06/C260

 

Adecuación de materiales y dispositivos para la explotación del portador de energía hidrógeno

Adaptation of materials and devises for the exploitation of the hydrogen energy carrier

 

Director: PERETTI HOLLEMAERT, Hernán Américo

Correo electrónico: peretti@cab.cnea.gov.ar

 

Integrantes: CORSO, Hugo Luis; MELNICHUK, Maximiliano; RUIZ, Fabricio Carlos; CUSCUETA, Diego Javier; AYALA, Carlos

 

Resumen Técnico: El resumen técnico tiene por objetivo la aprehensión sintética de su proyecto, será almacenado en el sistema computarizado de la Secretaría de Ciencia, Técnica y Posgrado debe permitir el fácil acceso a la información. Haga una síntesis de los objetivos, la línea de investigación, la hipótesis de trabajo, la metodología, producto a obtener, sistema de transferencia y beneficios esperados. De ninguna manera debe exceder el espacio disponible en el formulario.

 

Summary: Hydrogen is a non-polluting energy carrier that will have to be forcedly applied, joint to alternative clean and sustainable primary energy sources, if the environment is to be preserved at medium and long terms. Though hydrogen is, from all other fuels, the one bearing the highest energy content by weight (33kWh/kg), due to its low density, one kilogram of hydrogen occupies more than 12 cubic meters at room temperature. For this reason, a key point for the use of hydrogen stands on finding a practical, sure and cheap way for its storage. One of the possible alternatives is to take advantage of its capacity to form hydrides with other elements by means of a reversible phase transformation. This makes possible to store hydrogen as a solid hydride, occupying even less volume than liquefied hydrogen. In this way, metal hydrides offer the possibility of storing hydrogen from the gaseous phase. At the same time, in alkaline liquid media, they present good electrochemical properties to store energy in rechargeable electrical batteries, as component of the negative electrode. The aim of the present project is the development and concretion of experimental prototype devises based on metal hydrides, allowing the storage of energy by means of hydrogen to make it possible its further re-conversion and use in stationary and/or mobile installations. Two types of devises are involved: 1) Hydrogen storage units as hydride from the gaseous phase, taking advantage of the reversible phase transformation of metal hydrides; 2) Rechargeable electrical batteries of the Nickel-Metal Hydride type (Ni-MH). In both cases the idea is to arrive to the construction of prototypes, having optimized the design characteristics, as well as the elaboration and selection of the necessary materials.