Refrigeration.AI

[RANGER1]

Ask me something, anything.

Refrigeration.AI

[Tycho]

On an RSW plant with a screw compressor, flooded evaporator, LRI oil cooling.

To protect the Compressor from wet suction, would you put an alarm on Discharge gas super heat or suction gas superheat?

[Tycho]

In a standard vapor-compression refrigeration cycle, if you replace the refrigerant with orange juice, how would that affect the phase change in the evaporator, and what would be the optimal superheat for citrus-based cooling?

[RANGER1]

On an RSW plant with a screw compressor, flooded evaporator, LRI oil cooling.

To protect the Compressor from wet suction, would you put an alarm on Discharge gas super heat or suction gas superheat?

In a standard vapor-compression refrigeration cycle, if you replace the refrigerant with orange juice, how would that affect the phase change in the evaporator, and what would be the optimal superheat for citrus-based cooling?

Tycho, ask Refrigeration.ai website

[RANGER1]

In a standard vapor-compression refrigeration cycle, if you replace the refrigerant with orange juice, how would that affect the phase change in the evaporator, and what would be the optimal superheat for citrus-based cooling?

Typed it in, says don’t bother getting a brain scan, because it won’t find anything!

[Tycho]

@Ranger1, thought you were going to be the AI :P

[Tycho]

refrigeration AI refused to answer, but Chatgpt got it

Discharge gas superheat responds more quickly to changes in the system, especially when it comes to issues like wet suction. It reflects the conditions at the compressor discharge immediately, giving a faster indication that liquid refrigerant might have entered the compressor. This allows you to react more quickly to protect the compressor.

LRI Valve Fault Detection: A faulty liquid refrigerant injection (LRI) valve could lead to excess liquid refrigerant entering the oil cooling circuit, and discharge superheat can detect this issue sooner. If the LRI is malfunctioning, the discharge superheat will drop as liquid refrigerant enters the compressor, which can prevent catastrophic failure.

Comprehensive Monitoring: While suction gas superheat can help monitor the evaporator, discharge superheat gives a more comprehensive view of what’s happening after compression. If there’s a sudden drop in discharge superheat, it’s a strong indication of liquid refrigerant reaching the compressor, regardless of whether it’s coming from the suction or oil cooling circuit.

using discharge superheat for your alarm setup would provide quicker, more reliable protection, while also covering potential faults like a malfunctioning LRI valve.