Results 51 to 60 of about 5,415 (258)
A Method for Optical Quantification of Local Oxygen Limitations in Multiphase Bioreactors
Biotechnology and Bioengineering, EarlyView.ABSTRACT Spatial oxygen limitation is a major source of physiological stress and metabolic, scale‐dependent heterogeneity in aerobic bioprocesses. In gas‐liquid stirred tank reactors, oxygen availability is governed by hydrodynamics and mass transfer and is therefore inherently non‐uniform.
Ryan Rautenbach +5 more
wiley +1 more source
Correction of High Vibration on a Vertical Turbine Deep Well Pump with a Dynamic Vibration Absorber [PDF]
, 2018 Case StudyA 100 horsepower, 180 foot deep vertical turbine pump called #12 Well Pump had a history of reoccurring high vibration despite multiple pump rebuilds and motor replacements.
Bryant, Benjamin, Moll, Matthew
core
EnergiesIn order to study the influence of split blades on the turbine force characteristics and fluid–structure coupling characteristics of pumps, this paper selected the IS 80-50-315 centrifugal pump, used as a reverse-acting hydraulic turbine, as the research
Fengxia Shi +5 more
doaj +1 more source
A new design method for the vortex hydrogen circulating pump system
AIP Advances, 2023 Against the backdrop of “carbon peak and carbon neutrality,” the hydrogen and fuel cell vehicle industry are rapidly developing. Within the on-board hydrogen supply system, the hydrogen circulation pump serves as an essential component of the hydrogen ...
Ji-Qiang Li +2 more
doaj +1 more source
Business Strategy and the Environment, EarlyView.ABSTRACT The present study applied the diffusion of innovation theory to investigate the rate of diffusion of renewable energy sources used by Europe's top professional football stadiums and the relationship with carbon neutrality. A discrete diffusion model estimated the diffusion of renewable energy to saturation, and a multivariate logistic ...
Chad S. Seifried +2 more
wiley +1 more source
Design optimisation of a regenerative pump using numerical and experimental techniques
, 2011 Regenerative pumps are the subject of increased interest in industry as these pumps are low cost, low specific speed, compact and able to deliver high heads with stable performance characteristics.
Scanlon, T.J. +5 more
core +1 more source
Modelling tidal current turbine wakes using a coupled RANS-BEMT approach as a tool for analysing power capture of arrays of turbines [PDF]
, 2011 The downstream evolution of the wake generated by a rotating tidal energy conversion device influences the performance of the device itself as well as the performance of any downstream device.
Phillips, Alexander B. +11 more
core +1 more source
Calibration of flow differential pressure coefficients on pump-turbine by thermodynamic method
Energy InformaticsOn-line monitoring of flow rate is rather important to evaluate the water consumption of the pump-turbine and the overall efficiency of the pumped storage station.
Wenkui Zhang +4 more
doaj +1 more source
Journal of Sustainable Development of Energy, Water and Environment Systems, 2018 A combined method using statistical and numerical models has been developed by the authors for selecting a pump running as turbine to be applied in micro-hydro plants.
Silvio Barbarelli +2 more
doaj +1 more source
Comparison of Different Approaches to Predict the Performance of Pumps As Turbines (PATs)
Energies, 2018 This paper deals with the comparison of different methods which can be used for the prediction of the performance curves of pumps as turbines (PATs). The considered approaches are four, i.e., one physics-based simulation model (“white box&rdquo ...
Mauro Venturini +3 more
doaj +1 more source