Transient nucleate boiling on a horizontal heated cylinder in liquid D-mannitol
Transient nucleate boiling on a horizontal heated cylinder in liquid D-mannitol
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在液体 D-甘露醇中的水平加热圆筒上瞬时成核沸腾
DOI：
10.1016/j.applthermaleng.2018.08.072
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发表时间：
2018
影响因子：
6.4
通讯作者：
M. Shibahara; K. Fukuda; Q.S. Liu
中科院分区：
文献类型：
--
作者：
Keita Tsujimura;Kinichi Nakashima;M. Shibahara; K. Fukuda; Q.S. Liu
测量了D-甘露醇在水平加热圆柱上的不同起始沸腾热流密度和瞬态沸腾换热系数。在实验中使用铂圆筒作为加热器。铂圆柱体的直径和有效长度分别为1.0和25.9 mm。通过DC电源加热圆筒，直到达到液体D-甘露醇中的核沸腾状态。液体D-甘露醇的温度范围为455 ~ 502 K。产热速率的e-折叠时间范围为0.35 ~ 19 s。初始沸腾热通量与生热率的e折叠时间有关，而瞬态核沸腾传热不受生热率e折叠时间的影响。根据实验数据，得到了初始热流密度和瞬态换热系数的关联式。
Various incipient boiling heat fluxes and transient heat transfer coefficients of nucleate boiling on a horizontal heated cylinder in liquid D-mannitol were measured. A platinum cylinder was used as a heater in the experiment. The diameter and effective length of the platinum cylinder were 1.0 and 25.9 mm, respectively. The cylinder was heated by a DC power supply until the nucleate boiling regime in liquid D-mannitol was reached. The temperature of the liquid D-mannitol ranged from 455 to 502 K. The e-folding time of the heat generation rate ranged from 0.35 to 19 s. The incipient boiling heat flux was dependent on the e-folding time of the heat generation rate, whereas the transient nucleate boiling heat transfer was not affected by the e-folding time of the heat generation rate. From the experimental data, the correlations of the incipient heat flux and the transient heat transfer coefficient were obtained.