Publications de Clemens Gregor Suter

Optical characterization of a solar concentrating dish system

Sophia Haussener, Clemens Gregor Suter, Isaac Thomas Holmes-Gentle

Solar dishes concentrate the quasi-collimated sun light towards a focal point. Typically, the optical characterization consists of experimental flux map measurements and Monte-Carlo ray-tracing (MCRT) simulations, which are fitted based on experimental dat ...

Institute of Physics2024

Experimental and numerical pore-scale characterization of multi-mode heat transfer in porous ceramics exposed to a transverse heat flux

Sophia Haussener, Clemens Gregor Suter

We present experimental and computational approaches to characterize the multimode heat transfer in an open-cell Si-SiC foam exposed to a transverse heat flux. The experimental setup consists of a 5×5×10 cm3 parallelepipedal 10ppi foam (83% porosity) place ...

Institute of Physics2024

Kilowatt-scale solar hydrogen production system using a concentrated integrated photoelectrochemical device

Sophia Haussener, Saurabh Yuvraj Tembhurne, Clemens Gregor Suter, Isaac Thomas Holmes-Gentle

The production of synthetic fuels and chemicals from solar energy and abundant reagents offers a promising pathway to a sustainable fuel economy and chemical industry. For the production of hydrogen, photoelectrochemical or integrated photovoltaic and elec ...

2023

Multi-configuration evaluation of a megajoule-scale high-temperature latent thermal test-bed

Sophia Haussener, Maurizio Barbato, Selmar Rudolf Binder, Alberto Ortona, Nithin Mallya, Clemens Gregor Suter

Thermal energy storage via latent heat provides an energy dense solution and, during discharge, a hot stream at a well-defined temperature. Utilizing metal phase change materials (PCMs) and high-temperature operation might enable fast (dis)charging and app ...

PERGAMON-ELSEVIER SCIENCE LTD2022

Enhanced Solar-to-Fuel Efficiency of Ceria-Based Thermochemical Cycles via Integrated Electrochemical Oxygen Pumping

Sophia Haussener, Meng Lin, Clemens Gregor Suter

The solar thermochemical cycle based on ceria is a promising route for renewable fuel production. The solar-to-fuel efficiency of a thermochemical reactor is highly dependent on the oxygen removal during the reduction step. Conventional nitrogen sweeping ( ...

AMER CHEMICAL SOC2022

Integrated solar-driven high-temperature electrolysis operating with concentrated irradiation

Stefan Diethelm, Jan Van Herle, Sophia Haussener, Meng Lin, Clemens Gregor Suter

High-temperature electrolysis for reducing H2O (and CO2) to H2 (and CO) converts concentrated solar energy into fuels and chemical feedstock. We invented an integrated reactor concept comprising a solar cavity receiver for reactant heating, a solid oxide e ...

2022

Dynamic system modeling of thermally-integrated concentrated PV-electrolysis

Sophia Haussener, Saurabh Yuvraj Tembhurne, Clemens Gregor Suter, Isaac Thomas Holmes-Gentle

Understanding the dynamic response of a solar fuel processing system utilizing concentrated solar radiation and made of a thermally-integrated photovoltaic (PV) and water electrolyzer (EC) is important for the design, development and implementation of this ...

2020

Effective conductivity of porous ceramics in a radiative environment

Jérémy Raphaël Mora-Monteros, Sophia Haussener, Clemens Gregor Suter

The knowledge of the effective thermal conductivity, taking into account conduction and radiation, is crucial for the accurate prediction of the thermal behavior of porous foams, especially in an environment where radiation is dominating. We present a comb ...

2020

Inverse Analysis of Radiative Flux Maps for the Characterization of High Flux Sources

Sophia Haussener, Gaël Jean Clément Levêque, Clemens Gregor Suter

The reconstruction of the angular and spatial intensity distribution from radiative flux maps measured in high flux solar simulators or optical concentrators is an ill-posed inverse problem requiring special solution strategies. We aimed at providing a sol ...

2019