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Unformatted text preview: ME 200: Thermodynamics I Lecture 10: Property Tables Prof. Sojka Summer 2011 2 In this Lecture … • Property Tables 3 Thermodynamic Properties Can be retrieved from: – tables – graphs – equations – computer software Tables provide an easy way of listing relevant properties for many pure, simple compressible substances. • Property information is available for – compressed liquid – saturated liquid – liquidvapor mixture – saturated vapor – superheated vapor 3 4 Evaluating Properties • How many intensive properties the state postulate tells us we must specify to dictate the state of a compressed liquid (i.e., to calculate the rest of the properties)? – Two! 4 ME 2005 Evaluating Properties Compressed liquid • What are the specific volume and internal energy values for water at P = 25 bar and T = 100 ºC? – υ = 1.0423 x 103 m 3 /kg – u = 418.24 KJ/kg 5 ME 200 September 15 th , 2010 Table A5 Properties of Compressed Liquid Water (p. 825) 6 Evaluating Properties Compressed Liquid • What is the specific volume for water at P = 5.0 MPa and T = 200 ºC? – υ = 1.1530 x 103 m 3 /kg 6 ME 200 Table A5 Properties of Compressed Liquid Water (p. 825) ME 2007 Evaluating Properties Compressed Liquid • What is the temperature in ºF for water at 500 psi and u = 268.92 Btu/lb? • T = 300 ºF 7 ME 200 Table A5E Properties of Compressed Liquid Water (p. 875) ME 2008 Evaluating Properties • How many intensive properties the state postulate tells us we must specify to dictate the state of a superheated vapor (i.e., to calculate the rest of the properties)? – Two! 8 ME 200 ME 2009...
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This note was uploaded on 09/26/2011 for the course ME 200 taught by Professor Gal during the Summer '08 term at Purdue UniversityWest Lafayette.
 Summer '08
 GAL

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