical Technology, Imperial College, SW7 2BY London, UK |
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| Abstract: | This paper reports new, absolute measurements of the thermal conductivity of liquid refrigerants R11 and R12 in the temperature range 250–340 K at pressures from saturation up to 30 MPa. The measurements, performed in a new transient hot-wire instrument employing two anodized tantalum wires, have an estimated uncertainty of ±0.5%. Measurements of the thermal conductivity of toluene in the temperature range 250–340 K at pressures up to 30 MPa are also reported. |
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| Keywords: | high pressure R11 R12 refrigerants thermal conductivity toluene transient hot-wire technique |
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