Re: Material With High Elastic Energy Density?

I think that the liquid nitrogen idea might actually work (excuse me if
I'm wrong - I haven't thought about it for very long). It reminds me of
the old "fireless locomotives" (e.g. see
http://www.nrhs.com/web_exclusives/fireless_cooker/) in which there is
no fire - the boiler is filled with very hot water and steam under
pressure - and as the steam is used to propel the vehicle, the reduced
pressure in the boiler will allow more of the water to vapourise
into... steam!

.

Relevant Pages

  • General impressions of an old ElEspresso
    ... Portafilter locks into bottom of boiler ... and there are slots to view the water elvel through. ... alt.coffee readings reminded me to turn the steam wand on and wa-la!, ... Make quite a decent cup of espresso. ...
    (alt.coffee)
  • Re: Gaggia Evolution sometimes running out of steam
    ... When water starts coming through, ... just power, brew & steam. ... through, the boiler has filled, so you can stop. ... just making myself a latte I don't bother refilling before steaming. ...
    (alt.coffee)
  • Re: Renewable energy alternative
    ... > water in a hurry. ... Look up 'choked compressible flow'. ... You'll find that with steam, once the downstream pressure drops below about ...
    (sci.energy.hydrogen)
  • Re: Renewable energy alternative
    ... > water in a hurry. ... Look up 'choked compressible flow'. ... You'll find that with steam, once the downstream pressure drops below about ...
    (sci.energy)
  • Re: continuation of pressure vs temp in a PIDed HX
    ... interested in steam boiler temperature per se, ... But since it is the hot water that gives rise to the steam pressure, ...
    (alt.coffee)