Maurice Tutor

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    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 10 Dec 2017 My Price 8.00

equimolar mixture

11.126   An equimolar mixture of O2 and N2 enters a compressor operating at steady state at 10 bar, 220 K with a mass flow rate of 1 kg/s. The mixture exits at 60 bar, 400 K with no significant change in kinetic or potential energy. Stray heat transfer from the compressor can be ignored. Determine for the compressor

 

(a)   the power required, in kW.

 

(b)  the rate of entropy production, in kW/K.

 

Assume the mixture is modeled as an ideal solution. For the pure components:

 

10 bar, 220 K                                60 bar,  400 K

 

              

 

h (kJ/kg)        s (kJ/kg ? K)          h (kJ/kg)        s (kJ/kg ? K)

 

Text Box: operation and neglect kinetic and potential energy effects. Oxygen 195.6 5.521 358.2 5.601 11.119 Methane enters a turbine operating at steady state at Nitrogen 224.1 5.826 409.8 5.911  

 

100 bar,275 K and expands isothermally without irreversibilities to 15 bar. There are no significant changes in kinetic or potential energy. Using data from the generalized fugacity and enthalpy departure charts, determine the power developed and heat transfer, each in kW, for a mass flow rate of 0.5 kg/s.

 

 

 

Answers

Maurice Tutor
(5)
Status NEW Posted 10 Dec 2017 09:12 PM My Price 8.00

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