Il Polo per la ricerca e lo sviluppo delle tecnologie dell'idrogeno nella regione Lazio: obiettivi, strategie, attività

2009-03-26Sala anfiteatro, Via Roma 253, CagliariVerso l'idrogeno. Convegno divulgativo sulle iniziative per la diffusione delle tecnologie dell’idrogeno in Itali

Efficiency comparison between FC and ice in real urban driving cycles

A deep experimental campaign on road carried out in an urban route had been allowed to acquire a huge database concerning the real operating conditions of several vehicle typologies, both conventional and innovative (hybrids). In this paper, using a different approach seen as the current one utilised in the type approval procedure, these experimental data will be the starting working base to accomplish a whole energy comparison between a PEMFC vehicle and a EURO 4 vehicle. The in-house model built in the University of Rome lab will be adapted and applied to an automotive load simulation based on measured driving acquisitions. A complete picture on the energy consumption and pollutant emission of the two vehicle typologies in their real use is provided. This encompasses also an examination of the fuel production, in order to extend the analysis to all the energy chain and perform a well-to-wheel study

Renewable and hydrogen energy integrated house

The residential sector accounts for about a third of the total world energy consumption. Energy efficiency, Renewable Energy Sources and Hydrogen can play an important role in reducing the consumptions and the emissions and improving the energy security if integrated (Efficiency, Res, Hydrogen) systems are developed and experimented. The paper analyzes a real residential 100 square meters house, where energy efficiency measures and RES technologies have been applied, sizing a hydrogen system (electrolyzer, metal hydrides and fuel cell) for power backup, taking into consideration its dynamic behavior, experimentally determined. The technologies used are already available in the market and, except hydrogen technologies, sufficiently mature. Through energy efficiency technologies (insulation, absorbers, etc), the maximum electrical and thermal power needed decreases from 4.4 kW(e) to 1.7 kW(e) (annual consumption from 5000 kWh to 1200 kWh) and from 5.2 kW, to 1.6 kW(t) (annual consumption from 14,600 kWh to 4500 kWh) respectively. With these reduced values it has been possible to supply the consumptions entirely by small photovoltaic and solar thermal plants (less than 10 m(2) each). The hydrogen backup even if remains the most expensive (versus traditional batteries and gasoline generator), satisfying all the electric needs for one day, increases the security and allows net metering. Moreover the low-pressure hydrogen storage system through metal hydrides guarantees system safety too. Finally the system modularity can also satisfy higher energy production. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved

SIMEA, social impact method of energy analysis

Beijing, Chin