Imperial College London
Alternate

ProfessorChristosMarkides

Faculty of Engineering, Department of Chemical Engineering

Professor of Clean Energy Technologies
 
 
 
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Contact

 

+44 (0)20 7594 1601c.markides Website

 
 
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Location

 

404ACE ExtensionSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Zhao:2021,
author = {Zhao, YL and Wang, CY and Liu, M and Chong, DT and Markides, CN and Yan, JJ},
journal = {Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics},
pages = {1659--1666},
title = {Configuration Optimization of Carnot Battery Energy Storage System Based on Transcritical Cycles},
volume = {42},
year = {2021}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Carnot battery is a novel and promising technology that can realize large-scale energy storage. This investigation focuses on a Carnot battery energy storage system based on the CO2 transcritical cycle, six system configurations employing different thermal energy storage materials and with or without recuperation are firstly designed and the thermodynamic parameters are optimized. Then, detailed comparison analyses from thermo-economic perspectives are conducted and the optimal system configuration is obtained. The main results reveal that the roundtrip efficiency of the recuperated Carnot battery system enhances when compared to the non-recuperated system; the recuperated system using rapeseed oil as the storage material achieves the highest roundtrip efficiency (75.28%) and energy density (36.61 kWh•m-3), which is respective 36.67% and 25.68 kWh•m-3 higher than the non-recuperated system. Among six different system configurations of the Carnot battery, the total capital costs range from 11.5 to 36.3 106USD and the energy capital costs are in the range of 954~3028 USD•kW-1•h-1; in the cost breakdown, the highest cost of heat exchangers can reach up to 54%, the highest cost of thermal stores can reach up to 14%, and the costs of expanders and a compressor change in the range of 18%~31% and 14%~26%, respectively; compared with other system configurations, the recuperated Carnot battery system using Therminol as the storage material has the best economic performance.
AU  - Zhao,YL
AU  - Wang,CY
AU  - Liu,M
AU  - Chong,DT
AU  - Markides,CN
AU  - Yan,JJ
EP  - 1666
PY  - 2021///
SN  - 0253-231X
SP  - 1659
TI  - Configuration Optimization of Carnot Battery Energy Storage System Based on Transcritical Cycles
T2  - Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics
VL  - 42
ER  -
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