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:2022:10.1016/j.renene.2022.01.017,
author = {Zhao, Y and Song, J and Liu, M and Zhao, Y and Olympios, AV and Sapin, P and Yan, J and Markides, CN},
doi = {10.1016/j.renene.2022.01.017},
journal = {Renewable Energy},
pages = {431--456},
title = {Thermo-economic assessments of pumped-thermal electricity storage systems employing sensible heat storage materials},
url = {http://dx.doi.org/10.1016/j.renene.2022.01.017},
volume = {186},
year = {2022}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Three distinct pumped-thermal electricity storage (PTES) system variants based on currently available sensible heat storage materials are presented: (i) Joule-Brayton PTES systems with solid thermal reservoirs; (ii) Joule-Brayton PTES systems with liquid thermal stores; and (iii) transcritical Rankine PTES systems with liquid thermal stores. Parametric design optimisation is performed for each PTES system variant considering various system configurations, working fluids and storage media from a thermodynamic perspective. The results show that amongst the investigated systems, the recuperative transcritical Rankine PTES system with CO2 as the working fluid and Therminol VP-1 as the storage material achieves the highest roundtrip efficiency of 68%. Further to the optimal thermodynamic performance of these system, their corresponding capital costs are also evaluated. The economic performance comparisons of selected optimal PTES designs reveal that the recuperative transcritical Rankine PTES system with CO2 and Therminol VP-1 exhibits the lowest capital cost of 209 M$ for the given power capacity (50 MW) and discharge duration (6 h). The influences of the power capacity and discharge duration are also investigated, with results showing that the lowest power and energy capital costs are 3790 $/kW (discharge duration of 2 h) and 396 $/kWh (discharge duration of 12 h), respectively.
AU  - Zhao,Y
AU  - Song,J
AU  - Liu,M
AU  - Zhao,Y
AU  - Olympios,AV
AU  - Sapin,P
AU  - Yan,J
AU  - Markides,CN
DO  - 10.1016/j.renene.2022.01.017
EP  - 456
PY  - 2022///
SN  - 0960-1481
SP  - 431
TI  - Thermo-economic assessments of pumped-thermal electricity storage systems employing sensible heat storage materials
T2  - Renewable Energy
UR  - http://dx.doi.org/10.1016/j.renene.2022.01.017
UR  - https://www.sciencedirect.com/science/article/pii/S0960148122000192
UR  - http://hdl.handle.net/10044/1/93407
VL  - 186
ER  -
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