Re: (erielack) Inaccuracies in models....

["William Horn" <tonyhorn_@_earthlink.net>]

Check old "Erie Railfan" copies for an article detailing the plastic 4-6-2
to Erie details.

Tony Horn
ELHS #2

- ----- Original Message -----
From: "Schuyler G Larrabee" <sgl2_@_ix.netcom.com>
To: <Hhaines_@_aol.com>
Cc: "Erie Lackawanna List" <erielack_@_lists.railfan.net>
Sent: Tuesday, May 01, 2001 10:02 PM
Subject: Re: (erielack) Inaccuracies in models....


> oops!  You are completely correct.  Superheaters >>super heat<< the steam,
> raising the temperature higher, making the steam "dry" as opposed to 212
> degree steam which was "saturated."   Now the steam in the boiler was
higher
> in temp than 212 because it was under pressure, but I don't know the
> temperature it was operated at.
>
> By contrast "feedwater heaters" do what I said, the heat the water to be
fed
> into the boiler.
>
> Superheaters do not equal feedwater heaters.
>
> Sorry.
>
> SGL
> ----- Original Message -----
> From: <Hhaines_@_aol.com>
> To: <sgl2_@_ix.netcom.com>
> Sent: Tuesday, May 01, 2001 10:53 PM
> Subject: Re: (erielack) Inaccuracies in models....
>
>
> > Dear Mr. Larrabee,
> >
> > Thanks for confirming what I wrote him, but I thought that the
> superheaters
> > were in the smokebox area to heat the steam to higher
> temperatures/pressures
> > to get more work out of the steam.  If I read your note correctly the
> > feedwater heater used spent steam off the cylinders?  I can read the
> diagrams
> > but they are fuzzy as to which way the flow was going.
> >
> > Either way, it was more energy efficient and economical.  And they
didn't
> > have those Elesco's until the late 1920s.
> >
> > H Haines
>

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