material selection under the aspects of fatigue, corrosion, erosion-corrosion or hydro-abrasive wear, pump selection, and hydraulic quality criteria. Information on the methods and procedures for the various calculations and failure diagnostics discussed in the text are presented in tables which may be...
Blood pumps of conventional design, in which the drive of the rotor is done by an electric motor with a supported shaft that penetrates the pump housing and is provided with a shaft seal are therefore unsuited for permanent implantation. Hermetically sealed housings, through whose wall the pump ...
Pump efficiency,η (%)is a measure of the efficiency with which the pump transfers useful work to the fluid. η = Pout/ Pin(2) where η = efficiency (%) Pin= power input Pout= power output Related Topics Pumps Design of pumping systems and pipelines. With centrifugal pumps, displacement...
TAN Lei, CAO Shuliang, WANG Yuming, et al. Numerical calculations for internal flow field in centrifugal pump impeller [ J ]. Transactions of the CSAE, 2012, 28 (14) : 47 - 51. (in Chinese).Tan Lei 1,Cao S...
Download PDF Abstract The present work is concerned with a numerical study of the performance of a conical annular centrifugal contractor through the analysis of the flow properties when the apex angle is changed for different imposed axial flows. The calculations revealed the advantage of using conic...
Do calculations using maraging steel for the compressors and Krypton for the working gas. The following describes an embodiment of my favorite design for die engine of the current invention. Assume an engine comprising a steel cylinder 24 inches long of 11 inches inside diameter and 12 inches ...
design. Therefore, only the impellers are changed, while the double volute and the double-suction chamber remain the same in the redesign process. The pump operates at the design flow rate of 3800 m3/h, with a head of 170 m. Based on these design requirements, the impeller is redesigned ...
patients, the clinical relevance of these findings will have to be proven in clinical investigations. Our study provides short-term in vitro data with small sample numbers. However, our statistical calculations prove the safety of a new device in comparison to a clinically well-established pump. ...
that the invention may also be practiced in systems having the pump indirectly coupled to the motor, through intervening gearboxes or other drive elements, by incorporating appropriate conversion factors reflecting the intervening drive elements into the calculations disclosed herein in the manner known ...
i.e. a full turn of the axis upon which the disc is arranged. Thus, a cycle is the pulse sequence generated during a full turn of the disc. By calculating the time between cycles, the time for a full turn is generated and this may then by simple calculations be used for calculating...