Lecture26_Tds relations entropy change for incompressible substances-handout

Lecture26_Tds relations entropy change for incompressible substances-handout

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Unformatted text preview: 1 Professor: Euiwon Bae Lecture Hours : MWF 1:30-2:20 in ME1130 Office Hours : MWF 2:30-3:30 in ME1091 Email : ebae@purdue.edu Phone : 765-494-6849 Course website : http://engineering.purdue.edu/ME200 ME200 : Thermodynamics I Lecture 26 : T-ds relations & Entropy change for incompressible substances 2 Outline T-ds relations Entropy change of incompressible substances Examples 3 T-ds equations - How do we get entropy from other properties? - Still require two independent intensive properties - From entropy definition from last lecture - Property - Process independent (reversible/irreversible) (even though derived for int. reversible process) 4 T-ds equations - T-ds relates the entropy change with other readily determined property data (P,U,H, and V) - Starting from differential form of energy balance (Lecture 07) ? = ? + ? E + ? PE - Assuming no KE or PE variation w/ simple compressible system - From simple compressible system - Therefore First T-ds equation is 5...
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Lecture26_Tds relations entropy change for incompressible substances-handout

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