H-S Diagrams

HS Diagram

An HS diagram for an arbitrary process that proceeds from state 1 to state 2.
Consider an irreversible, adiabatic, steady-flow process such as the turbine shown below.
Ws = ___ kJ/s
Process flow diagram for a irreversible, adiabatic turbine operating at steady-state.
Q = 0
1st Law:
The Q term is eliminated because it has a value of zero.
0
The first Law of Thermodynamics applied to a turbine operating at steady-state.
The first Law of Thermodynamics applied to a turbine operating at steady-state.
The first Law of Thermodynamics applied to a turbine operating at steady-state.
Proportional to the net work for an adiabatic, steady-flow devices such as turbines, pumps and compressors.
Larger values of The first Law of Thermodynamics applied to a turbine operating at steady-state. are associated with greater irreversibility within the system.
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Ch7, Lesson B, Page 18 - H-S Diagrams