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US 4301863. Heat exchanger closure bar construction

✍ Scribed by Peter Bizzarro


Publisher
Elsevier Science
Year
1982
Weight
84 KB
Volume
2
Category
Article
ISSN
0198-7593

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Heat exchangers in cryogenic refrigerators must meet conflicting requirements for high thermal efficiency and low frictional pressure drops. This is particularly true in helium II refrigerators where the gas stream leaves the cold source at 15 mbar. Perforated-plate heat exchangers are likely to off