Share

IIR document

PROGRESS IN THE DEVELOPMENT OF A MANUFACTURING PROCESS FOR A COMPACT, LAMINAR-FLOW CRYOGENIC HEAT EXCHANGER.

Author(s) : DOTY F. D., SPITZMESSER J. B.

Summary

A UNIQUE HEADER ARRANGEMENT AND EXCHANGER MANUFACTURING PROCESS IS BEING DEVELOPED THAT ALLOWS THE ECONOMIC PARALLEL MANIFOLDING OF MILLIONS OF SHORT STAINLESS STEEL MICROTUBES WITH OUTSIDE DIAMETERS BELOW 0.6 MILLIMETER IN COMPACT COUNTERFLOW EXCHANGERS (EFFECTIVENESS ABOVE 99.5% FOR BOTH NITROGEN AND HELIUM). RELATIVE PRESSURE DROPS SMALLER THAN 0.02% HAVE BEEN MEASURED UNDER HIGH-PRESSURE LAMINAR-FLOW CONDITIONS. THE MODULAR MICROTUBE DESIGN IS SHOWN TO OFFER ADVANTAGES IN DIVERSE APPLICATIONS FROM 20-1,000 K. TEST DATA ARE REPORTED ALONG WITH ANALYSES OF FLOW INHOMOGENEITY. THE INTENDED INITIAL APPLICATION FOR THIS COMPACT HEAT EXCHANGER IS IN REVERSE BRAYTON CYCLE CRYOCOOLER RECUPERATORS. PRELIMINARY PERFORMANCE RESULTS OF REVERSED BRAYTON CYCLE CRYOCOOLER ARE REPORTED.

Available documents

Format PDF

Pages: 275-279

This document is to be digitised and will be available within 10 working days

  • Public price

    20 €

  • Member price*

    Free

* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).

Details

  • Original title: PROGRESS IN THE DEVELOPMENT OF A MANUFACTURING PROCESS FOR A COMPACT, LAMINAR-FLOW CRYOGENIC HEAT EXCHANGER.
  • Record ID : 1992-2024
  • Languages: English
  • Source: New challenges in refrigeration. Proceedings of the XVIIIth International Congress of Refrigeration, August 10-17, 1991, Montreal, Quebec, Canada.
  • Publication date: 1991/08/10
  • Document available for consultation in the library of the IIR headquarters only.

Links


See other articles from the proceedings (391)
See the conference proceedings

Indexing