Login
or
Register
Home
»
Trains Magazine
»
Forums
»
General Discussion
»
turbine territory
Edit post
Edit your reply below.
Post Body
Enter your post below.
[quote]QUOTE: <i>Originally posted by rdganthracite</i> <br /><br />[quote]QUOTE: <i>Originally posted by RPRiebe</i> <br />[brDave: <br />Turbines are not driven by heat, turbines are driven by the force of the exhaust. <br />The trick of designing any (including auto units) turbine driven by combustion exhaust, is to design a system that can deal with the heat, which is in four figures, even in a piston engine turbine. <br />Efficient combustion produces two things, among others, greater output and greater heat; i.e. the reason the hottest part of any fire, is where the most efficient (complete) combustion is taking place. <br />[/quote] <br /> <br />Oh but they are driven by the heat. You had better brush up on your thermodynamics. The real trick to efficient engines, be they reciprocating steam. turbine steam, otto cycle, diesel cycle, sterling cycle, or gas turbine, is to maximize the use of the heat generated. During the expansion of the gas in the power stroke, or through the turbine, the energy to pust the pistons or the blades comes from the heat of the gas. The temperature of the gas in the exhaust of a turbine is much cooler than the same gas at the inlet of the power blades. <br />[/quote] <br /> <br />Yes if you want to use language better suited for a technical thesis, but this is not a tech journal. <br />The exhaust from the small turbine in the Chrysler turbine car was 1,200 degree f until the regenerator reduced it to 500 degrees f. <br /> <br />I am sure the turbines in the locomotives exhaust was hotter than the car and if it was parked under a overpass, as the story told to me, says it was, even at 500 degrees, it will seriously damage the pavement. <br /> <br />Worries about the heat given off by the exhaust in the Chrysler turbine car, is one of the many reasons it was cancelled. <br /> <br />Chad: <br />A piston engine turbine, is what is called a turbo. It is a turbine style supercharger driven by the engines exhaust, verses a basically similar, in compression funtion, unit driven mechanically off of the engine. <br />Bob
Tags (Optional)
Tags are keywords that get attached to your post. They are used to categorize your submission and make it easier to search for. To add tags to your post type a tag into the box below and click the "Add Tag" button.
Add Tag
Update Reply
Join our Community!
Our community is
FREE
to join. To participate you must either login or register for an account.
Login »
Register »
Search the Community
Newsletter Sign-Up
By signing up you may also receive occasional reader surveys and special offers from Trains magazine.Please view our
privacy policy
More great sites from Kalmbach Media
Terms Of Use
|
Privacy Policy
|
Copyright Policy