Fluid charge and discharge strategies of dual-media thermal storage systems in the starting-up process of daily cyclic operations

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Because of the capability of large capacity thermal storage and extended operation during night and cloudy days, concentrated solar thermal power generation is getting more and more attention in the recent years. Dual-media thermal energy storage system is typically adopted in industry for reducing the use of the heat transfer fluid, which is usually expensive. In such a dual-media system, the solid filler material can be a phase change material relying on latent heat or a regular solid material using sensible heat for energy storage. Two strategies of startingup fluid charge and discharge are considered for the operation of a concentrated solar thermal power plant incorporated with a dual-media thermal storage system. These two strategies include: 1) starting daily cyclic charge and discharge operation with an initially cold tank; 2) to fully charge the thermal storage system before operation of the cyclic discharge/charge for the power plant. The energy storage efficiency and the effects to the power plant operation due to the application of these two strategies are studied in the current work based on an enthalpy-based 1-D model, and significant difference is found in starting-up process of the daily cyclic operations, which will help us decide the best strategy of operating a thermal energy storage system with more electrical energy output.

Original languageEnglish (US)
Title of host publicationASME 2014 8th International Conference on Energy Sustainability, ES 2014 Collocated with the ASME 2014 12th International Conference on Fuel Cell Science, Engineering and Technology
PublisherWeb Portal ASME (American Society of Mechanical Engineers)
Volume1
ISBN (Print)9780791845868
DOIs
StatePublished - 2014
EventASME 2014 8th International Conference on Energy Sustainability, ES 2014 Collocated with the ASME 2014 12th International Conference on Fuel Cell Science, Engineering and Technology - Boston, United States
Duration: Jun 30 2014Jul 2 2014

Other

OtherASME 2014 8th International Conference on Energy Sustainability, ES 2014 Collocated with the ASME 2014 12th International Conference on Fuel Cell Science, Engineering and Technology
CountryUnited States
CityBoston
Period6/30/147/2/14

Fingerprint

Discharge (fluid mechanics)
Energy storage
Fluids
Power plants
Thermal energy
Phase change materials
Latent heat
Specific heat
Power generation
Fillers
Enthalpy
Hot Temperature
Heat transfer
Industry

Keywords

  • Concentrated solar power (CSP)
  • Latent heat storage system (LHSS)
  • Sensible heat storage system (SHSS)
  • Start-up energy storage strategy

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment

Cite this

Xu, B., Li, P., & Chan, C. (2014). Fluid charge and discharge strategies of dual-media thermal storage systems in the starting-up process of daily cyclic operations. In ASME 2014 8th International Conference on Energy Sustainability, ES 2014 Collocated with the ASME 2014 12th International Conference on Fuel Cell Science, Engineering and Technology (Vol. 1). Web Portal ASME (American Society of Mechanical Engineers). https://doi.org/10.1115/ES2014-6444

Fluid charge and discharge strategies of dual-media thermal storage systems in the starting-up process of daily cyclic operations. / Xu, Ben; Li, Peiwen; Chan, Cholik.

ASME 2014 8th International Conference on Energy Sustainability, ES 2014 Collocated with the ASME 2014 12th International Conference on Fuel Cell Science, Engineering and Technology. Vol. 1 Web Portal ASME (American Society of Mechanical Engineers), 2014.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Xu, B, Li, P & Chan, C 2014, Fluid charge and discharge strategies of dual-media thermal storage systems in the starting-up process of daily cyclic operations. in ASME 2014 8th International Conference on Energy Sustainability, ES 2014 Collocated with the ASME 2014 12th International Conference on Fuel Cell Science, Engineering and Technology. vol. 1, Web Portal ASME (American Society of Mechanical Engineers), ASME 2014 8th International Conference on Energy Sustainability, ES 2014 Collocated with the ASME 2014 12th International Conference on Fuel Cell Science, Engineering and Technology, Boston, United States, 6/30/14. https://doi.org/10.1115/ES2014-6444
Xu B, Li P, Chan C. Fluid charge and discharge strategies of dual-media thermal storage systems in the starting-up process of daily cyclic operations. In ASME 2014 8th International Conference on Energy Sustainability, ES 2014 Collocated with the ASME 2014 12th International Conference on Fuel Cell Science, Engineering and Technology. Vol. 1. Web Portal ASME (American Society of Mechanical Engineers). 2014 https://doi.org/10.1115/ES2014-6444
Xu, Ben ; Li, Peiwen ; Chan, Cholik. / Fluid charge and discharge strategies of dual-media thermal storage systems in the starting-up process of daily cyclic operations. ASME 2014 8th International Conference on Energy Sustainability, ES 2014 Collocated with the ASME 2014 12th International Conference on Fuel Cell Science, Engineering and Technology. Vol. 1 Web Portal ASME (American Society of Mechanical Engineers), 2014.
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