economizer line/subcooler line

[GENERALCOOL]

Hi guys,

I was checking piping diagram of "economizer" for screw compressors and "sub-cooling" line of 2 stages compressors.
Both of them were same and both of them is for subcooling liquid line and also increasing mass flow of compressor …… .

But why on screw compressors we call it economizer line and on 2 stages compressors for blast freezer we call it sub-cooler line or I have mistake ?

Thanks.

[Josip]

Hi,

here you can read a lot about economisers/sub-coolers ...
http://www.refrigeration-engineer.com/forums/search.php?searchid=699656
about 7 pages with posts regarding economiser/ sub-coolers etc ....

if above link is not working in search window write ... economiser ....

... actually economiser line is a special port on compressor which is in function only when compressor capacity is above 75-80% ... below that capacity eco port is on the same pressure which we have on suction on that system ...

economiser main purpose is to increase system capacity up to 20%,
but increase of input power is only 8-10% ...

15527
Above is STAL - STALOMIZER with some explanation ...

here is some good link ... I hope ;-))
https://www.swep.net/refrigerant-handbook/10.-systems/asdf4/


after reading if you need some additional help, please, do not hesitate to ask ...


Best regards, Josip

[GENERALCOOL]

Hi,

here you can read a lot about economisers/sub-coolers ...
http://www.refrigeration-engineer.com/forums/search.php?searchid=699656
about 7 pages with posts regarding economiser/ sub-coolers etc ....

if above link is not working in search window write ... economiser ....

... actually economiser line is a special port on compressor which is in function only when compressor capacity is above 75-80% ... below that capacity eco port is on the same pressure which we have on suction on that system ...

economiser main purpose is to increase system capacity up to 20%,
but increase of input power is only 8-10% ...

15527
Above is STAL - STALOMIZER with some explanation ...

here is some good link ... I hope ;-))
https://www.swep.net/refrigerant-handbook/10.-systems/asdf4/


after reading if you need some additional help, please, do not hesitate to ask ...


Best regards, Josip

Thanks a lot for your help.