chapter 4_Slides

# chapter 4_Slides - Transient Analysis(MS 4.12 Mass Balance...

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Transient Analysis (MS 4.12) = e e i i CV m m dt dm . . = t e e t i i t CV dt m dt m dt dt dm 0 . 0 . 0 ) ( ) ( ) ( = e t e i t i CV CV dt m dt m m t m 0 . 0 . ) ( ) ( ) 0 ( ) ( = t i i dt m m 0 . = t e e dt m m 0 . = e e i i CV CV m m m t m ) 0 ( ) ( + = e t e e i t i i CV CV CV CV dt h m dt h m W Q U t U 0 . 0 . ) ( ) ( ) 0 ( ) ( + = e t e e i t i i CV CV t CV dt h m dt h m W Q dt dt dU 0 . 0 . 0 ) ( ) ( ) ( *Ignoring the effects of kinetic and potential energy + = e e e i i i CV CV CV CV h m h m W Q U t U ) 0 ( ) ( *Assuming the state of inlet and exit flow does not change with time and using the same expression for mass flows as in the mass balance Mass Balance Energy Balance + = e e e i i i CV CV CV h m h m W Q dt dU . . . .

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Example 4.12 . i CV m dt dm = Define the System and the boundaries: Single inlet and no exits
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## This note was uploaded on 10/06/2009 for the course ENGRD 2210 at Cornell.

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chapter 4_Slides - Transient Analysis(MS 4.12 Mass Balance...

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