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Design And Testing Of A Superfluid Liquid Helium Cooling Loop
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Book Synopsis Design and Testing of a Superfluid Liquid Helium Cooling Loop by :
Download or read book Design and Testing of a Superfluid Liquid Helium Cooling Loop written by and published by . This book was released on 1989 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper describes the design and preliminary testing of a cryogenic cooling loop that uses a thermomechanical pump to circulate superfluid liquid helium. The cooling loop test apparatus is designed to prove forced liquid helium flow concepts that will be used on the Astromag superconducting magnet facility. 3 refs., 2 figs.
Book Synopsis Design and Testing of a Superfluid Liquid Helium CoolingLoop by :
Download or read book Design and Testing of a Superfluid Liquid Helium CoolingLoop written by and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper describes the design and preliminary testing of a cryogenic cooling loop that uses a thermomechanical pump to circulate superfluid liquid helium. The cooling loop test apparatus is designed to prove forced liquid helium flow concepts that will be used on the Astromag superconducting magnet facility.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1992 with total page 1572 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Design and Test of a 1.8K Liquid Helium Refrigerator by : Daniel W. Hoch
Download or read book Design and Test of a 1.8K Liquid Helium Refrigerator written by Daniel W. Hoch and published by . This book was released on 2004 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advances in Cryogenic Engineering by : R.W. Fast
Download or read book Advances in Cryogenic Engineering written by R.W. Fast and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 1793 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 1989 Cryogenic Engineering Conference, meeting jointly with the International Cryogenic Materials Conference, was held on the campus of the University of California, Los Angeles from July 24 to 28. Professor T.H.K. Frederking was the conference chairman. The Conference had previously met at U.C.L.A. in 1962 and 1969. A special symposium, "A Half Century of Superfluid Helium," was a significant part of the program of CEC-89. We were especially fortunate to have Professor Jack Allen of the University of St. Andrews, Scotland present at the Conference; his paper, "Early Superfluidity in Cambridge, 1936 to 1939," was a delightful, often humorous account of the early experimental work with superfluid helium. Professors V.L. Ginzburg and J.L. Olesen could not be present for the Symposium, but provided papers which are published in these proceedings. The late Bill Fairbank, responding graciously to a last-minute invitation from Professor Frederking, presented a wonderful account of superfluid research in the United States in the post-war years.
Book Synopsis Sub-cooled Liquid Helium Flow Supply for Design D Magnet Cooling at MDTF. [Magnet Development and Test Facility]. by :
Download or read book Sub-cooled Liquid Helium Flow Supply for Design D Magnet Cooling at MDTF. [Magnet Development and Test Facility]. written by and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The parameters of the subcooled 4ATM helium flow from MTDF refrigerator and helium subcooler proposed to cool the SSC Design 'D' magnet is discussed. The system operating parameters are pressure - 4ATM and temperature - 4.35K. The higher than normal operating pressure is obtained by shutting down the cold turbine (T2) of MTDF refrigerator, and then not J-T the high pressure dense helium gas until after the magnet and liquid return line. The resultant helium temperature at the refrigerator outlet is described and the heat transfer tube length of the subcooler required to cool the flow to the ultimate desired temperature is evaluated.
Book Synopsis Liquid Helium Technology by : Sam Stuart
Download or read book Liquid Helium Technology written by Sam Stuart and published by Elsevier. This book was released on 2014-12-03 with total page 559 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pure and Applied Cryogenics, Volume 6: Liquid Helium Technology focuses on the principles, techniques, methodologies, and approaches involved in liquid helium technology. The selection examines liquid helium technology at the National Bureau of Standards, properties of liquid helium, heat transfer to liquid helium, and noise associated with heat transfer to liquid helium II. Discussions focus on apparatus and instrumentation, test procedure, liquid helium as a cryogenic liquid, zero viscosity, momentum of heat flow, rotation and vortex lines, oscillation of vortex lines, and quantized vortices. The publication then takes a look at boiling heat transfer to liquid helium, heat transfer from metal to supercritical helium, heat transfer to boiling liquid helium in narrow vertical channels, and critical nucleate boiling of liquid helium in a simulated wire wound magnet. The text ponders on microdegree temperature controller for liquid helium II bath, commercial production, storage and distribution of liquid helium, lightweight liquid helium dewar, commercial handling of liquid helium dewars, effectiveness of low temperature refrigeration for electronics, and a bulk liquid helium distribution system. The selection is a valuable source of information for scientists and researchers interested in liquid helium technology.
