[BC] External combustion

[Phil Alexander]

On 16 Jan 2006 at 19:35, Ron Youvan wrote:

> >>Yet today, I see no advocates for the tried and true
> >>external combustion steam engines !
> 
> > There are a lot of them in use at sea in ships and they are used in nuclear
> > power plants and many conventional fired electrical power plants. I advocate
> > them under certain conditions.
> 
>    (I can't figure out what thread the comment above came from.)
> Locomotive engines had a power efficiency of 12%, with steam condensers 18%.
> Diesel engines 35%, that is why the steam locomotives are now Toyotas and Nissans
> and CAT power goes into ships.

A modern fossil fuel steam generating station will 
have an efficiency upward of 40%. Same is true for
a large ship under steam power. Superheated steam,
high pressure boilers with economizers and vacuum
condensers do improve the Rankine cycle just a tad.


Phil Alexander, CSRE, AMD
Broadcast Engineering Services and Technology 
(a Div. of Advanced Parts Corporation) 
Ph. (317) 335-2065   FAX (317) 335-9037





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