Desuperheating — Injection Water

The water to inject to bring superheated steam down to a target temperature, and the resulting flow.

Unit system

Inputs

Superheated steam flow

Line pressure (absolute)

Inlet temperature

Target outlet temperature

Leaving a few degrees of superheat is field practice — going to full saturation risks wetting the line.Injection water temperature

Injection water flow

1,550kg/h

Outlet steam flow

11,550kg/h

State at outlet	Superheated, margin retained
Water-to-steam ratio	0.1550
Saturation temperature at this pressure	179.9 °C
Remaining superheat at outlet	5.114 K

Pure energy balance: mixing is taken as adiabatic and complete; line heat loss and incomplete mixing are not included.
The injected water evaporates and ADDS to the outlet flow — the process side sees more than the inlet flow.

A PDF carrying the inputs, results, assumptions and the source. A one-time code is sent to your address.

Results are for engineering pre-assessment and are not a product selection commitment. Final responsibility rests with the user.