Book Synopsis Large Space Structures & Systems in the Space Station Era by :
Download or read book Large Space Structures & Systems in the Space Station Era written by and published by . This book was released on 1990 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Commissioning a Helium II Test Facility at SLAC. by :
Download or read book Commissioning a Helium II Test Facility at SLAC. written by and published by . This book was released on 2004 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Liquid helium is the only fluid that exhibits the unique properties characteristic of a superfluid when cooled to temperatures near absolute zero. This superfluid helium state is commonly referred to as He II. Among the many odd properties are a vanishingly small viscosity and a high effective thermal conductivity. A He II test facility will provide researchers in the Experimental Facilities Department at SLAC with the opportunity to do research in the superfluid range with relative ease. The nature of this project is to test the functionality of the existing helium components in the cryogenics lab and recommend improvements. The basic experimental setup consisted of a helium dewar, a vacuum pump system, and a network of sensors. After adding liquid helium into the dewar and turning on the vacuum pump, we observed that the pump was able to reduce the pressure down comfortably into the superfluid state. Furthermore, by adding heat to the fluid in set increments we learned what amount of heat could be added while still keeping the helium in the superfluid range. Our final test was to see if we had the ability to change the pressure via the MKS exhaust valve controller. The controller failed miserably and was found to be inadequate for the type of experiments to be done. Among the other recommended improvements were: adding isolation valves to the vacuum pump line, erecting a supply line for clean helium gas, incorporating a relief valve in the helium recovery line, and documenting the existing vent and vacuum lines. Once these improvements are made, the He II test facility should be up and running, allowing researchers to dive as deep as they please into the superfluid state.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1988 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1993 with total page 1448 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1973 with total page 1256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1967 with total page 866 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1990 with total page 1044 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis High Reynolds Number Flows Using Liquid and Gaseous Helium by : Russell J. Donnelly
Download or read book High Reynolds Number Flows Using Liquid and Gaseous Helium written by Russell J. Donnelly and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 283 pages. Available in PDF, EPUB and Kindle. Book excerpt: Liquid helium has been studied for its intrinsic interest through much of the 20th century. In the past decade, much has been learned about heat transfer in liquid helium because of the need to cool superconducting magnets and other devices. The topic of the Seventh Oregon Conference on Low Temperature Physics was an applied one, namely the use of liquid and gaseous helium to generate high Reynolds number flows. The low kinematic viscosity of liquid helium automatically makes high Reynolds numbers accessible and the question addressed in this conference was to explore various possibilities to see what practical devices might be built using liquid or gaseous helium. There are a number of possibilities: construction of a wind tunnel using critical helium gas, free surface testing, low speed flow facilities using helium I and helium ll. At the time of the conference, most consideration had been given to the last possibility because it seemed both possible and useful to build a flow facility which could reach unprecedented Reynolds numbers. Such a device could be useful in pure research for studying turbulence, and in applied research for testing models much as is done in a water tunnel. In order to examine these possibilities in detail, we invited a wide range of experts to Eugene in October 1989 to present papers on their own specialties and to listen to presentations on the liquid helium proposals.
Download or read book INIS Atomindex written by and published by . This book was released on 1995 with total page 718 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fusion Energy Update written by and published by . This book was released on 1980 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: