Experimental Validation of the Innovative Thermal Energy Storage Based on an Integrated System “Storage Tank/Steam Generator”

Abstract.A molten salt helical coil steam generator is an alternative to kettle-or drum-type evaporators which are currently used in commercial-scale solar thermal power plants. A 300 kW prototype was tested during the OPTS project at ENEA. The experimental results presented in this paper have been used to validate a detailed heat transfer analysis of the whole system. The heat transfer analysis deals with the study of both the overall heat transfer coefficient and the shell-side heat transfer coefficient. Due to the specific features of this type of system, no correlations were available in the literature. A new numerical model to predict the performance of large-scale systems is also presented.

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“…The feed water flow rate was also lower than the design point. The data also have been published in [10].…”

Section: Resultsmentioning

confidence: 50%

Analysis of a helical coil once-through molten salt steam generator: Experimental results and heat transfer evaluation

Seubert

Rojas

Rivas

et al. 2016

AIP Conference Proceedings

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“…-Heat exchangers for flue gas from a gas turbine peak power plant [57] -Heat exchangers for thermal oil [58] -Steam generators [59][60][61][62][63] Besides power and storage components, there are some additional molten salt components, as well as fundamental and process technology related aspects of technological importance. Objectives are for example enhanced reliabilities, higher operation temperatures and higher measurement accuracies, as well as reduced OPEX and CAPEX.…”

Section: Integration Of Molten Salt Storage In Csp Plantsmentioning

confidence: 99%

Molten Salt Storage for Power Generation

Bauer

Odenthal

Bonk

2021

Chemie Ingenieur Technik

105

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Storage of electrical energy is a key technology for a future climate‐neutral energy supply with volatile photovoltaic and wind generation. Besides the well‐known technologies of pumped hydro, power‐to‐gas‐to‐power and batteries, the contribution of thermal energy storage is rather unknown. At the end of 2019 the worldwide power generation capacity from molten salt storage in concentrating solar power (CSP) plants was 21 GWhel. This article gives an overview of molten salt storage in CSP and new potential fields for decarbonization such as industrial processes, conventional power plants and electrical energy storage.

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“…Chang et al (2016) investigated the impact of modifications of the inner tank walls on the thermal performance of thermocline storage tanks. Gaggioli et al (2015) presented a molten salt storage system with an embedded heat exchanger for steam production. This embedded approach promises cost reductions and a better thermal stratification.…”

Section: Thermocline Storage Conceptmentioning

confidence: 99%

Investigation of the long-term stability of quartzite and basalt for a potential use as filler materials for a molten-salt based thermocline storage concept

et al. 2018

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Experimental Validation of the Innovative Thermal Energy Storage Based on an Integrated System “Storage Tank/Steam Generator”

Cited by 27 publications

References 0 publications

Analysis of a helical coil once-through molten salt steam generator: Experimental results and heat transfer evaluation

Analysis of a helical coil once-through molten salt steam generator: Experimental results and heat transfer evaluation

Molten Salt Storage for Power Generation

Investigation of the long-term stability of quartzite and basalt for a potential use as filler materials for a molten-salt based thermocline storage concept

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