STI Publications - View Publication Form #14157
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Publication Information
Title | Modifications to JLab 12 GeV Refrigerator and Wide Range Mix Mode Performance Testing Results | ||||
Abstract | Analysis of data obtained during the spring 2013 commissioning of the new 4.5-K refrigeration system at Jefferson Lab (JLab) for the 12 GeV upgrade indicated a wide capacity range with good efficiency and minimal operator interaction. Testing also showed that the refrigerator required a higher liquid nitrogen (LN) consumption for its pre-cooler than anticipated by the design. This does not affect the capacity of the refrigerator, but it does result in an increased LN utility cost. During the summer of 2015 the modifications were implemented by the cold box manufacturer, according to a design similar to the JLab 12 GeV cold box specification. Subsequently, JLab recommissioned the cold box and performed extensive performance testing, ranging from 20% to 100% of the maximum capacity, and in various modes of operation, ranging from pure refrigeration, pure liquefaction, half-and-half mix mode and at selected design modes. This testing demonstrated the modifications resulted in a LN co | ||||
Author(s) | Peter Knudsen, Venkatarao Ganni, Nusair Hasan, Kelly Dixon, Robert Norton, Jonathan Creel | ||||
Publication Date | March 2017 | ||||
Document Type | Meeting, Proceedings | ||||
Primary Institution | Thomas Jefferson National Accelerator Facility, Newport News | ||||
Affiliation | Accelerator Ops, R&D / Engineering / Cryogenics | ||||
Funding Source | Nuclear Physics (NP) | ||||
Proprietary? | No | ||||
This publication conveys | Technical Science Results | ||||
Document Numbers |
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Associated with an experiment | No | ||||
Associated with EIC | No | ||||
Supported by Jefferson Lab LDRD Funding | No |
Meeting / Conference
Meeting Name | 26th International Cryogenic Engineering Conference |
Meeting Date | 3/7/2016 |
Document Subtype | Invited Talk (proceedings) |
Proceedings
Title | Materials Science and Engineering |
Editor(s) | |
Publisher | IOP Publishing |
Refereed | No |
Page Number | 171 |
Year | 2016 |
Attachments/Datasets/DOI Link
Document(s) |
Mod to JLab 12 GeV Refrigerator and Wide Range Mix Mode Performance Testing Results (Abstract) - 2.docx
(STI Document)
Mod to JLab 12 GeV Refrigerator and Wide Range Mix Mode Performance Testing Results (8-O-1A-IT1).pdf
(Supporting)
Knudsen_2017_IOP_Conf._Ser.__Mater._Sci._Eng._171_012015.pdf
(Accepted Manuscript)
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DOI Link | |
Dataset(s) | (none) |
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