[Jlabsa_gs] Pizza Seminar - Wednesday, March 26, 2014 - A message from Hari Areti
Jodi Patient
patient at jlab.org
Fri Mar 21 08:08:35 EDT 2014
Jefferson Lab's Graduate Student and Post-Doc Association Wiki:
https://gspda.jlab.org/wiki/index.php/Main_Page
Please RSVP to: patient at jlab.org by COB on March 24, 2014
Wednesday, March 26, 2014
***Auditorium***
12:00-1:00 pm
"Development and Advances in Cryogenic System Design at JLab"
Peter Knudsen
Jefferson Lab
Abstract: Significant process and engineering advances in cryogenic systems
have been realized by JLab’s cryogenic group. Although these advancements
have benefited the users, they remain largely unknown to them. These advances
have significantly improved the efficiency and flexibility of these systems,
for JLab and other labs, to allow the cryogenic support of physics that would
otherwise not be possible technically and within fiscal constraints. The vision
for this proactive effort was carried internally, based on the conviction to be
good stewards to our environment and taxpayer funding, and that cryogenic
engineering is an art with great potential for technical advancement and innovation.
Advancements due to the group’s self-directedness have been implemented at the
Spallation Neutron Source, Brookhaven National Lab, as well as, internal projects
such as the recovery heat exchanger for Hall C’s Q-weak experiment and improvements
at the Cryogenic Test Facility (CTF). The latest of these efforts has been focused
on the new Central Helium Liquefier (CHL-2) for the 12 GeV upgrade, the new
refrigerator for Michigan State University’s FRIB project and Johnson Space Center’s
new 20 K refrigerator. The group continues to pursue advancements in the areas of
small and medium size 2 K (sub-atmospheric) cost effective and efficient helium
refrigeration processes, as well as, refrigeration cold end advances and warm
compressor efficiency improvements.
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