Parametric studies of thermochemical processes for seasonal storage

Tanguy, Gwennyn; Marias, Foivos; Rougé, Sylvie; Wyttenbach, Joël; Papillon, Philippe

doi:10.1016/j.egypro.2012.11.046

Cited by 23 publications

(2 citation statements)

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“…Furthermore, it is found that reasonable solar fractions can be achieved for the specific system dimensions that are mentioned in the paper. An open and integrated reactor based on SrBr 2 was modelled focusing on the hydration reaction, which is more problematic [50]. Parametric studies are carried out to evaluate the influence of some parameters on the performance of different system configuration, pointing out external conditions, components performances and salt characteristics influence on the COP and productivity rate.…”

Section: Modellingmentioning

confidence: 99%

State of the art on gas–solid thermochemical energy storage systems and reactors for building applications

Solé

Martorell

Cabeza

2015

Renewable and Sustainable Energy Reviews

178

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Thermal energy storage (TES) is moving towards thermochemical materials (TCM) which present attractive advantages compared to sensible and phase change materials. Nevertheless, TCM are more complex to characterize at lab scale and also the implied technology, which belongs to the chemical engineering field, needs to be contextualized in the TES field. System configurations for thermochemical energy storage are being divided into open/closed storage system and separate/integrated reactor system. Reactors, which are the core of the system, are the focus of this paper. Different gas-solid thermochemical and sorption reactors for building applications are reviewed from lab to pilot plant scale, from 0.015 to 7850 dm 3. Fixed bed reactors are the most used ones. Mainly, mass transfer is limiting to achieve the expected energy density. The geometry of the reactor and contact flow pattern between phases are key parameters for a better performance.

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Section: Modellingmentioning

confidence: 99%

State of the art on gas–solid thermochemical energy storage systems and reactors for building applications

Solé

Martorell

Cabeza

2015

Renewable and Sustainable Energy Reviews

178

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“…Similarly, long or medium term thermal batteries are expected to significantly boost the use of solar thermal energy as well as the development of waste heat recovery. Numerous studies have shown that thermochemical or sorption storages are the most suitable technologies for long-term thermal storage, because of their high energy density (about 60-800 kWh•m -3 , (N'Tsoukpoe et al, 2009)) and the opportunity to achieve higher solar fraction in buildings for heating and domestic hot water production (Tanguy et al, 2012). Therefore, a lot of research efforts are currently concentrated on this type of storage process in order to push it through to the commercial stage.…”

Section: Introduction: Background and Operation Principlementioning

confidence: 99%

Thermodynamic study of a LiBr–H2O absorption process for solar heat storage with crystallisation of the solution

et al. 2014

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A heat storage process by absorption is studied in this paper. It is devoted to solar domestic systems. Energy and exergy studies are performed on the ideal cycle, and prove the contribution of the solutions crystallisation to the system storage density, with an improvement of 22%. A prototype has been built and tested in conditions compatible with domestic solar thermal collectors. The process has been proved successful for heat storage. The heat charging was more efficient than the discharging phase, with respective heat transferred in the range of 1 to 2 kW and 300 to 500 W, in typical solar domestic conditions. Crystallisation has been observed, and will increase the storage density but discrepancies were found between the ideal solution and the global prototype crystallisation behaviour, possibly due to some impurities presence and a slow dissolution kinetic.

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Adsorption Refrigeration Cycles

Wang

2014

Adsorption Refrigeration Technology

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Parametric studies of thermochemical processes for seasonal storage

Cited by 23 publications

References 1 publication

State of the art on gas–solid thermochemical energy storage systems and reactors for building applications

State of the art on gas–solid thermochemical energy storage systems and reactors for building applications

Thermodynamic study of a LiBr–H2O absorption process for solar heat storage with crystallisation of the solution

Adsorption Refrigeration Cycles

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