Parametric study of filler size and properties for a liquid-metal thermal energy storage

Niedermeier, Klarissa; Müller-Trefzer, Franziska; Marocco, Luca

doi:10.1016/j.applthermaleng.2022.118568

Cited by 3 publications

(2 citation statements)

References 27 publications

(36 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…31 In further numerical works, the cyclic and standby behavior of a storage system with lead-bismuth and a packed bed with varied filler parameters and properties was theoretically analysed. [32][33][34] Recently, a packed-bed storage system with eutectic lead-bismuth as the heat transfer fluid has been demonstrated on a lab-scale (1 kWh) at KIT. A packed bed of ceramic fillers (zirconium silicate) was used with temperatures of up to 380 C. 35 The results showed that such a system is feasible and performs more efficiently than a single-medium thermocline storage tank with lead-bismuth only.…”

Section: Heavy Liquid Metal Basedmentioning

confidence: 99%

“…When compared with liquid Na and solar salt in a packed‐bed storage, eutectic lead‐bismuth showed the highest efficiencies during discharge/charge and standby 31 . In further numerical works, the cyclic and standby behavior of a storage system with lead‐bismuth and a packed bed with varied filler parameters and properties was theoretically analysed 32‐34 . Recently, a packed‐bed storage system with eutectic lead‐bismuth as the heat transfer fluid has been demonstrated on a lab‐scale (1 kWh) at KIT.…”

Section: Past Work—a Brief Overview On Liquid Metal‐based Thermal Ene...mentioning

confidence: 99%

See 1 more Smart Citation

A perspective on high‐temperature heat storage using liquid metal as heat transfer fluid

Niedermeier

2023

Energy Storage

Self Cite

View full text Add to dashboard Cite

Energy storage systems are essential to secure a reliable electricity and heat supply in an energy system with high shares of fluctuating renewable energy sources. Thermal energy storage systems offer the possibility to store energy in the form of heat relatively simply and at low cost. In concentrating solar power systems, for instance, molten salt‐based thermal storage systems already enable a 24/7 electricity generation. The use of liquid metals as heat transfer fluids in thermal energy storage systems enables high heat transfer rates and a large operating temperature range (100°C to >700°C, depending on the liquid metal). Hence, different heat storage solutions have been proposed in the literature, which are summarized in this perspective. Based on these, future technical advances are suggested such as reducing the liquid metal share in the heat storage, using waste material as storage medium or using liquid metal as heat transfer fluids not only in sensible, but in latent or thermochemical energy storage systems. The use of waste material in a packed bed configuration with 5% porosity, for example, can bring down the storage material costs to 2%–3% of the costs of a liquid metal‐only storage system. Furthermore, future application fields beyond concentrating solar power are proposed: supply of industrial process heat, waste heat integration and power‐to‐heat‐to‐power processes.

show abstract