Liquid at volumetric compressor inlet 1

[omar87se]

Hello, if there is a liquid phase (for example 10% liquid, 90% gas) at the inlet of a volumetric compressor, does the failure of the compressor results from the fact that the phase change (liquid evaporation) in the compressor causes local thermal constraints ?

Thanks

Omar.

 

[racookpe1978]

If there is liquid going into a compressor,
and
if the compressor breaks after liquid goes into a compressor designed to compress gas from low pressure to high pressure,
why do you think the problem is a transient thermal restraint?

The compressor probably broke because you let liquid go into the compressor.

 

[omar87se]

Thanks racookpe1978 for your reply actually the question was more about the design of a new compressor, and to know if the phase change from liquid to gas in the compressor may causes a lot of damages.

 

[zdas04]

A phase change from liquid to gas inside a compressor results in the fluid temperature going DOWN. The latent heat of vaporization absorbs some of the adiabatic heat of compression. If all of the liquid flashes, there is simply no downside. If most of the liquid does not flash then it will probably break something before the valves can get open.

David Simpson, PE
MuleShoe Engineering

In questions of science, the authority of a thousand is not worth the humble reasoning of a single individual. ùGalileo Galilei, Italian Physicist

 

[chicopee]

What type of substance are you compressing? With refrigerants, in the low pressure side, to be compressed will always be, slightly, in the superheated phase to make sure no liquid gets in the compressor. There is not much clearance in the top dead center, so if liquid gets in there, you will have damages.