Download or read book Cost effective Use of Liquid Nitrogen in Cryogenic Wind Tunnels Phase 2 written by and published by . This book was released on 1990 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cost Effective Use of Liquid Nitrogen in Cryogenic Wind Tunnels Phase 2 written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-08 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cryogenic seal tests were performed and Rulon A was selected for the subject nutating positive displacement expander. A four-chamber expander was designed and fabricated. A nitrogen reliquefier flow system was also designed and constructed for testing the cold expander. Initial tests were unsatisfactory because of high internal friction attributed to nutating Rulon inlet and outlet valve plates. Replacement of the nutating valves with cam-actuated poppet valves improved performance. However, no net nitrogen reliquefaction was achieved due to high internal friction. Computer software was developed for accurate calculation of nitrogen reliquefaction from a system such as that proposed. These calculations indicated that practical reliquefaction rates of 15 to 19 percent could be obtained. Due to mechanical problems, the nutating expander did not demonstrate its feasibility nor that of the system. It was concluded that redesign and testing of a smaller nutating expander was required to prove concept feasibility. Mcintosh, Glen E. and Lombard, David S. and Leonard, Kenneth R. and Morhorst, Gerald D. Unspecified Center...
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1991 with total page 1460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Download or read book Cost Effective Use of Liquid Nitrogen in Cryogenic Wind Tunnels written by and published by . This book was released on 1987 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cryogenic Wind Tunnels A Comprehensive Annotated Bibliography written by Marie H. Tuttle and published by . This book was released on 1991 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1991 with total page 934 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Airborne Lidar Experiments at the Savannah River Plant written by William B. Krabill and published by . This book was released on 1987 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aeronautical Engineering written by and published by . This book was released on 1992 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt: A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA).
Download or read book Journal of Research of the National Bureau of Standards written by United States. National Bureau of Standards and published by . This book was released on 1977 with total page 1046 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Download or read book Cryogenic Wind Tunnels written by Marie H. Tuttle and published by . This book was released on 1985 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Download or read book Aeronautical Engineering A Cumulative Index to a Continuing Bibliography supplement 274 written by and published by . This book was released on 1992 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Annual Index written by and published by . This book was released on 1991 with total page 1654 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Special Course on Advances in Cryogenic Wind Tunnel Technology written by and published by . This book was released on 1989 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt:
