MEASUREMENTS OF THE THERMAL-CONDUCTIVITY OF R11 AND R12 IN THE TEMPERATURE-RANGE 250-340 K AT PRESSURES UP TO 30 MPA

被引:29
|
作者
ASSAEL, MJ [1 ]
KARAGIANNIDIS, E [1 ]
WAKEHAM, WA [1 ]
机构
[1] UNIV LONDON IMPERIAL COLL SCI & TECHNOL,DEPT CHEM ENGN & CHEM TECHNOL,LONDON SW7 2BY,ENGLAND
关键词
HIGH PRESSURE; R11; R12; REFRIGERANTS; THERMAL CONDUCTIVITY; TOLUENE; TRANSIENT HOT-WIRE TECHNIQUE;
D O I
10.1007/BF00503903
中图分类号
O414.1 [热力学];
学科分类号
摘要
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.
引用
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页码:735 / 751
页数:17
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