flantoons

Thanks, yes I understand what you say...but I am looking for an EXternal combustion or explosion to create gas pressure to then feed a "steam" engine.

Thanks insane-alien. I was thinking maybe a mini explosion would create gas under pressure, to drive the engine...but how can I make these mini explosions very cheaply?

Hello, I am trying to re-invent the steam engine. Is there a way to use volatile chemicals to create gas expansion, that is cheaper than boiling water to produce steam? Thanks for your time and consideration.