利用钽丝作为热线的瞬态双热线系统对温度区间233－373K、压力区间为0．1—30 MPa的液相二乙二醇单甲醚（diethylene glycol monom ethylether，DGMME）的导热系数进行了实验研究，并将实验数据拟合为温度和压力的关联式。实验数据与导热系数关联式计算结果的标准偏差和最大偏差分别为0．23％和0．86％，导热系数的合成标准不确定度小于±1．0％。
The thermal conductivity of liquid diethylene glycol monomethyl ether （DEGMME） was measured from 233 to 373 K and pressures from 0.1 to 30 MPa, by the transient hot-wire technique employing two anodized tantalum hot wires. The experimental data was correlated as a function of temperature and pressure. The absolute average deviation and the maximum deviation of the experimental results from the correlated equation were 0.23% and 0.86%. The uncertainty of the thermal conductivity was 11.0% with a coverage factor of k ±2.
参考文献
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