Refrigerants, Wide range EGO and other thoughts.

[Thor Johnson]

> Refrigerants
>
> Sounds like someone is trying to adapt the ammonia  absorption
cycle
> refrigeration system to use as an intercooler.  What is
interesting is that
> although this cycle is less "efficient" at cooling  than a
compressed gas
> cycle, it gets it's pumping energy from heat - in the  case of
a propane RV
> refrigerator from a small propane flame, or in this  case from
the waste heat
> of the exhaust.  The problem is probably the exhaust
temperatures raise the
> ammonia/water solution past the efficient working  range and
the gentleman is
> looking for another absorption cycle fluid that will work in
this range.

You have any good sources of info on the ammonia cycle?  I'm a
nuts&bolts guy who would like to build one for the heck of it....
(An EE that likes to play with the ME's toys ;).

TIA,
-Thor Johnson
thormj at iname.com