Tek-Tips is the largest IT community on the Internet today!
Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!
-
Congratulations LittleInch on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!
Sizing Compressed Air Accumulator 4
- Thread starter Tigerdawg
- Start date
-
1
- #2
TigerDawg,
The three things that determine how often your compressor starts are: (1) air usage; (2) accumulator pressure above minimum-acceptable pressure; and (3) accumulator volume.
The place to start is with a good estimate of usage (both peak and average). When you know (in SCF) the expected demand (plus a safety factor), then you can look at your compressor choices to determine an effective pressure to challenge the equipment without overloading it - a good rule of thumb is that the compressor should run less than 1/2 of the workday (i.e., if it is in an 8-hour/day application, it should supply a full day's air in 4 hours, don't make the mistake of multiplying the capacity times 24 hours in a single-shift application or you will always be out of air or your accumulator will have to be huge).
Finally size your accumulator to store peak demand for some multiple of the expected peak duration.
David Simpson, PE
MuleShoe Engineering
The three things that determine how often your compressor starts are: (1) air usage; (2) accumulator pressure above minimum-acceptable pressure; and (3) accumulator volume.
The place to start is with a good estimate of usage (both peak and average). When you know (in SCF) the expected demand (plus a safety factor), then you can look at your compressor choices to determine an effective pressure to challenge the equipment without overloading it - a good rule of thumb is that the compressor should run less than 1/2 of the workday (i.e., if it is in an 8-hour/day application, it should supply a full day's air in 4 hours, don't make the mistake of multiplying the capacity times 24 hours in a single-shift application or you will always be out of air or your accumulator will have to be huge).
Finally size your accumulator to store peak demand for some multiple of the expected peak duration.
David Simpson, PE
MuleShoe Engineering
-
3
- #3
The below link gives the best approach for sizing an air receiver with a worked out example.
My suggestion would be to place a secondary receiver near the equipment which consumes more compressed air.
If you do a search with the key word "Air Receiver", you will find quite a good number of hits with great logic (particularly the one by TD2K)
Regards,
Eng-Tips.com : Solving your problems before you get them.
My suggestion would be to place a secondary receiver near the equipment which consumes more compressed air.
If you do a search with the key word "Air Receiver", you will find quite a good number of hits with great logic (particularly the one by TD2K)
Regards,
Eng-Tips.com : Solving your problems before you get them.
- Status
Similar threads
- Question
- Question