Solution_SP4

Solution_SP4 - Water T-s 150 200 250 300 350 400 2 4 6 8 10...

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Unformatted text preview: Water T-s Diagram 50 100 150 200 250 300 350 400 2 4 6 8 10 s (kJ/kgK) T (C) T 3/8/2008 ME 145 - Solution to Supplemental Problem 4 (SI units with kJ) a) STEAM GEN 1 TURBINE 2 CONDENSER 3 PUMP 4 T 1 =300 ° C x 1 =1.0 h 1 =2748.7 s 1 =5.7042 p 1 =8.58MPa T 2 =40 ° C s 2 =s 1 h 2 =1774.6 p 2 =0.007MPa T 3 =40 ° C x 3 =0.0 h 3 =h f =167.5 s 3 =s f =0.5723 v 3 =v f =0.001003 p 3 =p 2 p 4 =p 1 h 4 =h 3 +v 3 (p 4-p 3 ) =167.5+0.001003(8580-7)=176.1 T 4 =T 3 +(176.1-167.5)/4.2=42 ° C ( 29 ( 29 ( 29 ( 29 ( 29 ( 29 % . Q W MW . W W W MW . . . h h m W MW . . . h h m W MW . . . h h m Q in net p T net p T in 5 37 68 120 08 1 5 167 1 176 125 76 121 6 1774 7 2748 125 57 321 1 176 7 2748 125 3 4 2 1 4 1 = = =- = =- =- = =- =- = =- =- = η 1 1 3 2 4 b) ( 29 ( 29 ( 29 ( 29 7 176 93 5 167 93 1 1 176 a) part (from 1 3 1823 6 1774 7 2748 95 7 2748 a) part (from 4 4 3 4 3 3 4 4 3 4 3 4 2 2 2 2 1 1 2 2 1 2 1 ....
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This homework help was uploaded on 04/09/2008 for the course ME 145 taught by Professor Manno during the Spring '08 term at Tufts.

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Solution_SP4 - Water T-s 150 200 250 300 350 400 2 4 6 8 10...

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