Tobias Klein

Tobias Klein is a Group Leader at the Institute of Advanced Optical Technologies - Thermophysical Properties within the Department of Chemical and Biological Engineering (CBI) at Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Germany. His research focuses on the thermophysical characterization of working fluids in energy technology, combining conventional experiments, light scattering techniques, and molecular dynamics (MD) simulations to study equilibrium and transport properties like density, surface tension, viscosity, and diffusion coefficients.

The group investigates systems relevant to energy transport and storage, including

• Electrolyte mixtures
• Hydrocarbon-gas solutions
• Polymer-gas solubility
• Condensation heat transfer in hydrocarbon mixtures

Their work establishes structure-property relationships and semi-empirical equations for predicting thermophysical behavior.

Recent publications highlight studies on

• Diffusion in electrolytes and hydrocarbons
• Surface tension of hydrogen carriers
• Condensation dynamics on structured surfaces
• Transport in polymer melts

using dynamic light scattering (DLS) and MD simulations. The group contributes to IUPAC technical standards for diffusion coefficient definitions.