Stall Point Analysis

Load at which condensate drainage halts in modulating-control HEX

Inputs auto-save on this device

Design Point

Design steam pressure (bar g)

Pressure at HEX inlet with TCV fully open

Design heat load (kW) — optional

Leave blank if unknown; stall % is still computed

Process inlet temperature (°C)

Process outlet temperature (°C)

Setpoint — controller maintains this

Return backpressure (bar g)

Open atmosphere = 0; pressurised return = line pressure

Lift height (m)

Vertical lift from trap outlet to return; each metre adds ~0.098 bar

Return-line friction Δp (bar)

For long return lines; can come from the Pressure Drop calculator

Beta — preliminary engineering tool based on classical LMTD heat balance. Confirm with Ayvaz engineering team for definitive decisions.