Performances and control aspects of steam storage systems with PCM: Key learnings from a pilot-scale prototype

García, Pierre; Largiller, Grégory

doi:10.1016/j.apenergy.2022.119817

Cited by 5 publications

(2 citation statements)

References 49 publications

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“…At the same time, when it comes to high-power accumulators (industrial applications), shell-and-tube accumulators are more often mentioned [58][59][60]. It is known that several pilot installations use heat accumulators with a PCM for industrial use with a capacity of up to 1.6 MW [61][62][63]. These installations are used for heating heat transfer fluids, including steam generation, and, in general, much is said about the operability of this technology.…”

Section: Introductionmentioning

confidence: 99%

Heat Storage as a Way to Increase Energy Efficiency and Flexibility of NPP in Isolated Power System

Lebedev,

Deev

2023

Applied Sciences

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This paper considers a thermal accumulator using phase transition materials as a way to increase the energy efficiency and maneuverability of nuclear power plants. A low-power nuclear power plant is the object of this study. Such nuclear power plants have a great potential for widespread implementation as sources of thermal and electrical energy for facilities of mineral and raw material as well as fuel and energy complexes located in distant regions. The main principles of development of low-power nuclear power plants are revealed. So, in the development of low-power nuclear power plants, experience in the creation and operation of shipboard nuclear power installations is widely used. The problems of NPP operation in daily maneuvering modes within an isolated power system are revealed. A method for improving the energy efficiency and maneuverability of nuclear power plants is proposed, in particular, through the use of thermal accumulators with a phase change material directly in the NPP circuit. A method of assessment of the dimensions of the heat accumulator and the amount of heat accumulating material is presented. A method of assessment of the efficiency of the accumulator application scheme is presented. The thermal scheme of a promising low-power nuclear power plant with an RITM-200 reactor is compiled. A scheme for switching on a heat accumulator with a phase change material to a scheme for regenerative heating of a turbine is proposed. The heat storage material selection is made, the main elements and characteristics of such an accumulator are determined, and the parameters of the heat transfer fluid’s movement through the accumulator are determined. A mathematical model of the heat exchange in an accumulator based on the finite difference method is compiled, and the simulation results are presented. The results of the experimental verification of the model are presented. As a result of the calculation of NPPs’ thermal schemes in the standard version and the version with a heat accumulator, the power increase in the turbine plant due to the application of accumulated heat in the accumulator discharge mode is determined.

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Section: Introductionmentioning

confidence: 99%

Heat Storage as a Way to Increase Energy Efficiency and Flexibility of NPP in Isolated Power System

Lebedev,

Deev

2023

Applied Sciences

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“…To date, latent-heat storages tested with evaporation in the heat transfer fluid (HTF) at up to 700 kW th power have been tested and published, among others, by Laing et al 4 , Garcia et al 5 , and Weller et al 6 , but none of these systems produces superheated steam, and were not integrated into operating industrial processes. In Garcia et al 5 , an extensive listing and discussion of the existing high-temperature latent-heat storages are well documented; this listing shows developmental steps in the technology but no integration outside of the laboratory environment.…”

Section: Introductionmentioning

confidence: 99%

Superheated steam production from a large-scale latent heat storage system within a cogeneration plant

Johnson,

Fiss

2023

Commun Eng

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During phase change, phase change materials absorb or release latent heat at a nearly constant temperature. Latent heat thus can be stored and integrated with evaporation/condensation systems such as steam generators within a relatively narrow range of operating temperature. Storage units and systems have been proven at pilot scale but none to-date have been integrated in industrial processes. This remains a challenge, due to the size of the systems and to hurdles in design, permission and build. Here we integrate a megawatt-scale latent heat storage into a cogeneration power plant in Wellesweiler-Neunkirchen, Saarland, Germany. The storage produced superheated steam for at least 15 min at more than 300 °C at a mass flow rate of 8 tonnes per hour. This provided thermal power at 5.46 MW and results in 1.9 MWh thermal capacity. Our study demonstrates the feasibility of using latent heat storage in the industrial production of superheated steam.

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Characterization by key performance indicators of SFERA-III project to ALTAYR packed-bed prototype

Rojas,

Alonso,

Rodríguez-García

et al. 2025

Applied Energy

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Performances and control aspects of steam storage systems with PCM: Key learnings from a pilot-scale prototype

Cited by 5 publications

References 49 publications

Heat Storage as a Way to Increase Energy Efficiency and Flexibility of NPP in Isolated Power System

Heat Storage as a Way to Increase Energy Efficiency and Flexibility of NPP in Isolated Power System

Superheated steam production from a large-scale latent heat storage system within a cogeneration plant

Characterization by key performance indicators of SFERA-III project to ALTAYR packed-bed prototype

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