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Nuevo convertidor solar termoiónico

Resumen

Tipo:
Oferta Tecnológica
Referencia:
TOIT20141120001
Publicado:
01/12/2014
Caducidad:
01/12/2015
Resumen:
Un instituto de investigación italiano ha desarrollado un dispositivo de generación de electricidad a partir de concentradores solares y cogeneración de agua caliente a baja temperatura. Este dispositivo puede emplearse en sistemas de un solo uso o plantas de producción en arrays lineales. El sistema consta de módulos lineales con un espejo (parabólico) que concentra la radiación solar en un cátodo situado en el centro de un tubo de vacío suspendido en los extremos, con escudos internos colocados en las paredes, y ánodos enfriados por conductos internos. Se buscan socios industriales para desarrollar aplicaciones individualizadas en el campo de energía y energías renovables. El instituto está interesado en establecer acuerdos de licencia y cooperación técnica.

Details

Tittle:
Innovative thermoionic solar converter
Summary:
An Italian institute of research has realized a device for the generation of electricity from concentration solar source and the cogeneration of hot water at low temperature. It can be used in systems for single user or production plants in linear arrays. Partners sought are industrial, for customised application in the field of energy and renewable energy, through licence agreements or technical cooperation agreements.
Description:
This device - essentially a vacuum tube - is designed to operate at the highest temperature tolerated by conductive refractory materials and allows to exploit the full thermal gradient of a top thermodynamic cycle to the lowest available temperature to the cooling system.
This allows to obtain particularly high electrical conversion efficiency - estimated in the order of 45% - and a recovery of cogeneration in the order of 15%; furthermore, it allows obtaining an estimated efficiency of 60%, occupying an area which represents a half of the current plant (for the same amount of produced electric power).
The system is composed of linear modules comprising a mirror (plane parabolic) that concentrates the solar radiation on a cathode placed at the center of a vacuum tube suspended at the ends, with internal shields placed on the walls, and anodes cooled by internal piping. It's assumed a conversion module of 1kW of power with 1 m of length, opening mirrors of about 2.5 m, with a concentration ratio in the order of 100-200.
Advantages and Innovations:
The current thermionic converters exhibit very low efficiency owing to heat losses due to the very high operating temperatures.
This thermoionic solar converter solves this problem by using measures to limit thermal losses, both internal and external. This allows to increase the operating temperatures and the ¿t to the maximum levels tolerated by refractory materials and hence the efficiency.
Stage of Development:
Prototype available for demonstration
IPs:
Patents granted
CommeR Statunts Regarding IPR Status:
Patent granted in Italy and extended through PCT procedure.

Partner sought

Type and Role of Partner Sought:
Partners sought are industrial, in the field of energy and renewable energy, but other cooperation that may occurr will be considered too.

Possible industrial applications: Installing 6 Modules x1kW it's possible to achieve a production plant for individual home users with a footprint of 15 square meters instead of 42 square meters needed to the current commercial photovoltaic, and a cogeneration thermal power of 1.5 kW to 80°; obviously, it's possible to realize manufacturing plants by installing several rows of connected modules.

Role of the partners: they will be required to adapt the converter to their industrial needs - the technology can be used in systems for single user or production plants in linear arrays, for instance - for customised application in the field of energy and renewable energy.

Licence agreements are preferred, technical cooperation agreements are considered.

Client

Type and Size of Client:
R&D Institution
Already Engaged in Trans-National Cooperation:
Si
Languages Spoken:
English
Italian

Keywords

Technology Keywords:
04005005 Energía térmica / solar
04002005 Generadores, motores eléctricos y conversores de potencia
04002012 Otra maquinaria