FUN CRYOGENICS
Largest Reciprocating
Helium Expander in the world?
|
Model 4000 expander
|
The expander on
HEUB-MAGCOOL has two cylinders, each cylinder has a 9.1 cm (3.6
inch) diameter bore
and a 7.6 cm (3 inch) stroke.
The refrigerator was constructed in 1975.
As of Oct 2002, one expander has 32,000 hours of operation. The second
expander has about 40,000 hours.
|
If you have seen
a larger reciprocating helium expander, please contact
kcwu@bnl.gov
Largest Wet Expander in the world?
|
Model 1600 wet expander |
The wet expander used
in B902 has two cylinders, each cylinder has a
7.6 cm (3 inch) bore
and
a 5.1 cm (2 inch) stroke. The
wet expander was constructed in 1985 and has 22,000 hours of operation as
of Oct 2002.
Running the wet
expander at 60 rpm is quite an experience. Time between maintenance can be
easily extended over 5000 hours. |
If you have seen
a larger wet expander, please contact kcwu@bnl.gov.
Last update on:
February 22, 2008 by
