Innovative 1000K sodium loop for qualification of new materials for applications in CSP field

Onea, Alexandru; Hering, W.; Ulrich, S.; Rieth, M.; Weisenburger, A.; Reiser, J.; Lenk, Stephan; Robert, T F Ah King; Vielhaber, Steffen; Baumgärtner, Siegfried; Ziegler, Rainer; Stieglitz, Robert

doi:10.1063/5.0087110

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2024

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“…flow sensors) for high temperature applications in CSP plants. Several high temperature sodium facilities have been erected at KIT to fulfill these tasks [3,4]. The lack of appropriate instrumentation for high temperature applications motivated the development at HZDR, Germany [5,6] and the experimental investigation at KIT, Germany of an innovative eddy current flow sensor.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigations and Qualification of Innovative Flow Sensors in the 1000 K SOLTEC-2 Sodium Loop

Onea,

Krauter,

Hering

et al. 2024

SolarPACES Conf Proc

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Liquid metals, such as sodium, have been already successfully used as heat transfer fluids (HTF) in concentrating solar power (CSP) plants up to ~550 °C. Even higher temperatures can be achieved and are envisioned for future CSP plants. The lack of measuring flow rate devices at high temperatures for liquid metals motivated this study. The present paper presents the experimental mock-up and the experimental results obtained with the SOLTEC-2 facility for two test flow sensors, one innovative eddy current flow sensor (ECFM) developed at HZDR, Germany and a built-in permanent magnet fly-wheel sensor for runs up to a sodium temperature of 700 °C. The signals of the sensors are compared also against the power level of the sodium pump.

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