Conceptual Design of the CSP Lead Demonstrator SOLEAD

Piazza, Ivan Di; Tincani, A.; Marinari, R.; Valdiserri, Massimo; Bassini, Serena; Rinaldi, Antonio; Serra, MC; Antonelli, A.; Delfino, Daniele

doi:10.5185/amlett.2020.061531

Cited by 5 publications

(4 citation statements)

References 9 publications

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“…Within the framework of the H2020 project NEXTOWER, a Pb-based demonstrator SOLEAD was designed to be integrated into a 100 kW CSP plant that used air as the heat transfer fluid in the thermal receiver in 2020. The concept is a one-tank direct heat storage configuration with two integrated heat exchangers using liquid Pb as the storage medium at temperatures from 600 C to 750 C. 28 The storage tank was 1.2 m in diameter and 3.6 m in height. Complementary material tests of 800H steel with an FeCrAl coating in liquid Pb at 800 C showed sufficient resistance against the liquid metal.…”

Section: Heavy Liquid Metal Basedmentioning

confidence: 99%

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

Niedermeier

2023

Energy Storage

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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.

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Section: Heavy Liquid Metal Basedmentioning

confidence: 99%

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

Niedermeier

2023

Energy Storage

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“…Piazza et al [16] report on the design of a liquid lead storage tank with temperatures of 600-750 • C in the frame of the EU project NEXTOWER (concentrating solar tower application). The material used was Alloy 800 with an internal cladding of FeCrAl, which showed good resistance against the liquid metal at 800 • C [17].…”

Section: Introductionmentioning

confidence: 99%

Design of the LIMELIGHT Test Rig for Component Testing for High-Temperature Thermal Energy Storage with Liquid Metals

Niedermeier,

Lux,

Purwitasari

et al. 2023

Processes

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Thermal energy storage systems for high temperatures >600 °C are currently mainly based on solid storage materials that are thermally charged and discharged by a gaseous heat transfer fluid. Usually, these systems benefit from low storage material costs but suffer from moderate heat transfer rates from the gas to the storage medium. Therefore, at the Karlsruhe Liquid Metal Laboratory, liquid metals are investigated as alternative heat transfer fluids for such heat storage systems, making use of the broad temperature range, in which the metals are in a liquid state, and their efficient heat transport capabilities. In this work, the design and construction of a high-temperature test rig using liquid lead is presented. The goal of the experiments is to demonstrate the operability of a pump, valves and measurement equipment at 700 °C in a challenging corrosive environment. Based on material pre-tests in stagnant lead at 700 °C, which are also shown in this study, aluminizing and pre-oxidation of the pipes and components are applied for enhanced corrosion protection.

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“…Sodium, for example, is liquid between 98 and 883 • C (1 bar) and the eutectic mixture of lead and bismuth (LBE) is liquid between 125 and 1533 • C (1 bar) [7,8]. Therefore, they have been proposed as heat transfer fluids in concentrating solar power plants [9,10,5,11] and also for the use in thermal energy storage systems [12,13,14,15].…”

Section: Introductionmentioning

confidence: 99%

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

Niedermeier

Müller-Trefzer

Marocco

2022

Applied Thermal Engineering

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Conceptual Design of the CSP Lead Demonstrator SOLEAD

Cited by 5 publications

References 9 publications

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

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

Design of the LIMELIGHT Test Rig for Component Testing for High-Temperature Thermal Energy Storage with Liquid Metals

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

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