Principles of Centrifugal Process Pumps

Pump Wisdom ◽  
2011 ◽  
pp. 1-14
Keyword(s):  
Centrifugal Process

Numerical Simulation of a Centrifugal Process to Fabricate Permittivity Graded FGM from Alumina/Epoxy Mixture

2005 ◽  
Vol 492-493 ◽  
pp. 459-464 ◽  
Author(s):  
Shin-ichiro Tsuru ◽  
Noriyuki Hayashi ◽  
Tomohiko Onoda ◽  
Yasushi Sakamoto ◽  
Masanori Hara
Keyword(s):  
Reasonable Agreement ◽  
Simulation Method ◽  
Packing Fraction ◽  
Functionally Graded ◽  
Solid Particles ◽  
Number Density ◽  
Graded Materials ◽  
Filler Size ◽  
Centrifugal Process ◽  
Filler Distribution

A new numerical method to simulate the centrifugal process of fabricating functionally graded materials (FGMs) from solid-particles/viscous-matrix mixtures is proposed, and the simulation method was successfully applied to a practical fabrication process of FGM from an alumina-fillers/epoxy-resin mixture. Gradient profiles of dielectric constant of the resultant FGM were estimated by using the proposed method and compared with the experimental ones, resulting in reasonable agreement between them. Based on the numerical results, gradient pro- files of the number density and size of the dispersed fillers were confirmed, and contribution of the filler size toward the gradient in the packing fraction was demonstrated. It is concluded that the gradient in the filler distribution can be intentionally regulated by changing not only the centrifugal conditions, but also the size distribution of the fillers.

Contamination of Centrifugal Process Gas Compressor Lube Oil and Seal Oil Systems by Hydrocarbon Condensate

1981 ◽  
Author(s):  
L. Cootes
Keyword(s):  
Weight Space ◽  
Offshore Platforms ◽  
Supply Situation ◽  
Process Gas ◽  
Gas Compression ◽  
Seal Oil ◽  
Centrifugal Process ◽  
Uncertain Supply

In the wake of gas compression offshore the problem of contamination of Seal Oil and Lube Oil systems by the process gas has posed particular problems. These difficulties stem chiefly from the uniqueness of the offshore situation, viz.: The inability to “waste” contaminated seals return because of an uncertain supply situation (oil inventory bunkered by boat) and the twin constraints of weight space restrictions imposed by offshore design. “In situ” treatment of relatively large volumes of contaminated Lube Oil and Seal Oil on offshore platforms is possible using the method described in this paper.

Discussion on the “An electrolytic centrifugal process for the production of copper tubes”

1900 ◽  
Vol 29 (143) ◽  
pp. 279-285
Author(s):  
Slivanus P. Thompson ◽  
Henry Wilde ◽  
W.M. Mordey ◽  
S.Z. de Ferranti ◽  
G.L. Addenbrooke ◽  
...  
Keyword(s):  
Centrifugal Process

scholarly journals Aerodynamic Tests on Centrifugal Process Compressors: Influence of Diffusor Diameter Ratio, Axial Stage Pitch and Impeller Cut-Back

1983 ◽  
Author(s):  
Peter Lindner
Keyword(s):  
Diameter Ratio ◽  
Modular System ◽  
Engineering Practice ◽  
Experimental Measurements ◽  
Planning Stage ◽  
Centrifugal Process ◽  
Standard Solution ◽  
Almost All ◽  
Operational Behaviour

Almost all process compressors manufactured today are built in accordance with the fixed geometry modular system. It is not always possible to accurately predict the operational behaviour of a compressor particularly in such cases where a deviation from the standard solution is advisable or even necessary. This paper describes and analyses by means of experimental measurements the influence of three different stage modifications (axial stage pitch, shortening of the vaneless annular diffusor, blading cut-back). The results given here are directly related to engineering practice as they enable the design engineer to apply realistic efficiencies even for modified stages in the early planning stage.

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