Abstract
This paper presents results of an experiment which decouples the liquid counterflow component from the evaporative component of heat transfer in the two-phase He II system. Two baths, partially filled with He II, are connected by a vapor tube at the top and a liquid tube at the bottom. Temperature and liquid level differences between the two baths are measured as a function of heat input into one bath while temperature of the other bath is held constant. A copper porous plug with 30,576 parallel channels of length 1.29 cm and diameter 30 μm is inserted in the bottom tube, which partially restricts flow of the normal fluid component. The liquid level height difference between the two baths is governed by the thermomechanical effect and saturated pressure differences. A numerical model of the combined modes of heat transport is able to predict temperature and liquid level differences accurately. A properly sized porous plug will not restrict heat flow and can reduce the undesirable liquid level differences between components at different temperatures.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
Similar content being viewed by others
References
G. Horlitz, T. Peterson, and D. Trines, A 2 Kelvin Helium II Distributed Cooling System for the 2 × 250 GeV e+e- Linear Collider TESLA, Cryogenics 1994 Vol 34 ICEC Supplement
J. Panek, X. Huang, and S. W. Van Sciver, Heat and Mass Transfer in Two-Phase Helium II, Proc. 1996 ASME Winter Annual Meeting
J. B. Hendricks, Alabama Cryogenic Engineering (private communication)
S.W. Van Stiver, X. Huang, and J. Panek, Heat and Mass Transfer Processes in Connected Saturated He II Baths, submitted for publication in Cryogenics
Streeter V. L. and Wylie E. B., 1958, Fluid Mechanics, McGraw-Hill Book Company, NY pp. 294–295.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1998 Springer Science+Business Media New York
About this chapter
Cite this chapter
Panek, J., Zhao, Y., Van Sciver, S.W. (1998). Liquid Level Control Using a Porous Plug in a Two-Phase He II System. In: Kittel, P. (eds) Advances in Cryogenic Engineering. Advances in Cryogenic Engineering, vol 43. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-9047-4_175
Download citation
DOI: https://doi.org/10.1007/978-1-4757-9047-4_175
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4757-9049-8
Online ISBN: 978-1-4757-9047-4
eBook Packages: Springer Book Archive