ME530_L31_11_08_10

ME530_L31_11_08_10 - ME 530 Fall 2010 Project 2 Due...

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Unformatted text preview: ME 530 Fall 2010 Project 2 Due: December 6. 2010 This project " . - rename the adiabatic Harrie tern mature and irreversibility for burning propane g with various amounts of theoretical air. Some of the CO: in the products may dissoc r I = cording to the equilibrium reaction: * m. c: m + +0. The products can include C02. H20. (‘0. 0;. and N2. The extent of the equilibrium reaction. C. varies Front 0 For all ('0: to l for no (‘0; The composition of the air is assumed to be 3.?0 moles of N; for every mole of 02. with no other substances. The air and fuel enter the combustion chamber as separate streams. each at 25 “C. The environment temperature is also 25 "C. The presSure is 1 atm everywhere. I J For [00% theoretical air, calculate the adiabatic flame temperature {K} and the irreversibility tlrthrnolCil-lil for the case with no dissociation {Q = 0]. Assume that all reactants and products behave as ideal gases with constant speci tc eats. Evaluate specific heats for each substance at_l_.§_®_:§I and then Whit all calculations for this project. Specific heat data can be found on twitchsite given in project I. You may need to do a general search For the formula and then find the gas phase tliet-mo-chernisuy data. 2] For the equilibrium reaction. use equation £1.40} to calcul a function oftemperature. Use data for 1000I K and 2000 K to find the constants for equa 1 I40]. You will then use this equation to interpolate or extrapolate KptTl for the rest ofthis project, 3] For various values of theoretical air. calculate the adiabatic flame temperature {K}. the extent of the equilibrium reaction {C}. and the irreversibility tht’kmolCiHi}. Assume that all reactants and products behave as ideal gases with constant specific heats. Perform these calculatimls for the following values oftheoretical air: [00%. ISD%, 200%. 250%. 300%. 350%. and 400%. Make a table with your results. 4] Turn in a report describing how your calculations were done (including equations and methods}. the answers for the above cases. a discussion of your results and experiences with this project. and a hard copy of any programs you wrote. Hint: Pan 3 of this project requires the solution of two simultaneous. non-linear equations. You can use any method you prefer to solve these equations. Almost all non-linear equation solvers use iteration (even ifyou do it by hand). so a good stoning guess For the solution is important. A good guess for the temperature would be the no dissociation temperature calculated in part I. Then. iterate from that solution. 1When changing percent theoretical air. the solution item the previous case may be a good starting guess. Fund Ckewu an] Exeqy (“04' "wk. ) ‘P‘i/Wo MA! VIN-WWI GJ Plow we =u‘th-mm, H75 “77% aka-M cJ e x¢r yy _,,,. ) “Pahal eyes-5')! [negled' r15 +53% =3 F°r 2y... 0"; «NC «Love '. ’5 Squl'amcek *5 wx hr” 44%, Syrl‘em "' #54 ewv: 1'94 «ac/J1 Cinema-Haul Po'Lch‘a, 9J- ng/ u ‘1; fl— W ‘P /“'h/‘l> : é ’% 156/43,} Fa ( Hydro 4M {av- twlj F 5 a Jaw-F = (LA/‘01 (72/ r7’/‘°':’) +£A1”"(flfll‘;4") -' (03’ 01, (7;! Rho») (1- —" rich I/f‘o/lcz ml PoIn") =/d°/(‘1/7;/ Pa) -Q lo ) T.— \_’_—————\J [U P sap-we. ‘0', “7,01”) Old 02' ...
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This note was uploaded on 02/28/2012 for the course ME 530 taught by Professor Ronnelson during the Fall '10 term at Iowa State.

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ME530_L31_11_08_10 - ME 530 Fall 2010 Project 2 Due...

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