Experimental investigations of He II heat transfer through a short section of LHC inner triplet quadrupole heat exchanger

The LHC inner triplet quadrupoles, cooled by pressurized He II, are subjected to a total heat load of more than 7 W/m at nominal luminosity. The heat absorbed in pressurized He II will be transferred to the saturated, two-phase He II via a corrugated copper pipe. Experimental investigations of He II...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2001-03, Vol.11 (1), p.1629-1632
Main Authors: Darve, Ch, Huang, Y., Nicol, T.H., Peterson, T.J.
Format: Article
Language:English
Subjects:
Applied sciences
Conducting materials
Copper
Corrugating
Electrical engineering. Electrical power engineering
Electromagnets
Electrostatic, collective, and linear accelerators
Exact sciences and technology
Experimental methods and instrumentation for elementary-particle and nuclear physics
Geometry
Heat transfer
Helium
Kapitza resistance
Large Hadron Collider
Luminosity
Nuclear physics
Physics
Pipe
Quadrupoles
Superconductivity
Temperature
Testing
Thermal conductivity
Thermal resistance
Various equipment and components
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The LHC inner triplet quadrupoles, cooled by pressurized He II, are subjected to a total heat load of more than 7 W/m at nominal luminosity. The heat absorbed in pressurized He II will be transferred to the saturated, two-phase He II via a corrugated copper pipe. Experimental investigations of He II heat transfer across the corrugated pipe are reported. The test sample of corrugated pipe is filled with pressurized He II and with saturated He II on the outside. The maximum heat flux to the test sample is up to 145 W/m/sup 2/. The characteristics of the corrugated copper pipes under investigation are the Kapitza resistance, thermal conductivity of the material and the geometry of the pipe. The test results for a series of bath temperatures and surface treatments are included.
ISSN:1051-8223
1558-2515
DOI:10.1109/77.920092