Innovating Works

PROME3THE2US2

Financiado
Production Method Of Electrical Energy by Enhanced Thermal Electron Emission by...
Production Method Of Electrical Energy by Enhanced Thermal Electron Emission by the Use of Superior Semiconductors The project aims to develop, validate and implement a novel solid-state conversion mechanism able to transform concentrated solar radiation into electric energy, at very high efficiency, with a direct conversion obtained by an enh... The project aims to develop, validate and implement a novel solid-state conversion mechanism able to transform concentrated solar radiation into electric energy, at very high efficiency, with a direct conversion obtained by an enhanced electron emission from advanced semiconductor structures. Its application is in high-flux concentrating solar systems, characterized by presently mature optical technology, reduced request for active components, high cost-effectiveness. The energy conversion exploits the high radiation flux, provided by solar concentrators, by combining an efficient thermionic emission to an enhanced photo-electron emission from a cathode structure, obtained by tailoring the physical properties of advanced semiconductors able to work at temperatures as high as 1000 °C. The high operating temperatures are also connected to the possibility to exploit the residual thermal energy into electric energy by thermo-mechanical conversion. ProME3ThE2US2 will develop a proof-of-concept converter working under vacuum conditions, composed of an absorber able to employ the solar infrared (IR) radiation to provide a temperature increase, a semiconductor cathode properly deposited on it, and a work-function-matched anode, separated from the cathode by an inter-electrode spacing. The concept novelty bases on (1) use of both bandgap and over-bandgap energy to generate electrical current; (2) additional use of sub-bandgap IR radiation, with a spectral energy not able to excite photo-emitters, for augmenting the thermionic emission from cathode, (3) engineered semiconductors, able to emit electrons at lower temperatures than standard refractory metals; (4) experimentation of a hetero-structured cathode for emission enhancement by an internal field; (5) recovery of exhaust heat from the anode by thermo-mechanical conversion. It is estimated that the proposed technology could achieve a conversion efficiency of 45% if used under high-flux irradiation conditions (~1000 suns). ver más
30/04/2016
CNR
4M€

Línea de financiación: concedida

El organismo FP7 notifico la concesión del proyecto el día 2016-04-30
Presupuesto El presupuesto total del proyecto asciende a 4M€
Líder del proyecto
CONSIGLIO NAZIONALE DELLE RICERCHE No se ha especificado una descripción o un objeto social para esta compañía.
Perfil tecnológico TRL 4-5