Dynamics of a closed-loop thermosyphon incorporating thermal storage

被引:11
作者
Benne, K. S. [1 ]
Homan, K. O. [1 ]
机构
[1] Missouri Univ Sci & Technol, Dept Mech & Aerosp Engn, Rolla, MO 65409 USA
关键词
D O I
10.1080/10407780802084553
中图分类号
O414.1 [热力学];
学科分类号
摘要
The coupling between a natural-convection thermosyphon loop and a thermal storage device is analyzed numerically for a charging process in which energy is added to the system at a fixed rate. Since energy accumulates in the storage component, the driving buoyant force is continually altered and the behavior is inherently transient. The undesirable consequence is a less than uniform charge of the storage volume. Relevant dimensionless parameters are identified which enable improvement in the shape of the charge profile. The results indicate that a more uniform charge profile is obtained by targeting the frictional losses to a flow regime most strongly proportional to flow rate and by decreasing the relative vertical height over which heat input occurs.
引用
收藏
页码:235 / 254
页数:20
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