3 edition of BASG thermomechanical pump helium II transfer tests found in the catalog.
BASG thermomechanical pump helium II transfer tests
G. L. Mills
by National Aeronautics and Space Administration, Ames Research Center, For sale by National Technical Information Service in Moffet Field, Calif, [Springfield, Va
Written in English
|Statement||G.L. Mills, D.A. Newell, A.R. Urbach.|
|Series||NASA contractor report -- 177541., NASA contractor report -- NASA CR-177541.|
|Contributions||Urbach, A. R., Newell, D. A., Ball Corporation. Aerospace Systems Division., Ames Research Center.|
|The Physical Object|
|Pagination||vii, (various pagings)|
Unique feature of the pump is the matching of the leakage flow rate past the pistons to the flow rate required for pressurized expulsion of the liquid helium from the storage dewar Liquid Helium Pump Flow rate increased through double-action (forward and backward) reciprocating piston pump driven by a linear motor mounted on a frame and. Peristaltic pumps are the top choice for high purity systems. The pump works on the exterior of a flexible piece of tubing. This means there is a straight flow path for the fluid, it never leaves the tubing, and the fluid contact piece can be cleaned, sterilized, or replaced easily.
The joint Cryogenic Engineering Conference/International Cryogenic Materials Conference was held at the Pheasant Run Resort, St. Charles, lliinois from June 14 to Fermi National Accelerator Laboratory, located a few kilometers from Pheasant Run, was the host for this conference. There is a. AUNITEDSTATES DEPARTMENTOF COMMERCE PUBLICATION v+ NationalBureauofStandards H1*^rNBSTECHNICALNOTE APR2 NationalBureauofStandards Library, OCT6 qc joo U57Q lV-O/ U.S. >EPARTMENT OF COMMERCE National BureauFile Size: 8MB.
Operational Characteristics of Loops with Helium II Flow Driven by Fountain Effect Pumps.- Performance Test of a Laboratory Pump for Liquid Transfer Based on the Fountain Effect.- Lab Tests of a Thermomechanical Pump for Shoot.- Experiments on Transferring Helium II with a Thermomechanical Pump.- Characterzation of a Centrifugal Pump in He II Leak detection techniques Helium Leak Testing Techniques for Industry Dr Graham Rogers. save space Why is Helium a good Test Gas? Low concentration in air, only 5 ppm, so low natural background 4 Helium 5 Auxiliary Pump System 3. save space File Size: KB.
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A series of experiments were performed to demonstrate that large volumes of Helium 2 can be transferred with a thermomechanical pump at high flow rates and at high efficiency from one dewar to another through valves and lines that are similar to the plumbing arrangement that would be necessary to accomplish such a transfer on-orbit.
test (September ) was only partially successful. The thermomechanical pumps transferred Helium II from one dewar to another and back, and a warm tank was cooled and filled using a thermomechanical pump.
However, the flow rate was much lower than expected, 90 liters/hour, instead of the goal of liters/hour. There were also. Get this from a library. BASG thermomechanical pump helium II transfer tests.
[G L Mills; A R Urbach; D A Newell; Ball Corporation. Aerospace Systems Division.; Ames Research Center.]. Part of the A Cryogenic Engineering Conference Publication book series (ACRE, volume 33) Abstract Porous plugs were used as thermomechanical pumps to transfer helium II from one dewar to another through a transfer line and two by: 9.
BASG thermomechanical pump helium II transfer tests [microform] / G.L. Mills, D.A. Newell, A.R. Urbach; Helium resources of the United States, [microform] / by Richard D. Miller and John E. Hamak; Superfluid helium sloshing dynamics induced oscillations and.
BASG thermomechanical pump helium II transfer tests [microform] / G.L. Mills, D.A. Newell, A.R. Urbach; Thermal conductance of augmented pressed metallic contacts at liquid helium temperatures [microform] / L Helium resources of the United States, [microform] /. Laboratory tests of a thermomechanical (TM) pump utilizing a commercially available porous disk have been conducted.
Various size disks, heater configurations and outlet flow impedances have been used to characterize scale models of the pump proposed for the Superfluid Helium On-Orbit Transfer (SHOOT) Flight by: 9.
