Results 11 to 20 of about 4,708 (200)

Carnot Battery Based on Brayton Supercritical CO2 Thermal Machines Using Concentrated Solar Thermal Energy as a Low-Temperature Source

open access: yesEnergies, 2023
Carnot batteries store surplus power as heat. They consist of a heat pump, which upgrades a low-temperature thermal energy storage, a high-temperature storage system for the upgraded thermal energy, and a heat engine that converts the stored high ...
José Ignacio Linares   +5 more
doaj   +1 more source

Preliminary prospects of a Carnot-battery based on a supercritical CO2 Brayton cycle

open access: yesActa Polytechnica, 2021
As a part of the change towards a higher usage of renewable energy sources, which naturally deliver the energy intermittently, the need for energy storage systems is increasing. For the compensation of the disturbance in power production due to inter-day
Karin Rindt   +2 more
doaj   +1 more source

Pumped Thermal Energy Storage System for Trigeneration: The Concept of Power to XYZ

open access: yesApplied Sciences, 2022
The objective of this investigation is to present a novel concept for the optimum exploitation of volatile electricity from renewable energy sources. The idea of the Carnot battery is extended to a general concept for trigeneration which can be called ...
Evangelos Bellos   +2 more
doaj   +1 more source

Multi-criteria optimization and thermo-economic analysis of a heat pump-organic Rankine cycle Carnot battery system

open access: yesGreen Energy and Resources, 2023
Energy storage is a crucial solution for the intermittency and instability of renewable energy. Carnot batteries, a novel electrical energy storage technology, promise to address the challenges of renewable electrical energy storage worldwide.
Hongna Qiao   +4 more
doaj   +1 more source

Carnot battery technology: A state-of-the-art review

open access: yesJournal of Energy Storage, 2020
Abstract The growth of renewable energy requires flexible, low-cost and efficient electrical storage to balance the mismatch between energy supply and demand. The Carnot battery buffers electrical energy by storing thermal energy (charging cycle mode) from a resistive heater or a heat pump system when the electricity production is higher than the ...
Olivier Dumont   +5 more
openaire   +1 more source

The maximum efficiency of nano heat engines depends on more than temperature [PDF]

open access: yes, 2019
Sadi Carnot's theorem regarding the maximum efficiency of heat engines is considered to be of fundamental importance in thermodynamics. This theorem famously states that the maximum efficiency depends only on the temperature of the heat baths used by the
Ng, Nelly   +2 more
core   +2 more sources

Techno-economic projections for advanced small solar thermal electric power plants to years 1990-2000 [PDF]

open access: yes, 1978
Advanced technologies applicable to solar thermal electric power systems in the 1990-200 time-frame are delineated for power applications that fulfill a wide spectrum of small power needs with primary emphasis on power ratings less than 10MWe ...
Chen, K. H.   +6 more
core   +2 more sources

High performance Carnot Batteries based on hybrid cycles

open access: yes, 2021
Pumped thermal energy storage (PTES) has seen a rapid increase in research interest and private investment during the last few years. A range of different concepts has been proposed, based on different thermodynamic cycles, and the most promising ones are already being turned into demonstration projects or small-scale storage plants. These include PTES
Farres Antunez, Pau   +2 more
openaire   +1 more source

Simulation of the Part Load Behavior of Combined Heat Pump-Organic Rankine Cycle Systems

open access: yesEnergies, 2021
Pumped Thermal Energy Storages (PTES) are suitable for bridging temporary energy shortages, which may occur due to the utilization of renewable energy sources.
Bernd Eppinger   +6 more
doaj   +1 more source

Economic potentials of carnot batteries in 100% renewable energy systems [PDF]

open access: yesEnergy, 2023
In 100% renewable energy systems, the requirements for flexibility will be greater than for traditional carbon-based energy systems. New technologies and system setups are needed to provide flexibility for balancing the system. Implementing electricity storages in the energy system could provide parts of the required flexible demand and production ...
Peter Sorknæs   +4 more
openaire   +2 more sources

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