I am studying this on my own and am so lost - pleasehelp..... A steam turbine re

Question

I am studying this on my own and am so lost - pleasehelp..... A steam turbine receives steam with a flow of 15 kg/s andexperiences a heat loss of 14 kw. Using the properties below,find the power:                                                 IN                                    OUT Pressure                                 6205kPa                          9.859kPa Temperature                             811.1K                           318.8K Velocity                                  3048m/s                           274.3m/s Specific InternalEnergy           3150.4kJ/kg                     2211.8kJ/kg SpecificVolume                      .05789m3/kg                     13.30m3/kg I am studying this on my own and am so lost - pleasehelp..... A steam turbine receives steam with a flow of 15 kg/s andexperiences a heat loss of 14 kw. Using the properties below,find the power:                                                 IN                                    OUT Pressure                                 6205kPa                          9.859kPa Temperature                             811.1K                           318.8K Velocity                                  3048m/s                           274.3m/s Specific InternalEnergy           3150.4kJ/kg                     2211.8kJ/kg SpecificVolume                      .05789m3/kg                     13.30m3/kg

Explanation / Answer

the thrust on the steam turbine is F = (dm/dt) * v the power of the engine P = F * v or P = (dm/dt) * v * v = (dm/dt) * v^2 (dm/dt) = 15 kg/s and v = (v1 - v2) = (3048 - 274.3) m/s =2773.7 m/s

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