Boiling heat transfer characteristics of liquid xenon
Boiling heat transfer characteristics of liquid xenon
复制标题
液氙沸腾传热特性
DOI：
10.1063/1.1472183
复制
发表时间：
2002
期刊：
影响因子：
--
通讯作者：
T. Haruyama
中科院分区：
文献类型：
--
作者：
T. Haruyama
液体氙气是高能粒子量热计的优良介质之一。为了有效地探测闪烁光，需要将大量的光电倍增器(PMT)浸入液体氙气中。许多带有PMT的片式电阻器在一定的工作条件下会将热量散失到液体中，并可能产生气泡、对流等热湍流。然而，在文献中没有热传递曲线(Q-ΔT曲线)。利用小型脉冲管制冷机首次测量了0.1 Mpa饱和压力下液态氙气的沸腾换热特性。换热面为直径0.1 mm、长25 mm的铂丝细丝。在自然对流和核态沸腾条件下，测量结果与计算值吻合较好。由于膜沸腾状态的重现性较差，很难获得，并且只获得了一个数据。给出了热流密度Q与温差的关系。
Liquid xenon is one of the excellent media for high-energy particle calorimeter. In order to detect a scintillation light effectively, a large number of photo-multipliers (PMTs) will be immersed in liquid xenon. Many chip-resistors equipped with the PMTs dissipate heat into liquid and possibly generate thermal turbulence, such as bubbles, convection flow under a certain operating condition. There is, however, no heat transfer curve (q-ΔT curve) in the literature. Boiling heat transfer characteristics of liquid xenon were measured at a saturated pressure of 0.1 MPa for the first time by using a small pulse tube refrigerator. The heat transfer surface is a thin platinum wire of 0.1 mm diameter and 25 mm long. The measured results were in good agreement with the calculated values both in natural convection and nucleate boiling condition. The film boiling state was difficult to obtain due to its poor reproducibility, and only one data was obtained. The relationship between the heat flux q and temperature diff...