Results 51 to 60 of about 18,543 (271)

Hydraulic Optimization of Two-Way Counter-rotating Axial Flow Pump Turbine

open access: yesFrontiers in Energy Research, 2020
The two-way counter-rotation technology is mainly applied to the tidal power station. In this paper, the hydrodynamic optimization of the two-way counter-rotating axial-flow pump turbine is carried out.
Wang Xiuli   +6 more
doaj   +1 more source

Geometrical Optimization of Pump-As-Turbine (PAT) Impellers for Enhancing Energy Efficiency with 1-D Theory

open access: yes, 2020
This paper presents a multi-objective optimization strategy for pump-as-turbines (PAT), which relies on one-dimensional theory and analysis of geometrical parameters.
Longyan Wang   +3 more
semanticscholar   +1 more source

Influence of Zn2+ and Oxygen Supply on Malic Acid Production and Growth of Aspergillus oryzae

open access: yesBiotechnology and Bioengineering, EarlyView.
ABSTRACT Malic acid is a valuable platform chemical traditionally derived from fossil‐based resources. Microbial cultivation with Aspergillus oryzae offers a sustainable alternative based on renewable feedstocks. In this study, a well‐established minimal medium for malic acid production, commonly used in previous research to ensure reproducibility, was
Lukas Hartmann   +3 more
wiley   +1 more source

Study on the Influence of Split Blades on the Force Characteristics and Fluid–Structure Coupling Characteristics of Pumps as Turbines

open access: yesEnergies
In 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

Think Global, Act Local? Fortune 500 Business Strategies for Sustainable Cities and Communities (SDG 11)

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT The role of business towards achieving the 17 Sustainable Development Goals (SDGs) has been well established. However, SDG contextualization continues to pose a conundrum, particularly for firms operating in multiple contexts. This becomes even more problematic in the case of SDG 11, the only goal in the sustainable development agenda directly
Andreas Georgiou
wiley   +1 more source

Calibration of flow differential pressure coefficients on pump-turbine by thermodynamic method

open access: yesEnergy Informatics
On-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

Using a Statistical-Numerical Procedure for the Selection of Pumps running as Turbines to be applied in Water Pipelines: Study Cases

open access: yesJournal 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)

open access: yesEnergies, 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

A new design method for the vortex hydrogen circulating pump system

open access: yesAIP 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

Multivariate Regression Models for Predicting Pump-as-Turbine Characteristics

open access: yesWater, 2023
Installing pumps as turbines (PaTs) in water distribution networks can recover otherwise wasted energy, as well as reduce leakage caused by high water pressure. However, a barrier to their implementation is the lack of information on their performance in turbine mode.
Alex Brisbois, Rebecca Dziedzic
openaire   +1 more source

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