Re: STEAM DRIVEN MOPED
- Author: Terry (---.dsl.scrm01.sbcglobal.net)
- Verified User: 50vterry
- Date Posted: 03-28-08 19:23
Steve,
Exhausted steam is at ambient pressure. When it exhausts the pressure drops from cylinder pressure at the bottom of the piston stroke as it expands out into the atmosphere. As you expand a gas the temperature drops. So you end up with a warm mist.
Friends with steam cars like to watch folks panic when they stick their hand into the huge noisy steam cloud formed as they blow down their boilers at the end of the day. That exhaust usually isn’t even warm enough to heat up peanuts for a snack. If you were old enough to remember the old steam trains you would remember walking through the steam blown off onto the passenger platform… don’t remember hearing about passengers complaining of burns do you? They did complain about wet and oily clothes, however!
Those riders are much more at risk of scraping off skin from feet, legs or arms, or busting their unprotected heads in a fall than from getting injured from the steam. In fact they are more likely to get a hernia pushing that thing home when they run out of water than they are to get burnt on steam!
TH
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