Le 30/11/2010 13:37, Erik Christiansen a écrit : > If we still lived out there the whole time, I'd do much of that. (And > get new deep cycle batteries for the 24v [1] inverter.) But we lost > between 600 and 700 large trees in the storms in 2006. That's several > thousand tonnes of hardwood, which will rot away in 50 years or so. > Burning fossil fuel in the petrol generator isn't as appealing as a > steam engine fooshing away quietly, with some boiler management > electronics, and an automatic stoker. (It's just that boilers are a bit > dangerous, unless you go for a monotube.) > >
I work in a company that makes electrification system for houses that are away from grid. In my opinion, photovoltaics panels + deep cycles batteries are the better way to insure a reliable power source. But with such a system, if you don't want it to cost you too much, you'll get limited energy ressource. Enough for the light and the basical home usage. Don't even expect to warm your water with it, for instance. So if you need sometimes large power amount, having a diesel generator coupled to you inverter is a ood idea. If you use a smart enough inverter, like one you can get from Xantrex, it can be programmed to automatically start generator when the required AC current go over a limit. This will preserve batteries. You can also do not use photovoltaics panels at all, and only use the generator to charge the batterie every 2 or 3 days, but in y opinion this is not a good solution. PV panel never give up, mecanical machine such a generator engine does. So having just enough pv panels to insure the basical energy production is a good idea. Regarding the generator, if full automatisation is not required, and considering you have a fairly amount of wood available, you can look for making a wood gas generator and run a old gasoline generator with it. I think this is really simpler thant steam engine, and really safer. With a lower efficiency anyway, but if you have lot of wood this will not be a problem. With some clever thinking, I think it is also possible to automatise the wood gas generator. For example starting the fire with a electrical hot air generator, like they do in pellets stoves. The you may have to make some automated system to feed wood in the burner, and you should be done. http://en.wikipedia.org/wiki/Wood_gas_generator http://fr.wikipedia.org/wiki/Gazog%C3%A8ne ------------------------------------------------------------------------------ Increase Visibility of Your 3D Game App & Earn a Chance To Win $500! Tap into the largest installed PC base & get more eyes on your game by optimizing for Intel(R) Graphics Technology. Get started today with the Intel(R) Software Partner Program. Five $500 cash prizes are up for grabs. http://p.sf.net/sfu/intelisp-dev2dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
