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Research Last update: Jan 14, 2017
Topics Solar photo-thermionic conversion  →
Renewable fuels from algae  →
Photovoltaics with 2D materials  →
Energy conversion in porous media  →
Thermo-electro-chemical storage  →
Past research projects  →
TAU logo
Solar photo-thermionic conversion Back to Top  ↑
A novel approach to solar electricity generation, driven by combined photonic and thermal excitation of charge carriers in a semiconductor, is investigated. Theoretical results indicate the potential of achieving about 40% efficiency at reasonable concentration and temperature. This research investigates the fundamentals of the conversion process using Si and nano-diamond films for the converter, and will demonstrate its operation under concentrated light.

Project partners:
Yossi Rosenwaks, TAU
Alon Hoffman, Technion

Funding: Israel Ministry of Energy

electron emission experiment
Biomass deconstruction for biofuels production Back to Top  ↑
A process is developed for decomposition of biomass using hydrolysis in sub-critical water, to produce into simple biomolecules that can be fermented in a follow up process into biofuels such as ethanol. Increased yield of bioethanol is expect in comparison with fermentation with standard acid hydrolysis. The process is developed and demonstrated for the marine macroalgae Ulva, a new and promising feedstock for production of liquid biofuels.

Project partners:
Alex Golberg, TAU
Lior Gutman, Hebrew University

Funding: Israel Ministry of Energy

algae picture
Photovoltaics with 2D materials Back to Top  ↑
2-D materials such as graphene and transition metal dichalcogenides (MX2) show interesting optical and electronic properties that make then candidates for photovoltaic conversion. The properties of single and multiple layers of these materials are investigated, methods for fabrication and assembly of the layers into PV devices are developed, and performance of these devices will be characterized.

Project partners:
Ariel Ismach, TAU

Funding: Israel Ministry of Energy

2 D materials picture
Energy conversion in porous media Back to Top  ↑
Ceramic and metallic porous media are widely used to facilitate transport of heat and mass in various applications, including solar volumetric receivers and chemical reactors. The structure of the porous medium is optimized to enhance convective and radiative transport processes for specific applications, leading to diminished losses and improved performance.

efficiency of solar absorber
Thermo-electro-chemical storage Back to Top  ↑
A novel energy storage concept is investigated. The storage process is asymmetric, where charging is done with a thermo-chemical reaction, while discharge is done electr-chemically as in standard batteries. A thermodynamic analysis shows that the theoretical conversion efficiency of this cycle can be very high.

TECS cycle diagram
Past research projects Back to Top  ↑
Photon-Enhanced thermionic electron emission (PROMETHEUS)
Funding: European Commission FP7
Project partners: CNR, Italy; Fraunhofer ISE, Germany; Technion, Israel; Abengoa research, Spain; Ionvac Process, Italy; Solaris Photonics, UK; Exergy, UK
PROMETHEUS project logo
Solar electricity with thermionic emission (EPHESTUS)
Funding: European Commission FP7
Project partners: CNR, Italy; Prysmian, Italy; SHAP Solar Heat And Power, Italy; Tubitak, Turkey; Consortio Roma Ricerche, Italy; Maya, San Marino
EPHESTUS project logo
Solar Steam-Injection Gas Turbine
Funding: Israel Ministry of Science and Technology
Project partners: S. Iniyan, L. Suganthi, Anna University, Chennai, India

Volumetric solar absorbers
Funding: Israel Ministry of Science
Project partner: Cyril Caliot, CNRS

Selective coatings for high temperature solar absorbers
Funding: Israel Ministry of Science
Project partners: Daniel Mandler, HU; Shlomo Magdassi, HU; Daniel Feuermann, BGU; Beni Steinberg, TAU

Phase Change storage for solar heat
Funding: Israel Ministry of Science
Project partners: E. Palomo del Barrio, U. of Bordeaux; G. Ziskind, Ben Gurion U.

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