# Transient - Internal Combustion Engine During Exhaust or...

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1 ME 201 Thermodynamics First Law for Transient Systems Guide In a simple transient system, we will have only one inflow or outflow, so the energy equation can be written { } W - W - Q + e m - OR e m = u) (m dt d bnd sh out out in in where Q now represents the net heat transfer rate into the control volume system (so it is positive for energy added by heat transfer and negative for energy removed by heat transfer) and W sh represents the net shaft power out of the control volume system (so it is positive for energy removed by shaft work and negative for energy added by shaft work). Some real world examples include Blowing up a Balloon Leaking Tank Rocket Engine
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Unformatted text preview: Internal Combustion Engine During Exhaust or Intake In dealing with a transient system energy problem, the conservation of mass equation will always be needed. { } m-OR m = dt dm out in & & Quite often during a transient process with a single outflow the conditions inside the system will change between the initial state and the final state. In these cases the energy outflow must also be changing. The energy outflow should be evaluated at the average temperature and pressure of the system for a single phase system and at the average quality for a two phase system....
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## This note was uploaded on 07/25/2008 for the course ME 201 taught by Professor Somerton during the Spring '06 term at Michigan State University.

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