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Thread: No Pressure drop in condenser
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25-10-2016, 07:15 AM #1
No Pressure drop in condenser
Hi,
I have an air-cooled condenser with the following sensors:
1- Pressure sensor at the discharge line of the compressor, which is considered the input pressure of the condenser.
2- Pressure sensor on the top of a liquid line receiver, which is considered the output pressure.
The condenser is working in a vapor compression system with R134a.
I would expect some pressure drop. However both sensors give almost the same pressure value. My questions are:
- Is it normal to have almost zero pressure drop or is this indicative of non-condensables or another problem? Have experienced people seen this before?
- Having the pressure sensor on the top of the liquid line receiver (where there is a mixture between liquid and vapour) might give a different pressure value?
Regards