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Pressure dewpoint out of air dryer

Pressure dewpoint out of air dryer

Pressure dewpoint out of air dryer

(OP)
Your assistance is appreciated

the usual specification for dryness of instrument air at dryer exit is a pressure dew point of - 40 F. Take the pressure at this location to be 100 psig.

Question is what variables would need to be adjusted:

first, to give this value - 40 F at 100 psig

second, which to give - 40 F at 115 psig

third, to give - 30 F at 100 psig

If you feel this thread is not within your purview can you please indicate which group might be more involved with this?

Thank you

RE: Pressure dewpoint out of air dryer

Look at a psychometric chart, it has water content vs. temperature and pressure for air. The bottom line is that a -40F (or C) dewpoint at 100 psig would have a larger mass of water vapor than the same stream at 115 psig.

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

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