Results 121 to 130 of about 45,302 (169)
Some of the next articles are maybe not open access.
1997
In the late 1970's, Vickers, Inc., recognized that their methods of establishing petroleum based fluid recommendations had become inadequate. They provided poor correlation with the field results in the higher pressure and higher speed pumps that had been developed for the mobile hydraulics market.
HT Johnson, TI Lewis
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In the late 1970's, Vickers, Inc., recognized that their methods of establishing petroleum based fluid recommendations had become inadequate. They provided poor correlation with the field results in the higher pressure and higher speed pumps that had been developed for the mobile hydraulics market.
HT Johnson, TI Lewis
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Test of Coal Slime Pumping by Single-Screw Pump
Advanced Materials Research, 2013Previous research on thick pastes such as coal slime was using two-cylinder piston pump as power equipment.Since the pressure fluctuation was big,flow measurement was not that accurate. In order to solve the problem, this paper will presents a feasibility study on conveying coal slime by single-screw pump. We used a single-screw pump as power equipment
Hua Xu Yang +4 more
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Testing of turbomolecular pumps
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, 1992Turbomolecular pumps (TMPs) are used to provide clean pumping to attain pressures down into the 10−10 Torr range. Some of our data indicated that the pumping speeds and compression ratios claimed by some manufacturers of TMPs were greatly overstated. To measure these parameters, an apparatus was constructed following AVS recommended practices. Hydrogen,
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Inspection and Testing of Infusion Pumps
2017Infusion pumps are ME (Medical Electrical) devices intended to regulate the intravenous flow of liquids through a positive pressure generated by the pump itself. Infusion pumps are used in all those wards where patients need life support and a proper nutrition.
IADANZA, ERNESTO +2 more
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Drill Stem Testing with Jet Pump
SPE Latin America Petroleum Engineering Conference, 1990ABSTRACT While DST is not new to the oil industry, some of the methods of augmenting flow are changing. One of the more recent changes to be accepted is the use of the Jet Pump to improve producing capabilities and make DST more meaningful and more accurate.
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Testing of pumping speed of miniature sputtering ion pump
2010 8th International Vacuum Electron Sources Conference and Nanocarbon, 2010This paper discusses about testing of pumping speed. A sputtering ion pump consists basically of two electrodes, anode and cathode, and a magnet. The method for testing pumping speed is called dynamic flow conductance.
null Tian Liang +2 more
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Journal of Engineering for Power, 1968
Research on pumps, particularly those for transporting cryogenic fluids, is very expensive. Rocketdyne has tested pumps with air as the working fluid and has found that a very good correlation exists between air test data and liquid test data. This paper gives a description of the air rigs used by Rocketdyne and compares the data taken in air with data
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Research on pumps, particularly those for transporting cryogenic fluids, is very expensive. Rocketdyne has tested pumps with air as the working fluid and has found that a very good correlation exists between air test data and liquid test data. This paper gives a description of the air rigs used by Rocketdyne and compares the data taken in air with data
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2016
The analytical solutions given in the first chapters (see Chaps. 1– 6) described pumping tests, involving a single pumping well with a constant discharge rate. This chapter gives basic relationships for calculating the drawdown in aquifers at (1) multi-well pumping tests with constant or variable discharge rates (Sects.
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The analytical solutions given in the first chapters (see Chaps. 1– 6) described pumping tests, involving a single pumping well with a constant discharge rate. This chapter gives basic relationships for calculating the drawdown in aquifers at (1) multi-well pumping tests with constant or variable discharge rates (Sects.
openaire +1 more source