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Pump pulsations

Pump pulsations

Pump pulsations

(OP)
Hi all,

My company is currently designing a reciprocating heat pump, and wants me to attempt a preliminary pulsation study to discover the cause of a pressure loss at the compresssion stage.

My hunch is that ultimately we will have to commission a full pulsation study to get a handle on this phenomenon but in the meantime I would like to model it to understand it as best as possible.

I am a physicist by training and so am I reasonably comfortable with models generally but am uncertain how to carry out this sort of analysis. I want to ask if someone could provide me some references or recommend a textbook which could get me up to speed on developing a simple model. A sample study would also be a great help.

Many thanks.
 

RE: Pump pulsations

RE: Pump pulsations

The Reciprocating Pump by Miller is the bible on how these devices work. Publisher Keiger.

AFT's Impulse can model the behaviour of a pulsating pump. AFT could also do the modelling for you if you have a tight time frame. www.aft.com.

RE: Pump pulsations

If you are dealing with the compressor in a heat pump your fluid is a highly compressible gas, so pressure pulsations are not normally a significant issue. A small chamber at the discharge of the compressor is all that is required to fully damp these pulsations.   

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