[modeleng] Re: The power of steam

Probably a little known fact, refrigeration was first invented in Australia
in 1859 by James Harrison it was first developed to keep beer cold.
Lee

----- Original Message ----- 
From: "Harry Wade" <hww@xxxxxxxx
>
> >How do they use hot steam to cool apartments?
>
> I don't know exactly except that cooling is only a matter of compressing
> and expanding a recirculating gas . . . . and steam cam power the
> compressors.  I remember as a child making regular stops at the "ice
house"
> where we bought blocks of ice for household use.  The ice was made by
> filling concrete chilling pits with water and the cooling system was
> ammonia vapor compressed by huge electrically powered reciprocating
> compressors.  It was at the same time a fascinating and frightening place
> for a child, espcially after once of the icemen asked my dad if he wanted
> the Lad put into a 50lb or 100lb block?  :-)
>
>
> Regards,
> Harry Wade
> Nashville  Tennessee
>
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