Simulation of high temperature thermal energy storage system based on coupled metal hydrides for solar driven steam power plants

doi:10.1016/j.ijhydene.2017.11.100

Title: Simulation of high temperature thermal energy storage system based on coupled metal hydrides for solar driven steam power plants

Abstract

Concentrating solar power plants can achieve low cost and efficient renewable electricity production if equipped with adequate thermal energy storage systems. Metal hydride based thermal energy storage systems are appealing candidates due to their demonstrated potential for very high volumetric energy densities, high exergetic efficiencies, and low costs. The feasibility and performance of a thermal energy storage system based on NaMgH ₂F hydride paired with TiCr _1.6Mn _0.2 is examined, discussing its integration with a solar-driven ultra-supercritical steam power plant. The simulated storage system is based on a laboratory-scale experimental apparatus. It is analyzed using a detailed transport model accounting for the thermochemical hydrogen absorption and desorption reactions, including kinetics expressions adequate for the current metal hydride system. The results show that the proposed metal hydride pair can suitably be integrated with a high temperature steam power plant. The thermal energy storage system achieves output energy densities of 226 kWh/m ³, 9 times the DOE SunShot target, with moderate temperature and pressure swings. Also, simulations indicate that there is significant scope for performance improvement via heat-transfer enhancement strategies.

Authors:

d'Entremont, Anna ^[1]; Corgnale, Claudio ^[2]; Hardy, Bruce ^[1]; Zidan, Ragaiy ^[1]

Savannah River Site (SRS), Aiken, SC (United States)
Savannah River Site (SRS), Aiken, SC (United States); Greenway Energy LLC, Aiken, SC (United States)

Publication Date:: 2018-01-11

Research Org.:: Savannah River Site (SRS), Aiken, SC (United States)

Sponsoring Org.:: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Solar Energy Technologies Office (EE-4S); Curtin Univ., Perth (Australia)

OSTI Identifier:: 1426658

Alternate Identifier(s):: OSTI ID: 1548947

Report Number(s):: SRNL-STI-2018-00040
Journal ID: ISSN 0360-3199; PII: S0360319917344804; TRN: US1802707

Grant/Contract Number:: DE-AC09-08SR22470

Resource Type:: Journal Article: Accepted Manuscript

Journal Name:: International Journal of Hydrogen Energy

Additional Journal Information:: Journal Volume: 43; Journal Issue: 2; Journal ID: ISSN 0360-3199

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 14 SOLAR ENERGY; 25 ENERGY STORAGE; 54 ENVIRONMENTAL SCIENCES; Solar power plants; Transport models; Metal hydrides; Thermal energy storage; Hydrogen storage; High temperature

Citation Formats


                    d'Entremont, Anna, Corgnale, Claudio, Hardy, Bruce, and Zidan, Ragaiy. Simulation of high temperature thermal energy storage system based on coupled metal hydrides for solar driven steam power plants.  United States: N. p., 2018. 
        Web.  doi:10.1016/j.ijhydene.2017.11.100.

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                    d'Entremont, Anna, Corgnale, Claudio, Hardy, Bruce, & Zidan, Ragaiy. Simulation of high temperature thermal energy storage system based on coupled metal hydrides for solar driven steam power plants.  United States.  doi:10.1016/j.ijhydene.2017.11.100.

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                    d'Entremont, Anna, Corgnale, Claudio, Hardy, Bruce, and Zidan, Ragaiy. Thu .  
        "Simulation of high temperature thermal energy storage system based on coupled metal hydrides for solar driven steam power plants".  United States.  doi:10.1016/j.ijhydene.2017.11.100.  https://www.osti.gov/servlets/purl/1426658.

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@article{osti_1426658,

  title        = {Simulation of high temperature thermal energy storage system based on coupled metal hydrides for solar driven steam power plants},

  author       = {d'Entremont, Anna and Corgnale, Claudio and Hardy, Bruce and Zidan, Ragaiy},

  abstractNote = {Concentrating solar power plants can achieve low cost and efficient renewable electricity production if equipped with adequate thermal energy storage systems. Metal hydride based thermal energy storage systems are appealing candidates due to their demonstrated potential for very high volumetric energy densities, high exergetic efficiencies, and low costs. The feasibility and performance of a thermal energy storage system based on NaMgH2F hydride paired with TiCr1.6Mn0.2 is examined, discussing its integration with a solar-driven ultra-supercritical steam power plant. The simulated storage system is based on a laboratory-scale experimental apparatus. It is analyzed using a detailed transport model accounting for the thermochemical hydrogen absorption and desorption reactions, including kinetics expressions adequate for the current metal hydride system. The results show that the proposed metal hydride pair can suitably be integrated with a high temperature steam power plant. The thermal energy storage system achieves output energy densities of 226 kWh/m3, 9 times the DOE SunShot target, with moderate temperature and pressure swings. Also, simulations indicate that there is significant scope for performance improvement via heat-transfer enhancement strategies.},

  doi          = {10.1016/j.ijhydene.2017.11.100},

  journal      = {International Journal of Hydrogen Energy},

  issn         = {0360-3199},

  number       = 2,

  volume       = 43,

  place        = {United States},

  year         = {2018},

  month        = {1}

}

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DOI: 10.1016/j.ijhydene.2017.11.100

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Figure 1: Solar driven USC steam power plant with MH based TES system

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