Results 111 to 120 of about 26,878 (299)
Numerical Investigations on the Transient Performance of a Centrifugal Pump
Centrifugal pumps are an integral part of plants used in process industries. The flow structure within a centrifugal pump is very complex due to the interaction between the rotating impeller and the geometric features around it.
Asim, Taimoor, Mishra, Rakesh
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Critical Speed Analysis Of An Eight-Stage Centrifugal Pump
, 1985 Lecturepg. 59A critical speed and unbalance response analysis of an eight-stage centrifugal pump was performed, considering the variation of stiffness and damping coefficients with speed for both the oil firm bearings and the fluid seals (interstage ...
Tison, James D. +2 more
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Animal Models and Experimental Medicine, EarlyView.Abstract Background Ex vivo lung perfusion (EVLP) allows the evaluation of lungs that do not meet standard transplantation criteria. Current procedures do not permit the identification of regional functional deficits. We investigated the feasibility of assessing lobar gas exchange during EVLP in a swine model.
Giulia Maria Ruggeri +16 more
wiley +1 more source
Numerical studies of the velocity distribution within the volute of a centrifugal pump
Centrifugal pumps play an essential role in engineering systems since they are widely used in the process and power industries. The performance of a centrifugal pump needs to be maximised due to its importance and this depends on the flow structure ...
Zala, Karina +4 more
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Disc Pump-Type Pump Technology For Hard-To-Pump Applications
, 2000 Lecturepg. 69This paper describes a unique pumping concept based on a noncontact mechanism operating solely using the principles of boundary layer and viscous drag.
Hanas, Peter, Pacella, John
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Research on Diaphragm Pump Fault Diagnosis Method Based on Res‐DCB‐Net
Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT Nonstationary pressure pulsation signals of diaphragm pumps contain strong background noise and coupled characteristics. This makes it challenging to extract incipient fault features and to decouple faults with similar physical mechanisms. To address these limitations, this paper proposes a spatiotemporal fault diagnosis model named Res‐DCB ...
Jiahui Wang +7 more
wiley +1 more source
Integral Balance Piston For Centrifugal Pump Impellers
, 1991 Lecturepg. 29Axial thrust balancing of pressure forces in centrifugal pumps has long been a design challenge for pump engineers. This becomes particularly important in sealless pumps, due to their lack of thrust bearing capacity, and an increasingly ...
Fairman, Kevin, Mabe, William J.
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Biofuels, Bioproducts and Biorefining, EarlyView.Abstract This study developed an enzymatic process to add value to palm oil fatty acid distillate (PFAD) and glycerol, resulting in the production of monoacylglycerides (MAG) and diacylglycerides (DAG). The biocatalyst loading (Novozym 435) and molar ratio of reagents were evaluated to obtain a suitable reaction condition in terms of space–time yield ...
Ronaldo Rodrigues de Sousa +4 more
wiley +1 more source
Cost-effectiveness of a centrifugal-flow pump for patients with advanced heart failure in Argentina
PLoS ONE, 2022 Background Centrifugal-flow pumps are novel treatment options for patients with advanced heart failure (HF). This study estimated the incremental cost-effectiveness ratio (ICER) of centrifugal-flow pumps for patients with advanced HF in Argentina ...
Andrea Alcaraz +7 more
doaj
British Educational Research Journal, EarlyView.Abstract This paper examines the experiences of Nigerian cross‐border students in UK higher education, focusing on how colonial legacies continue to shape the interplay between structure and agency. Three key themes emerged in the analysis of the data: First, the persistence of a ‘West is Best’ mentality reflects the internalisation of colonial ...
Jennifer Marshall, Jack Bryne Stothard
wiley +1 more source