Hello,
ENGINION (de) has created models of oxidative steam micro-turbines for heat / energy co-generation. The small portable EZEE model or larger (installed or fixed to the wall for a residence) are 10 times - expensive than gas turbines.
They work with any fuel, liquid or gaseous, which can be vaporized and mixed with air. The mixture, which passes through 2 ceramic foam cells with very fine pores, oxidizes without flame as in a thermal reactor. Since it cannot ignite, there is no pollution. Which is very important to us. The cells are maintained at a temperature of around 1200 ° by electronic management.
The thermal energy is transferred to water in a steam generator at 500 ° under 500 bars.
Steam is injected into the expansion chamber of the engine where a superheater, set to T ° by a cell, suddenly pushes it to 900 °. The brutal expansion drives the wankel-type engine, itself driving the electric generator. The water circuit is sealed and the steam returns to the tank via an exchanger-condenser.
The recent portable model provides 6kw and weighs 32kg.
STEAMCELL provides in a house or a room heat up to 25kw and 4,5 kw of electricity.
Enginion even managed to propel a VW with an adaptation !!
Otherwise, you have systems based on stirling engines, like SOLO, WHYSPERTECH, STIRLINGENGINE, etc. But all very expensive.
A +