Mills. Ball Corporation BASG thermomechanical pump helium 2 transfer tests. Article. Apr ; Experiments on Transferring Helium II with a Thermomechanical Pump.
Article. An experimental test loop for studying cooling by forced flow helium II driven by a thermomechanical pump has been operated over an extended period.
Most of the results have been described earlier1, 2, 3. Here we offer additional results which did not fit into the frames of earlier publications but which are believed to contain valuable data even when they are not understood in all by: 1.
INTRODUCTION While the thermomechanical (TM) effect has been known for more than 50 years and laboratory scale TM pumps have been used in a variety of experiments, recently attention has been focused on use of large scale thermomechanical pumping as a means of transferring superfluid helium (He II) between dewars in space.1_^ A TM pump is Cited by: Chapter Prototype Refrigerator for Subcooled Superfluid Helium at K.
Design and Tests Chapter Transient Heat Transfer into Superfluid Helium under Confined Conditions Chapter He II Active Phase Separator Suitable for Space Qualification Chapter Heat Transfer to Forced Flow Helium II Chapter Helium II Heat Transfer in a Book Edition: 1. The helium urification system can keep the purity of helium for p 5% and has a storage capacity of Nm.
3 (including impure helium and pure helium) MPa. The simplifiedat 20 process scheme of the purification system is in Fig.1, which includes gas bag, compressor, coalescing filters, dryer, helium purifier and high pressure cylinder.
Novel technologies and configurations of superconducting magnets for MRI. Yuri Lvovsky 1, Kasthurirengan S and Hofmann A Response to transient heat load in a helium II loop operated with a self-driven thermomechanical pump Cryogenics 38 –7.
Crossref Google by: II. Vacuum Testing (outside-in) can be carried out in two ways depending on the TP. The TP (if it is of smaller volume) is evacuated directly by the leak detector.
If the TP is of large volume, it is additionally evacuated by a separate vacuum pump. (a) In the spray-probe mode, a gas gun (connected to a helium. The Hyatt Regency Hotel, Columbus, Ohio was the venue for the Cryogenic Engineering Conference.
The meeting was held jointly with the International Cryogenic Materials Conference. Jim Peeples, of CVI, Inc., was conference chairman. Columbus is the home of the Battelle Memorial Institute, a.
High Efficiency Pump for Space Helium Transfer Robert Hasenbein, Michael G. Izenson, Walter L. Swift, and Herbert Sixsmith Creare Inc. P.O. Box 71 Hanover, NH Prepared for Ames Research Center CONTRACT NAS December NationalAeronautics and Space Administration Ames Research Center MoffettField,California General procedures for transferring liquid helium Richard A.
Chamberlin Caltech Submillimeter Observatory Last update: Ap 1. Use an inexpensive vacuum grease (e.g. Dow) to grease the transfer tube so it seals well and slides easily on its o-ring seal.
If the transfer tube has an extension on the intake side make sure it is tight. Size: 23KB. Upscaling of superfluid helium flow in porous media Article in International Journal of Heat and Mass Transfer 53(21) October with 94 Reads How we measure 'reads'. This is a brief description of the workings and demonstration of Helium pumps within the game.
Thanks to Pladimir Vutin for suggesting this video to be created. trifugalheliumpumpdesignedforflowsuptoZ.5x10 m/s(4gpm) with atotal dynamic head of15 meters, characteristics which may be useful for various superconductor applications where forcedflowcoolingFile Size: 4MB. Industrial & Scientific Lab Test & Measurement Safety Janitorial & Facilities Food Service Education Material Handling Materials Metalworking Electrical FSA Eligible Items Deals PMU Helium Tank Regulator Filler Valve for Balloons with Gauge Pkg/1 $ In /5(35).Helium / Nitrogen Boosters Systems Haskel Helium / Nitrogen Gas Booster System centers around a Haskel 8” Drive Air driven Gas ing high pressure and high flows of gas to enable optimum completion of the task in hand.
The system is designed compress helium .tests. In addition, pump-down and rate of rise tests will not locate leaks, but will only indicate the cumulative effect of all leaks (real and virtual) combined.
If a real leak is indicated or suspected, the use of a helium leak detector is usually the next step. Helium Leak Detection Basic principle of helium .