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Binder1 - Assignment 1 D1 Complete the following table for...

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Unformatted text preview: Assignment 1 D1 Complete the following table for H20: T(° C) P(kPa) v(m3/kg) Phase Description 50 4 16 200 Saturated Vapor 250 400 1 10 600 D2 Complete the following table for H20: T(°C) P(kPa) h(kJ/kg) x Phase Description 325 0.4 160 1682 950 0.0 80 500 800 3161.7 D3 A pistou-cylinder device contains 0.1 m3 of liquid water and 0.9 m3 of water vapor in equilibrium at 800 kPa. Heat is transferred at constant pressure until the temperature reaches 350°C. (a) What is the initial temperature of the water? (1)) Determine the total mass of the water. (6) Calculate the final volume. ((1) Show the process on a P-v diagram with respect to saturation lines. D4 Superheated water vapor at 180 psia and 500°F is allowed to cool at constant volume until the temperature drops to 250°F. At the final state, determine (a) the pressure, (b) the quality, and (c) the enthalpy. Also, show the process on a T—v diagram with respect to saturation lines. AnsWers: (a) 29.82 psia, (b) 0.219, (c) 425.7 Btu/lbm D5 Determine the specific volume of superheated water vapor at 10 MPa and 400C, using (a) the ideal—gas equation, (b) the generalized compressibility chart, and (c) the steam tables. Also determine the error involved in the first two cases. Answers: (a) 0.03106 m3/kg, 17.6 %; (1)) 0.02609 m3/kg, 1.2 %; (c) 0.02641 m3/kg D6 Determine the enthalpy change Ah of nitrogen, in KJ/kg, as it is heated from 600 to 1000 K, using (a) the empirical specific heat equation as a function of temperature (Table A— 20), (b) the Cp value at the average temperature (Table A-Zb), and (c) the Cp value at room temperature (Table A— 2a). 7‘ mg?- College of Engineering UNIVERSITY 9 ARKANSAS (3’3) aOO/OIL Lit/4 ”'03 XWU X : Ar-xu; ”‘55 lasg+ ;: <1 3 £6755 k/ZA 73.7 NE? J 41/6“ .éfl/fl/z /2.03 - , cam/‘2. ww—“W /.2 34/7 /</"J Sfl’lf Mrflar‘ 6M0 54+, flex. 724%” ”1:,”7/79 0053857; ~ Egg-ii College of Engineering UNIVERSITY ‘ ’ ngRKANSASmm W... ‘ wmmmmmmm [email protected]_.MQ__LMM CC.) 7’: 950 0C ') ,0: 400k/9a ) Arr? we saw. 7W. Mk. (we A—vét T( c) Smfpr ‘Hfld‘ 0343 {on GW>fiwwflwLZQQ \ 7 @ lefo C 3L )0: ay/qu 7 i/‘r” 0.5?5/m7fig/l , imeflJ—J @) 72w?_/fl:amkaj/w? GWfiSW-E% &% T _ ii: College of Engineering ”2% UNIVERSITY 9f ARKANSAS (r4) _____._.___.________m_m__m_u_ he 1.: .......... f:3.,25/</Zj XMV/ mwflmfi T J “‘ 91/“ 7744” 7‘2)” WA“ A 5 1/755 7144 :(a7)(3/53?£) + 573,2; : 41/354: H7 AM: 2’ 34+, 75/600Cj A:/§FZ /4V,é‘5}/g:? / f/Mfé:? Gm; 547‘ fflmy, fl/é/w 49c @7 /6 /Zc <1 4 < 45 4/1 45am- 67.51;; ' 20§>Z.é —‘~....<.... NWWWWTMU 6: 51/709” ,,»~77,tg I I " ° / / fl XiaO/"f’lp/fi _>t7f / Z/ _..._——- M.” :W/ lllfififilflmu College of Engineering UNIVERSITY QIARKANSAS _ ,_.___________,Wmi_p_gém _fl2.________ ._. (D) 72900“? 4:1)0 J51? j If, \ H E u foa/MLHIVH Wk __,,.,...—»- «W»: 44.01 It" / J / x5: éfié 54% 67”; +4449 ““7 @ £90214, A > A5 ’7 MMMw/fi'c/j Gd'fc SAVJfA'gMTL “flag/Z; :5: College of Engineering UNIV=7E S . —————KA WMAWWWWWWW #5:: mww » ’m ‘59: m 4‘” NI / w , ‘ "— 45 ~’- 0/023 aka? 7‘" :333270C 9% ""’ c/‘flvi’ [”5900/4/3 ‘ ”7707*4/ 5A“ (0) ”#17 fll/fla WW“? , . ‘.m...wm_.__b____,__--_.._._m_ lém _¢ 119; __ FEL. a/m" d A42 ago/#33775 W”, a J“ 7% ‘Vj ;’ A if 6’ 7” :: M3 away/773 "7"” @723;ch )1 Prfflé/cif’m ~==> 54% [457% A)": 5,3J‘4/7i7/s’ Z? 19‘: 6,35%,”73?‘ 7757'Zifi?’ ' : 33-.//'/2/?" fag» I ”,9 ‘ I l gig"; College of Engineering ‘ UNIVERSITY ngRKANSAS W_#...___._______.________ '_ £5 mg" “.12. j ‘ _ w Jnl’J/M [”0665 , KM/ (“Iggy S A): “p, (én¢ Va/ ‘“ $ng 1.5;“ \ [35.790 F 72,-???“ F /: new; : 3.49/2»— ao/m/ j 532/? M6 /?.?2.6-- 0.0/7fiél 3%}; College of Engineering UNIVERSITY Exf- ARKANSAS 2—- (70.11119, PM ' ‘ fl: é.V(/5‘ /<7 /< M: /<5-/( 7-1.. r—fir’ 577” 0, yg/rm 7g 6 7 3/1“ sf W PM: / 7: é % 0. 03? 2 52A 5 [War —' % College of Engineering UNIVE=R811 Y #ARKANSAS as: fajn 53‘ ,5 7‘, V4 ,‘q afflr‘ LIV/.6? q [5' E; L 'L/ -- j W 1 «gngflgm k/V'm) 7;sz x A”, 4V x0” <3 /( I Xijofia/M 4:: /-7§7 k/V’m‘ [7,. ..../_2_.ZC_/1 5 léfiyé/f/M’ma‘: g/Zj’jex 77'1“" 4‘ £4.» f £5 k’ W 24,922 [290/ A: 0 a0/6?0 M3 k9 §%% College of Engineering {JNIVERSITY afARKANSAs (/4) fl‘fllkl/(d/ @éfi/éh (6)9 @9 ,4U’rgg 7 7 6) c 62 am, 7% g?) [:25 Go ”($.47 / (A) AAsfc/yfl I 4341;1(a +£714C7174a/7’3) 0/7 —'= “7143* $405 7:1") $714737; 7‘5 0M7; 26“. 7(//6‘0‘0 - (pa) + 3i (0. we} 2.: *5) [0004)”: (500): l + 7/46-2. 9'73 5— 7)[(/Wd)y“g5af/J A4 : //) {Co — 502.71 + z)///.¢? _. 425/4 -— Coll e of En ineex'in _ g 93 g g '——& UNIVERSITY Qf ARKANSAS 44:,— (jmwms in £04 km} 0U). 0/3 g} (A : waxy-1g}, ...
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