Chemical energy storage system for SEGS solar thermal power plant

Brown, Daryl R.; LaMarche, J.L.; Spanner, G.E.

doi:10.2172/6273418

Cited by 11 publications

(8 citation statements)

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“…This kind of thermo-chemical heat storage system has been investigated theoretically and experimentally by several authors focusing on solar thermal power applications or the use of process heat (Bauerle et al, 1976;Fujii et al, 1985;Brown et al, 1991;Schaube et al, 2011), heat pumps (Ogura et al, 1999(Ogura et al, , 2002, preheating of engines (Darkwa, 1998;Azpiazu et al, 2003), and even power generation on the moon (Perez- Davis and DiFilipo, 1990). Requirements are a specified system integration to minimize parasitic losses, e.g.…”

Section: Introductionmentioning

confidence: 99%

De- and rehydration of Ca(OH)2 in a reactor with direct heat transfer for thermo-chemical heat storage. Part B: Validation of model

Schaube

Utz

Wörner

et al. 2013

Chemical Engineering Research and Design

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Section: Introductionmentioning

confidence: 99%

De- and rehydration of Ca(OH)2 in a reactor with direct heat transfer for thermo-chemical heat storage. Part B: Validation of model

Schaube

Utz

Wörner

et al. 2013

Chemical Engineering Research and Design

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“…The Ca(OH) 2 /CaO de/rehydration has been theoretically and experimentally investigated by several authors for CSP application (Schaube et al, 2011;Brown et al, 1992;Werekobrobby, 1980), chemical heat pump (Fujimoto et al, 2002a,b;Ogura et al, 2003Ogura et al, , 2004, preheating of engines (Darkwa, 1998) and power generation on the moon (Perez-Davis et al, 1992).…”

Section: Ca(oh) 2 /Cao State-of-the-art and Reactor Technology Choicementioning

confidence: 99%

Ca(OH) 2 /CaO reversible reaction in a fluidized bed reactor for thermochemical heat storage

et al. 2014

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OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible. This is an author-deposited version published in : http://oatao.univ-toulouse.fr/ Eprints ID : 15980To link to this article : Michel Ca(OH)2/CaO reversible reaction in a fluidized bed reactor for thermochemical heat storage. AbstractThermal energy storage (TES) is a key factor for increasing the efficiency of concentrated solar power plants. TES using a reversible chemical reaction appears to be a promising technology for high energy density thermal storage (100-500 kW h m À3 ), at high temperature (up to 1000°C) and during a long period (24 h to several months). This paper details an experimental study to carry out the reversible reaction Ca(OH) 2(s) + DH r () CaO (s) + H 2 O (g) in a fluidized bed (FB) reactor. The 4 lm Ca(OH) 2 powder fluidization has been performed with an appropriate proportion of inert easy-to-fluidize particles. Then, Ca(OH) 2 dehydration and CaO hydration have been implemented in a FB reactor and 50 cycles have been reached. The mean energy density obtained is 60 kW h m À3 solid_mixture which amounts to a promising energy density of 156 kW h m À3 Ca(OH) 2 -bulk if the reactants and the easy-to-fluidize particles are separated. The results demonstrated the feasibility of the implementation of the Ca(OH) 2 /CaO thermochemical heat storage in a fluidized bed reactor.

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“…With technical and economic analysis methods, Brown et al . investigated the feasibility of inorganic hydroxides for TCS in solar thermal power plants, and they achieved energy storage efficiency of 80%.…”

Section: Solar Tcs Systemmentioning

confidence: 99%

“…Adapted from Pardo et al [37]. Thermochemical energy storage of solar energy J. Wu and X. f. Long and economic analysis methods, Brown et al [47] investigated the feasibility of inorganic hydroxides for TCS in solar thermal power plants, and they achieved energy storage efficiency of 80%. In addition, calcium hydroxide for heat pump applications has been widely explored [48][49][50][51][52][53][54]; the pieces of research cover such topics as heat and mass transfer augmentation in the CHP unit based on Ca(OH) 2 /CaO reaction with the experimental and numerical analysis method [48][49][50], the efficiency of a Ca(OH) 2 /CaO CHP for heat storing and heating/cooling [51,52], and heat storage and generation using Ca(OH) 2 /CaO reaction [53,54].…”

Section: -450mentioning

confidence: 99%

Research progress of solar thermochemical energy storage

Long

2014

Int. J. Energy Res.

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Summary Solar thermal power generation technology has great significance to alleviate global energy shortage and improve the environment. Solar energy must be stored to provide a continuous supply because of the intermittent and instability nature of solar energy. Thermochemical storage (TCS) is very attractive for high‐temperature heat storage in the solar power generation because of its high energy density and negligible heat loss. To further understand and develop TCS systems, comprehensive analyses and studies are very necessary. The basic principle and main components of a solar TCS system are described in this paper. Besides, recent progress and existing problems of several promising reaction systems are introduced. Further research directions are pointed out considering the technical, economic, and environmental issues that existed in the wide application of TCS. Copyright © 2014 John Wiley & Sons, Ltd.

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Chemical energy storage system for SEGS solar thermal power plant

Cited by 11 publications

References 0 publications

De- and rehydration of Ca(OH)2 in a reactor with direct heat transfer for thermo-chemical heat storage. Part B: Validation of model

De- and rehydration of Ca(OH)2 in a reactor with direct heat transfer for thermo-chemical heat storage. Part B: Validation of model

Ca(OH) 2 /CaO reversible reaction in a fluidized bed reactor for thermochemical heat storage

Research progress of solar thermochemical energy storage

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