Back Pressure Steam Turbines

What information do you want? You can not get any more power out of the machine than the energy you put in - this we know for sure. So without doing any calculations whatsoever, if you calculate that you need 50 tons/hour and you are only giving it 40 tons per hour then the answer is no.

Are your governor valves wide open?

I know it.

I have just done my rough calculation.

May be we can get more efficiency turbine that can save steam consumption.

If some one have any similar experience kindly share...

for above data maximum u can generat 4 mw only as you got stam consumption is 9.9kg/kw.for accarte calculation some more data require like as back press temp also

approx. 160-175 Superheated steam at ourlet of turbine

hi, nilesh if u have steam table then pll calculate enthalpy of inlet/outlet & get back effeciency

→ Steam Tables.

You got all calculations right and your turbine efficiency assumption of 78% is not far off the mark. So to get 5 MW from the machine which is set up to do only 4 MW, you got to change something.

If you can't increase your steam flowrate to 50 tph, can you reduce your outlet pressure to 2.55 bara (i.e 1.55 barg), then you can get 5 MW out of this. I quickly checked to see the outlet quality and you still have a small superheat so no condensation on the outlet either.

I don;t see many other options here, unless you want to reblade your turbine to improve efficiency.

I checked for Extraction / Condensing type turbine and It can solve problem of LP Steam requirements (Via extraction) and Power generation.

I am checking now, changes required in system ....

Thanks a lot for your valuable inputs...