1. Parul Institute of Engineering & Technology Subject Code : 2131905 AUTOMOBILE 3 RD SEM Name Of Subject : Engineering Thermodynamics Topic : Steady Flow Energy Equation(SFEE) Name of Faculty : RAVINDRA GUPTA Name of Students : 130870102001 – AKASH RAJESH MISHRA 130870102004 – SHAH ANUJ 130870102009 – DOBARIYA HIREN 130870102013- GUJJAR GUNJAN 1308701020 37- PARMAR NITESH KUMAR

2. Steady Flow Energy Equation(SFEE) Sub: Engineering Thermodynamics Topic: SFEE Derivation Of Energy Equation For Open Systems

3.  U +  E K +  E P = Q – W(1) substitute for W as where Sub: Engineering Thermodynamics Topic: SFEE

4. Derivation Of Energy Equation For Open Systems Substituting for W and W f into (1) Rearranging,  U + (PV out - PV in ) +  E k +  E p = Q - W s (2) Sub: Engineering Thermodynamics Topic: SFEE

5. Derivation Of Energy Equation For Open Systems The definition of enthalpy is, Substituting this into (2) gives Sub: Engineering Thermodynamics Topic: SFEE

6. Derivation Of Energy Equation For Open Systems This is the energy equation for an open system frequently termed the steady flow energy equation Sub: Engineering Thermodynamics Topic: SFEE

7. Derivation Of Energy Equation For Open Systems This is the energy equation for an open system frequently termed the steady flow energy equation Sub: Engineering Thermodynamics Topic: SFEE

8. Steady Flow Energy Equation The generalised steady flow energy equation may frequently be simplified if certain terms are negligible Sub: Engineering Thermodynamics Topic: SFEE

9. Steady Flow Energy Equation There are no moving parts, as in the case of a boiler or a condenser, and no shaft work can be done. W s term is eliminated, leaving Sub: Engineering Thermodynamics Topic: SFEE

10. Steady Flow Energy Equation The system and its surroundings are at the same temperature, or if the system is perfectly insulated. i.e. no heat transfer occurs, hence Q = 0 leaving Sub: Engineering Thermodynamics Topic: SFEE

11. Steady Flow Energy Equation The linear velocities and mass flows of all streams are the same, and no change in kinetic energy occurs, i.e.  E k = 0, leaving, Sub: Engineering Thermodynamics Topic: SFEE

12. Steady Flow Energy Equation All systems enter and leave at a single height, hence no change in potential energy occurs, i.e.  E p = 0. Sub: Engineering Thermodynamics Topic: SFEE

13. Thank You Sub: Engineering Thermodynamics Topic: SFEE