New sugar alcohols mixtures for long-term thermal energy storage applications at temperatures between 70 °C and 100 °C

2016 ◽  
Vol 155 ◽  
pp. 454-468 ◽  
Author(s):  
Elena Palomo Del Barrio ◽  
Régis Cadoret ◽  
Julien Daranlot ◽  
Fouzia Achchaq
Keyword(s):  
Energy Storage ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Sugar Alcohols ◽  
Energy Storage Applications

scholarly journals Preliminary prospects of a Pumped Thermal Energy Storage (PTES) based on a supercritical CO2 Brayton cycle

2021 ◽  
Author(s):  
Karin Astrid Senta Edel ◽  
František Hrdlička ◽  
Václav Novotný
Keyword(s):  
Energy Storage ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Supercritical Co2 ◽  
Storage Systems ◽  
Renewable Energy Sources ◽  
Brayton Cycle ◽  
Term Energy ◽  
Weather Changes

As part of the change towards a higher deployment of renewable energy sources, which naturally deliver energy intermittently, the need for energy storage systems is increasing. For compensation of disturbance in power production due to inter-day to seasonal weather changes, long-term energy storage is required. In the spectrum of storage systems, one out of a few geographically independent possibilities is the storage of electricity in heat, so-called Carnot-Batteries. This paper presents a Pumped Thermal Energy Storage (PTES) system based on a recuperated supercritical CO2 Brayton cycle. The modelled system provides a round-trip efficiency of 38.9%.

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