Results 61 to 70 of about 6,081 (269)

Special Pressure Fluctuation analyse of the pump turbine

IOP Conference Series: Earth and Environmental Science, 2021
Abstract In the 13th five-year planning, the pumped storage power stations have speeding up. A large number of pumped storage power stations will been installed. The current development of modern pump storage plants aims towards a higher flexibility and stability in operation, an extended operation range of the hydraulic machine.
D M Liu, B Geng, H P He, J S Zheng, W C Liu, Q W Liang, Y Z Zhao   +6 more
openaire   +1 more source

From Bench to Bulk: Investigating Kinetics, Recyclability, and Scale‐Up of ZIF‐67

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Zeolitic imidazolate framework‐67 (ZIF‐67), a subclass of metal–organic frameworks (MOFs), has garnered considerable attention due to its high surface area, open crystal structure, tunable porosity, and potential applications in gas separation, catalysis, and carbon capture.
Aaush Bhardwaj Singh, Manishkumar D. Yadav   +1 more
wiley   +1 more source

Optimal size selection of combined diesel generator/fuel cell/photovoltaic system components using a multi‐objective strategy and sea lion optimization algorithm

IET Renewable Power Generation, EarlyView., 2023
The main purpose of the presented paper is to offer an optimum arrangement for a combined diesel generator/FC/PV system to off‐grid supplying of the electricity in a community in Shache, China. Abstract One of the challenges of the production sector of the electricity industry at present is how to meet the needs of electricity consumption in the ...
Hongbin Wang, Nurulafiqah Nadzirah Binti Mansor, Hazlie Bin Mokhlis, Arsam Mashhadi   +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

Energies
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, Xuexue Zong, Guangbiao Zhao, Denghui Zhang, Pengcheng Wang, Haonan Zhan   +5 more
doaj   +1 more source

Cavitation measurements on a pump-turbine model

Journal of Physics: Conference Series, 2015
When a hydraulic turbine is operated at off-design conditions, cavitation on the runner and other machine parts can occur. Vibration, noise and erosion caused by cavitation can damage the turbine and lead to a limitation of the operational range. To avoid damage of the turbine, it is fundamental to get knowledge of the presence of cavitation.
H Schmidt, O Kirschner, S Riedelbauch
openaire   +1 more source

Production and Formulation of Alcanivorax borkumensis SK2 Cell Powders for Marine Oil Spill Bioremediation

Biotechnology and Applied Biochemistry, EarlyView.
Abstract Oil spills pose severe threats to marine ecosystems and coastal communities. Alcanivorax borkumensis SK2, a marine bacterium with superior hydrocarbon‐degrading capabilities, emerges as a promising agent for bioremediation. This study identified an economical growth substrate for A.
Élisabeth Perreault, Denis Groleau, Patrick Vermette   +2 more
wiley   +1 more source

Numerical Predictions of Pressure Fluctuations in a Model Pump Turbine with Small Guide Vane Opening based on Partial Averaged Navier Stokes Approach

Journal of Applied Fluid Mechanics, 2016
Comparing with conventional hydraulic turbine (e.g. Francis turbine), pump turbine shows significant unstable characteristics because its design is a compromise between a pump and a turbine.
J. T. Liu, Yulin Wu, Yong Li
doaj  

The Influence of the Installation Angle of a Blade’s Low-Pressure Edge on the Cavitation Performance of Francis Pump-Turbines

Fluids
The low-pressure edge of a pump-turbine runner blade is more prone to cavitation than other parts. The installation angle of the blade’s low-pressure edge is one of the key parameters affecting the cavitation performance of the pump-turbine. Based on the
Hui Ruan, Wenxiong Chao, Xiangyang Li, Qingyang Zhang, Lvjun Qing, Chunmei Wei   +5 more
doaj   +1 more source

Flow characteristics analysis of an extra–high–head pump–turbine with splitter–blades under high pressure-pulsation condition [PDF]

E3S Web of Conferences
The new energy system aims to provide reliable, affordable and sustainable energy, and ultimately achieve carbon neutrality. But the unstable renewable energy sources including wind and solar increase the risk to the grid and the power system. The pumped–
Huang Xingxing, Huang Xiaoying, Bi Huili, Huang Yanqing, Xu Buchao, Wang Zhengwei   +5 more
doaj   +1 more source

Failure investigation of a large pump-turbine runner [PDF]

Engineering Failure Analysis, 2012
A failure investigation was conducted on a high-pressure machine with a large pump-turbine runner that was 2.9 m in diameter and had a maximum discharge rate of 32 m 3 /s. A part of the runner broke off during operation. This released a piece of the crown, which went through the machine, causing further damage. An analysis of the broken runner revealed
Egusquiza Estévez, Eduard, Valero Ferrando, Ma. del Carmen, Huang, Xingxing, Guardo Zabaleta, Alfredo de Jesús, Jou Santacreu, Esteban, Rodríguez, Cristian   +5 more
openaire   +3 more sources