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kmrknp
Active Contributor

Join Date: Jul 2010
Posts: 11

Loading & Unloading of a Compressor

01/16/2011 10:25 PM

What is meant by loading & unloading terms in a screw compressor ? How we can save the energy in screw compressor ( by setting loading & unloading times )? Please tell me with calculations & etc.
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Anonymous Poster
#1

Re: Loading & Unloading of a Compressor

01/16/2011 11:25 PM

Are you a mechanic robo to which you work after someone dump program in your OS? So you approach in the forum so that someone will take care.
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kmrknp
Active Contributor

Join Date: Jul 2010
Posts: 11
#2
In reply to #1

Re: Loading & Unloading of a Compressor

01/17/2011 2:32 AM

If you don't know the answer please keep quite...
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Anonymous Poster
#3
In reply to #2

Re: Loading & Unloading of a Compressor

01/17/2011 5:20 AM

We all are quiet now.
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Happy singh
Power-User
India - Member - New Member

Join Date: Jul 2010
Location: India
Posts: 162
#4

Re: Loading & Unloading of a Compressor

01/17/2011 7:29 AM

Hope this link would help you

http://www.ingersoll-rand.gr/downloads/rotary_nirvana.pdf

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fixitorelse
Guru

Join Date: Aug 2010
Posts: 687
Good Answers: 21
#5

Re: Loading & Unloading of a Compressor

01/17/2011 7:38 AM

Most screw compressors never really unload in the term like a recip can do. They may throttle back to say 50% and float between this and 100%. Some of the newer Screw Compressors are designed to be two stage and can be scaled back to some degree and save money on KW to run. But that is a hole new unit. Best way to save money with compressed air is to fix all of the air leaks in the facility. Compressed air is the most costly and least understood utility we use.
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electricalexpert65
Guru

Join Date: Oct 2009
Posts: 2061
Good Answers: 169
#6

Re: Loading & Unloading of a Compressor

01/18/2011 12:34 PM

Install a VFD for your compressor motor and thro a PID logic set the required pressure as input feedback to the VFD. Then you may remove your Load/Unload solenoids. The motor speed & power will be optimised by the VFD with respect to the required presuure.
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Anonymous Poster (2); electricalexpert65 (1); fixitorelse (1); Happy singh (1); kmrknp (1)

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