Results 51 to 60 of about 5,041 (207)

Design study of a regenerative pump using one-dimensional and three-dimensional numerical techniques

open access: yes, 2012
Regenerative pumps are low cost, compact, able to deliver high heads at low flow rates. Furthermore with stable performance characteristics they can operate with very small NPSH.
Quail, Francis J.   +5 more
core   +1 more source

Reliability Improvement Of End Suction Pump In Severe Service Through Engineered Component Upgrade [PDF]

open access: yes, 2003
Case StudyCS1An end suction pump for amine service at an Ammonia plant was successfully upgraded by improvement of its components. Two 290 kW (390 HP) pumps, turbine/motor driven, rated for 262 m^3/hr (1,153 gpm) and 271 m (889 ft), operate in severe ...
Morales Casanova, César A.   +1 more
core   +1 more source

Automated Process Optimization in a Novel Triple Shaft Mixer with Adaptive Mixing Modes

open access: yesChemie Ingenieur Technik, EarlyView.
A novel multi‐purpose mixer with adjustable blade angle and a coaxial stirrer is developed, providing three degrees of freedom. An optimization strategy is integrated to autonomously identify optimal operating conditions through automated tests. The current draw of the main stirrer serves as the optimization criterion, while stirrer speeds, directions,
B. Schwarz, H. Kniele, J. A. Lindner
wiley   +1 more source

Structural characteristics analysis of extra–high–head pump–turbine-unit under extreme-pressure working-conditions [PDF]

open access: yesE3S Web of Conferences
During transient processes in extra–high–head pumped–storage power plants, the prototype pump–turbine-units must be able to withstand sudden changes in water pressure within the delivery system.
Huang Xiaoying   +5 more
doaj   +1 more source

Rethinking Climate Change on the Role of Human Power Generation, Alternative Perspectives, Potential Solutions, and a Plea for Action

open access: yesChemie Ingenieur Technik, EarlyView.
All energy matters Let us broaden the discussion on solutions to climate change. Greenhouse gases have upset the delicate equilibrium of the Earth's energy balance. Consequently, all sources of heat affect the temperature of the Earth. Although the amount of additional heat generated by humans is a fraction of that produced by the sun, it is generated ...
Martin Bertau   +2 more
wiley   +1 more source

Design optimisation of a regenerative pump using numerical and experimental techniques

open access: yes, 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

Selecting Steam Turbines For Pump Drives [PDF]

open access: yes, 2003
Tutorialpg. 107Selecting the right steam turbine for the application can save the purchaser money on initial cost (avoiding oversizing) as well as operating costs (better efficiency).
Cerce, Mike, Patel, Vinod
core   +1 more source

Defossilisation of the Energy Supply of a Chemical Site by Integration of a Carnot Battery

open access: yesChemie Ingenieur Technik, EarlyView.
This study presents the results of a techno‐economic analysis of CO2‐free energy supply concepts for electricity and heat for the defossilisation of a chemical park in Germany for the model years 2030 and 2045. The focus is on the integration of a Carnot battery with thermal energy storage, which enables the flexible use of green fuels and renewable ...
Martin Bolten   +6 more
wiley   +1 more source

Energy Flexibilization and Demand Response for a Novel Decentralized Power‐to‐Methanol Process

open access: yesChemie Ingenieur Technik, EarlyView.
This study presents the results of an optimization framework for the scheduling of a Power‐to‐methanol process coupled with an electrolyser, renewable energy sources and a battery. The optimal dynamic operating schedule is computed with different configurations and boundary conditions, showing the advantages of flexible operation.
Max Kollmer   +5 more
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

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