Results 11 to 20 of about 5,654 (290)

Thermodynamic analysis of high-temperature pumped thermal energy storage systems: Refrigerant selection, performance and limitations [PDF]

open access: yesEnergy Reports, 2020
One of the bottlenecks for a wider implementation of renewable energies is the development of efficient energy storage systems which can compensate for the intermittency of renewable energy sources.
Abdelrahman H. Hassan   +5 more
doaj   +2 more sources

The cold store for a pumped thermal energy storage system [PDF]

open access: yesJournal of Energy Storage, 2017
In recent years several proposals for thermodynamic cycles involving the compression and expansion of gas and thermal storage have been put forward as effective ways of storing energy. These include the work of Desrues [1] who proposed a thermal energy storage process for large scale electric applications, Isentropic Ltd [2] who were working on a ...
Davenne, T.R.   +3 more
openaire   +3 more sources

Bi-level Optimal Scheduling of Wind-Solar-Hydro-Thermal Multi-Energy Complementary System Considering Pumped Storage [PDF]

open access: yes长江科学院院报
[Objective] In response to the operational challenge caused by high penetration of wind and solar power in modern power systems, this study aims to propose a bi-level optimized scheduling model for a multi-energy complementary power generation system ...
YAN Xin-jun, WANG Hong-xu
doaj   +2 more sources

Techno-Economic Comparison of Brayton Pumped Thermal Electricity Storage (PTES) Systems Based on Solid and Liquid Sensible Heat Storage

open access: yesEnergies, 2022
To integrate large shares of renewable energy sources in electric grids, large-scale and long-duration (4–8+ h) electric energy storage technologies must be used.
Guido Francesco Frate   +2 more
doaj   +2 more sources

Untapping Industrial Flexibility via Waste Heat-Driven Pumped Thermal Energy Storage Systems

open access: yesEnergies, 2023
Pumped thermal energy storage (PTES) is a promising long-duration energy storage technology. Nevertheless, PTES shows intermediate round-trip efficiency (RTE—0.5 ÷ 0.7) and significant CAPEX.
Stefano Barberis   +3 more
doaj   +2 more sources

Brayton pumped thermal energy storage: Optimal dispatchment in multi-energy districts

open access: yesEnergy Conversion and Management
Energy storage systems play a crucial role in supporting the integration of renewable energy sources. In this framework, Brayton Pumped Thermal Energy Storage is an emerging technology thanks to many positive features, including geographical and raw materials independence, long lifetime, and peculiar sector-coupling capabilities.
Alessandra Ghilardi   +4 more
openaire   +2 more sources

Energy Storage Systems for Photovoltaic and Wind Systems: A Review

open access: yesEnergies, 2023
The study provides a study on energy storage technologies for photovoltaic and wind systems in response to the growing demand for low-carbon transportation.
Djamila Rekioua
doaj   +1 more source

Levelised cost of storage for pumped heat energy storage in comparison with other energy storage technologies

open access: yes, 2022
221228Future electricity systems which plan to use large proportions of intermittent (e.g. wind, solar or tidal generation) or inflexible (e.g. nuclear, coal, etc.) electricity generation sources require an increasing scale-up of energy storage to match ...
Wardle, R.   +3 more
core   +2 more sources

Backflow effects on mass flow gain factor in a centrifugal pump

open access: yesScience Progress, 2021
Previous researches has shown that inlet backflow may occur in a centrifugal pump when running at low-flow-rate conditions and have nonnegligible effects on cavitation behaviors (e.g. mass flow gain factor) and cavitation stability (e.g. cavitation surge)
Wenzhe Kang   +3 more
doaj   +1 more source

Optimal Capacity Configuration of Pumped-Storage Units Used to Retrofit Cascaded Hydropower Stations

open access: yesEnergies, 2023
As flexible resources, cascaded hydropower stations can regulate the fluctuations caused by wind and photovoltaic power. Constructing pumped-storage units between two upstream and downstream reservoirs is an effective method to further expand the ...
Yang Li   +5 more
doaj   +1 more source

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