View Full Version : E-book Marine refrigeration

03-03-2005, 08:15 AM
An old e-book about refrigeration
Below each page is the link to the next chapter

03-03-2005, 07:15 PM
Thanks Peter_1.
Just had a quick look. Your right, it is a bit dated- R12 system. Should make interesting reading though. :)

04-09-2009, 07:07 AM
Can anyone tell me why Marine AC and Refer plants are always belt driven ?

04-09-2009, 07:17 AM
Can anyone tell me why Marine AC and Refer plants are always belt driven ?

Not always, but mostly.
Reason is that it could be driven by main motor!

04-09-2009, 07:24 AM
Main voltage onboard is not always the same as on land. The 240 VAC or 220VAc is limited for small appliances.

22-10-2009, 01:31 AM
Most marine generators produce 3 phase power thus making it more efficient to run a 3 phase motor belt driven system. We use the same systems on our scallop boats here in the northeast!

03-11-2009, 08:22 AM
belt drive is only used on reciprocating compressors because the max rpm is lower as a normal electric motor can do, however the newer screw compressors are always direct, and some even have a gear inside to make more revs.
Yes we also have some direct driven by main engine on a trawler, with a coupling in it.
so not true about belt drive same as on land.
Even big 12 cilinders are belt driven.

05-11-2009, 06:35 AM
Good link for the marine application ;