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{McTigue:2021:10.1016/j.enconman.2021.115016,
author = {McTigue, JD and Farres-Antunez, P and J, KS and Markides, CN and White, AJ},
doi = {10.1016/j.enconman.2021.115016},
journal = {Energy Conversion and Management},
title = {Techno-economic analysis of recuperated Joule-Brayton pumped thermal energy storage},
url = {http://dx.doi.org/10.1016/j.enconman.2021.115016},
volume = {252},
year = {2021}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - This article describes a techno-economic model for pumped thermal energy storage systems based on recuperated Joule-Brayton cycles and two-tank liquid storage. Models have been developed for each component, with particular emphasis on the heat exchangers. Economic metrics such as the power and energy capital costs (i.e., per-kW and per-kWh capacity) and levelized cost of storage are evaluated by gathering numerous cost correlations from the literature, thereby enabling estimates of uncertainty. It is found that the use of heat exchangers with effectivenesses up to 0.95 is economically worthwhile, but higher values lead to rapidly escalating component size and system cost. Several hot storage fluids are considered; those operating at the highest temperatures (chloride salts) improve the round-trip efficiency but the benefit is marginal and may not warrant the additional material costs and risk when compared to lower-temperature nitrate salts. Cost-efficiency trade-offs are explored using a multi-objective optimization algorithm, yielding optimal designs with round-trip efficiencies in the range 59–72% and corresponding levelized storage costs of 0.12  0.03 and 0.38  0.10 $/kWhe. Lifetime costs are competitive with lithium-ion batteries for discharging durations greater than 6 h under current scenarios.
AU  - McTigue,JD
AU  - Farres-Antunez,P
AU  - J,KS
AU  - Markides,CN
AU  - White,AJ
DO  - 10.1016/j.enconman.2021.115016
PY  - 2021///
SN  - 0196-8904
TI  - Techno-economic analysis of recuperated Joule-Brayton pumped thermal energy storage
T2  - Energy Conversion and Management
UR  - http://dx.doi.org/10.1016/j.enconman.2021.115016
UR  - https://www.sciencedirect.com/science/article/pii/S0196890421011924?via%3Dihub
UR  - http://hdl.handle.net/10044/1/93399
VL  - 252
ER  -
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