We have a backpressure steam turbine of 10MW made by ALSTOM. The manufacturer recommended the minimum steam flow through the turbine of 30t/h. We see some benefits in running less than that during summer. Our preferred summer flow would be 10t/h.

What would be the process reasons for setting the minimum flow? What to watch for if we go for testing 10t/h flow.

 

The turbine may overheat at the lower flow.
Is there a desup station with temperature on the steam outlet?
It may not operate or control well at a lower flow rate.

 

This is definitely a good suggestion-lower flow will certainly result in higher temps in the steam path--especially in the L-1,2,&3 stages.