Thermal Conductivity Measurements of Liquid Ammonia by the Transient Short-Hot-Wire Method
Thermal Conductivity Measurements of Liquid Ammonia by the Transient Short-Hot-Wire Method
复制标题
瞬态短热线法测量液氨的热导率
DOI：
10.1007/s10765-020-02633-8
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发表时间：
2020
影响因子：
2.2
通讯作者：
Yoshinaga Tohru
中科院分区：
文献类型：
--
作者：
Tomida Daisuke;Yoshinaga Tohru
大多数氨的现有热导率数据是在 1988 年之前获得的。1988 年之前获得的数据可能会受到对流的影响。需要通过高速采样的瞬态热线方法来检查这些影响的可能性。在本研究中，采用瞬态短热线法测量液氨的导热系数，并与 REFPROP 10.0 的值进行比较。采用瞬态短热线法测量 284–354 K 和 2–10 MPa 下的导热系数。与REFPROP 10.0的计算值相比，平均绝对偏差为5.6%，所有测量值均低于REFPROP 10.0的计算值。
Most existing thermal conductivity data for ammonia were obtained before 1988. Data obtained before 1988 may be affected by convection. The potential for these effects needs to be examined by the transient hot-wire method with high-speed sampling. In this study, the thermal conductivity of liquid ammonia was measured by the transient short-hot-wire method and compared with values from REFPROP 10.0. The transient short-hot-wire method was used to measure thermal conductivity at 284–354 K and 2–10 MPa. Compared with the calculated values from REFPROP 10.0, the average absolute deviation was 5.6 % and all the measured values were lower than those from REFPROP 10.0.