Quote:
Originally Posted by freebeard
vs
Did anyone bring popcorn?
Steam for lift
Hydrogen gas has a standardized lift of 11.19 N/m3. Helium has 10.36 N/m3 lift, while hot air varies from 2.7 to 3.2N/m3. Pure steam has 6.26 N/m3
Find an article on the relative merits of the various lifting gases, including losers like methane and ammonia at Steam Balloon JBFA Article
'Steam' power
The world's tiniest [theoretical] engine uses water as a working fluid, but without the phase change:
https://www.washingtonpost.com/news/...allest-engine/ |
Kinda not sure where you were going with that, but here's an article on a two stroke racing bike with a water tuned exhaust. Got no idea if it'd work in a 4 stroke gasser or diesel, but interesting nonetheless.
http://www.saltmine.org.uk/randy/h2o-injection.html