TO CALCULATE GAS COMPRESSOR FLOW
TO CALCULATE GAS COMPRESSOR FLOW
(OP)
We had Centrifugal Lean gas ( Natural Gas) compressors which are driven by Gas Turbines. Lean Gas molecular weight is nearly around 16.5 , suction pressure is 10.7 kg/cm2 (g) & discharge pr. 24.5 kg/cm2(g). Suction Temp. is around 23 Deg.C. , inlet flow is 170 TPH with Antisurge full close and speed is 95% of full rpm.
Some one get an idea to reduce suction temp. to 15 Deg.C. from 23 Deg.C. My query is that will flow through compressor increases at same 95% rpm, remaining all the condition same.
Some one get an idea to reduce suction temp. to 15 Deg.C. from 23 Deg.C. My query is that will flow through compressor increases at same 95% rpm, remaining all the condition same.





RE: TO CALCULATE GAS COMPRESSOR FLOW
your "query" (last sentence) is true as volumetric/mass flow increases with lower inlet temps and other inlet gas conditions remaining the same.
hope this helps!
good luck!
-pmover
RE: TO CALCULATE GAS COMPRESSOR FLOW
RE: TO CALCULATE GAS COMPRESSOR FLOW
But Is there any simple formula to calculate flow in both the conditions, as we know that by reducing suction Temperature Gas volumetric & density will change but Mass flow will remain same ?
RE: TO CALCULATE GAS COMPRESSOR FLOW
Next, the compressure emparts head to the gas in terms of feet and its a constant head at a constant speed. so you know the head because you know the pressure in and out and the desity. density1/density2 = deta P1/delta P2