کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1507730 | 993927 | 2012 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Effect of the connection gap on the heat-load characteristics of a liquid nitrogen bayonet coupling Effect of the connection gap on the heat-load characteristics of a liquid nitrogen bayonet coupling](/preview/png/1507730.png)
A transfer system for liquid nitrogen (LN2) installed at National Synchrotron Radiation Research Center (NSRRC) to provide LN2 required for the superconducting equipment and experimental stations has a LN2 transfer line of length 160 m and pipeline of inner diameter 25 mm, a phase separator (250 L) and an automatic filling station. The end uses include two cryogenic systems, one Superconducting Radio Frequency (SRF) cavity, five superconducting magnets, monochromators for the beam line and filling of mobile Dewars. The transfer line is segmented and connected with bayonet couplings. The aim of this work was to investigate, by numerical simulation, the effects on the heat load of the gap thickness of the bayonet assembly and the thickness of vacuum insulation. A numerical correlation was created that has become a basis to minimize the head load for future design of bayonet couplings.
Journal: Cryogenics - Volume 52, Issue 12, December 2012, Pages 674–678