Nav wrote:

I think it's also pretty
sloppy to call the inlet prssure to a turbine a vacuum. Don't you guys
traditionally use mmHg for near vacuum pressures?

We sometimes us inHg and sometimes we use psia, depends on the
shipbuilder and machinery supplier. It is reasonable to assume a metric
ship displays mmHg ... makes no matter as far as operation is concerned.

It is hardly "sloppy" to call inlet pressure the condenser a vacuum. It
is engine exhasut and as long as it is less than atmospheric it is a
vacuum.

Condenser pressure is engine exhaust pressure for engineering purposes.
We determine condensate depression and other operational factors by
calculating condenser vacuum based on exhaust temperature.

Rick