Screw compressor discharge temperture ...

[Josip]

Hi,

surfing on the web found this article .... sounds quite reasonable ... i.e. sometimes we have to change common accepted values and accept plant conditions ....

http://www.eng-tips.com/viewthread.cfm?qid=352181#

what do you think about?
is it acceptable to change some settings or must follow manufacturer recommendation/suggestion ...!?! .. all this is about screws ....


reciprocating compressors are different ... and higher discharge temps are common ..


I must admit it is not easy to make any decision .... comments!?!




Best regards, Josip

[RANGER1]

Hi,

surfing on the web found this article .... sounds quite reasonable ... i.e. sometimes we have to change common accepted values and accept plant conditions ....

http://www.eng-tips.com/viewthread.cfm?qid=352181#

what do you think about?
is it acceptable to change some settings or must follow manufacturer recommendation/suggestion ...!?! .. all this is about screws ....


reciprocating compressors are different ... and higher discharge temps are common ..


I must admit it is not easy to make any decision .... comments!?!




Best regards, Josip

Josip I think it is a case by case situation.
Manufacturers cannot design for every condition on the planet.
It helps to know why you are changing something out of the ordinary, instead of guessing or hoping for the best.

In our business we can work with a lot of different brands, who all have slightly different characteristics, some for a reason, some with no real reason except different opinions or experience.
We can sometimes draw on our experience & change things that some manufacturers general data do not recommend.

[RANGER1]

Coal seam gas & petro-chemical is a specialist field on its own referring to link.
From what I understand upstream filters, scrubbers & knock out pots are used to reduce
system & oil contamination.
Obviously have to carefully select oil type that suits manufacturer & conditions.

I would think Mycom USA & Canada would have a good understanding but I think when they
do it there are no middle men involved.

All these different types of synthetic oils also create possible new problems with shaft seal "0" ring materials also.

In normal refrigeration I would suspect someone made a design error or cut corners to get the job for things to get out of the norm.
People get creative if they don't want to fix it $$$.