NDLI: Compactness factors for rolled, stacked-screen regenerators

Content Provider	IEEE Xplore Digital Library
Author	Murphy, T. Bowman, W.J.
Copyright Year	1996
Description	Author affiliation: Air Force Inst. of Technol., Wright-Patterson AFB, OH, USA (Murphy, T.)
Abstract	The objective for the research was to determine how the heat transfer and pressure drop characteristics changed in a stacked, wire-screen regenerator, if the screens which were used to construct the matrix were rolled to decrease their thickness, thereby reducing the volume of the regenerator. Reducing the "dead volume" for regenerative refrigeration cycles was the ultimate motivation for this research. The results show the compactness factor (j/sub H//f) is adversely affected by rolling. Flattening the screens by 15, 30, or 50%, does not cause a new mechanism for heat transfer to be introduced to the matrix, but it does increase the total pressure drop. Rolling the screens causes a decrease in both wetted surface area and pore size, hence, surface phenomena like heat transfer are reduced, but, the inertial pressure drop increases. The effectiveness of the regenerator is also reduced by rolling the screens.
Starting Page	1873
Ending Page	1878
File Size	431863
Page Count	6
File Format	PDF
ISBN	0780335473
ISSN	10893547
DOI	10.1109/IECEC.1996.553388
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-08-11
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Heat transfer Testing Wire Friction Space technology Refrigeration Extraterrestrial measurements Radio frequency Electron microscopy
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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