The American inventor Oliver Evans developed the concept for a high pressure steam engine in 1794. Evans steam engine was a high pressure engine, which was a vast improvement in power over Watts low pressure engines. In high pressure steam engines, steam pressure is used to press a piston down, as opposed to pulling down in a low pressure system, with the low pressure created when the steam cools and contracts in volume. Evans sent his plans to England for scientific review, and many feel that their teachings were read and understood by Englishman Richard Trevilthick.
Trevilthick first built a steam engine to operate a water pump in Cormish mines, and later built a locomotive in 1807 (the first in the world) and still later an automobile.
It’s great that more people are focusing on making better environmental choices. Plus technology is making it more economical now, and that’s what people really notice. Wind energy, solar power, hybrids and zap EV’s, our choices are good. There are now electric cars being sold everyday, you just plug it into a regular power outlet. When people test drive them they say it’s far more fun to drive an EV.
Posted by: Web | March 24, 2008 at 05:39 PM