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Do we need accumulators on compress 1

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BRIS

Civil/Environmental
Mar 12, 2003
525
Do we need accumulators on compressors serving surge vessels.

I assume without accumulators we will have a lot of banging around in the air line and it will be difficult to control the air injection ?
 
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There is not a cookbook answer to that question. Accumulators are only useful if your system can tolerate a pressure range rather than a specific pressure. In that scenario, the compressor fills the accumulator to the top of the range and then shuts off--allowing the compressor to always be in its optimum efficiency condition regardless of load variations. If your system requires a specific pressure or a very narrow range then a cycling compressor spends too much of its time in start-up and shut down modes or has to run continuously (in recycle much of the time), and an accumulator is of little value.

Compressors for industrial gases tend to not have specific accumulator vessels, and rely on pipeline storage to provide the load leveling characteristic.

In any scenario the engineer must balance equipment life-cycle costs (including fuel/power) against explicit capital costs, being careful to include credible maintenance and repair frequencies for each scenario.

[bold]David Simpson, PE[/bold]
MuleShoe Engineering

In questions of science, the authority of a thousand is not worth the humble reasoning of a single individual. Galileo Galilei, Italian Physicist
 
Define your term "surge vessel" and "accumulator".
Specifically, what is your duty cycle of air required, compressor "on" pressure and "off" pressure, and air allowable pressure range at the service header.
Also, how big an accumulator vs how big a storage tank are you considering.

A large pressure tank with a large connection pipe to the supply header may suffice by itself.

I am assuming your required product is medium pressure air, not hydraulic fluid.
 
I agree with Racookpe - the question is very unclear so need a bit more than one line of text.

Compressor serving a surge vessel??
Air injection?

In general the other answers are good, but without some specifics and lot more explanation we won't make any progress here.

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
 
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