DLRRI-016

HTF lab

About this facility

The heat transfer fluid laboratory and its testing facilities offer services for the development of new fluids, processes and components as well as for analysing used fluids and components. Focus is on materials that are used in liquid condition like mineral oil, synthetic oils, silicone fluids or molten salt.

Sectors and technologies

Heat transfer fluids for parabolic trough, linear Fresnel, point focussing and electrically heated systems.

Technical specifications

8 parameters
Specification and testing of unused heat transfer fluidsDIN 51522
Testing and evaluation of used heat transfer fluidsDIN 51529
Specification and testing of silicone-based heat transfer fluidsIEC 62862-1-6
Composition and impurities of molten salts samplesASTM E1787, ISO 20702, ISO 10304-3, ISO 2479, ISO 2483, ISO
Thermal stability of organic heat transfer FluidsDIN 51528, ASTM D6743
Particle counting of fluidsISO 4406, SAE AS 4059, ISO 11500, ASTM D7647
Density of salts via volumetric expansionIn-house method from melting point up to 600 °C
Gas solubility of heat transfer fluidsmeasurement of dissolved gases with process gas

Available services

  • Indoor qualification of linear receivers for PTC
  • Qualification HTF based on particles
  • Characterization of HTF thermal properties
  • Characterization of HTF/HSM chemical stability
  • Qualification HSM/HTF
  • Metallography. Micro-hardness analysis. Thermogravimetric analysis
  • Analytical Services (Other Materials)
  • Gas analysis
  • Thermal analysis

Contact & links

Christian Jung, christian.jung@dlr.de Samples of a biphenyl diphenyl ether mixture.JPG (you can write here the file name(s) of the facility photo(s) and send them separately)

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