Optimizing thermal energy storage operation

•Managing heat flow in TES-integrated CSP plants is a complex process.•Heat flow is restricted by many design and operational bounds.•Heat flow can be managed to maximize power generation or plant revenues.•An operational logic is presented to manage TES charging and discharging procedures.•The logi...

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Bibliographic Details
Published in:Solar energy 2015-10, Vol.120, p.318-329
Main Authors: Abutayeh, Mohammad, Alazzam, Anas, El-Khasawneh, Bashar
Format: Article
Language:English
Subjects:
Concentrated solar power
Electricity generation
Power plants
Solar energy
Thermal energy
Thermal energy storage
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Summary:•Managing heat flow in TES-integrated CSP plants is a complex process.•Heat flow is restricted by many design and operational bounds.•Heat flow can be managed to maximize power generation or plant revenues.•An operational logic is presented to manage TES charging and discharging procedures.•The logic can be integrated with CSP models for more accurate process depiction. Thermal energy storage systems are usually attached to solar power plants to extend their operation beyond sunshine periods. Solar heat collected during the day is divided between a power block and a properly-sized thermal energy storage system. The stored heat is later released to be processed by the power block during periods of little or no solar resource. An operating scheme for a dual-tank molten salt thermal energy storage system was developed. The scheme can be used to optimize charging and discharging processes of a thermal energy storage system to maximize power generation or revenue.
ISSN:0038-092X
1471-1257
DOI:10.1016/j.solener.2015.06.027