KiwiBacon wrote:Nope, power = torque x rpm. You can change the output speed (and torque) as much as you like, it doesn't give you any more power.
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i don,t think u understand the steam engine.
i try to explain what i,m getting at
i know u engineer and maybe i,m wrong, i,m sort of working this out in my head too, so don,t take offence
u put 40inch tyres on your wagon it will be a slug intil u lower the diff ratio,s, ok?
no more rpm or power or torque, but engine has better mechanical advantage over load
opposite is true too if engine had enuff torque you could drive around in top all day.
external combustion engine(steam) has many differances to internal combustion
excerpt from
http://www.mikebrownsolutions.com/stmpwr.htm"Engines of this type turn fairly slowly. 600 rpm is not an unusual or "slow" turning speed. Don’t let the speed mislead you. 600 rpm in a steam engine isn’t comparable to 600 rpm in a gasoline engine. 600 rpm in a gas engine is an "idle speed" that produces very little torque (or twisting force). A steam engine can produce maximum torque at almost 0 rpm. If you have ever seen an old 10 to 16 horsepower steam tractor at a "tractor pull" pulling against our modern 400+ horsepower gas engines, you will understand. The steam tractor always wins."10-16 hp beats 400 because its got more torque.
hp/power gets thrown out of window with steam
p.s your torsion bar compasion is right and wrong.
a torsion bar is not a engine but a storage device of energy.
if torque is put into the bar (by a engine and its easy if the engine has a low ratio gearbox
) then it could move a load
and how long it takes to move that load is measured in power (hp)
"The torque, or twisting force an engine is capable of producing is more of a measure of actual engine power than horsepower. A gasoline engine will produce torque in the range of 250-400 lbs. when the engine itself is over 300 cu. in. and over 200 horsepower. Steam and gas horsepower are not the same.
Most automobile engines will not reach maximum torque until they reach 2200 rpm. A steam engine can reach maximum torque when the piston is hardly moving.
Steam itself is literally unstoppable and, at pressures past what metal can endure, irresistible. For an example of the power of steam, consider the largest steam explosion in the history of the United States: Mount St. Helens.
" 95 Safari on brg 33,s/ 4age e class zuk (old faithfull)/ d class rig under construction.
