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Exam3_Solns_2007 - Ch E 354 Professor Michael E Poehl Fall...

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Unformatted text preview: Ch E 354 Professor Michael E Poehl Fall 2007 — Exam # 3 December 4, 2007 — Tuesday 7 - 9 pm. - CPE 2.218 Name (print ) "Hf/Mu g. Tam—u. Problem Number Set-up / Equation Use Computation 1 30 L7 18' 2 20 [o l o 3 40 10 w 4 10 >7 r Totals 100 sow-59n— 5o_-_-§Q-- 100 NOTE - The following are allowed during the test Text Book Class Handouts, Lecture Notes Calculator (not programmed ) NOT ALLOWED Electra/Mk: Devices Grading of Test — To receive exam points — you must show all your work and be neat and legible. Write down each equation used, substitute in values, and compute answers. Any problem answered without illustrated set—up will not be graded, ANV PAGE WITHOUT A NAME ON THE TOP WILL NOT BE GRADED...... This is your opportunity to demonstrate complete mastery of the course content. Good luck. I am responsible for individual effort on this exam - and have abided by stated rules £39 signature --------------------------------- -- date ————————————————————————— ~\ Chemical Engineering Ch E 354 —Exam No. 3 - Fall 2007 Name 0 Map OERL/ Q1 - 30 PoinTs - We boughT a 30 pound BuTTerball br'and Turkey for Thanksgiving( H was so huge and breasTy, H- was abouT The shape of a baskeTball ), and H was GT 20 degrees F when I puT in The refrigeraTor. Four days IaTer' I'T had Thawed To 40 degrees F, which was The seTTing for The ‘ refrigeraTor. Before I puT H in The refrigeraTor I dropped iT in a sink of waTer To see if would sink or floaT, and jusT abouT 77 ‘70 of iT was submerged WhaT is The Thermal conducTiviTy of The Turkey ? ( BE CLEAR ON ANV ASSUMPTIONS VOU MAKE - B :OCE in ASSUMPTIONS ) 30 lb. Turkv7 l0: .77{¢2J/)¢ Vé/én/ 4+3 3M5. x IA. 3 z 3 r re 5:? $444 _____ _ Q 3 I r, - @LJ'X 5 r: . $30: $4. =x> D: 49974. { C010an SuMMF 79mg. 9,? n #4559“ (/3: Ag, 0 an m 70ancld-AJQCAV‘Za/e. °(- K K .I W 93 I 5.7” x 65°; 5 ~72, ‘: fill—(IO : / __ 755’? 7/40 :1— - '0098 7‘ 0( (“MFA [>747\ Chemical Engineering Ch E 354 —Exam No. 3 - Fall 2007 Name MAC—Pcflt, £0139 L/ Q2- 20 Poin'rs — A double pipe hea’r exchanger wiTh co-cur‘r‘en'r flow arrangement is exchanging hea‘r be'rween gasoline and benzene, Cold inlet s’rr‘eam is benzene( Cp 2 0.5 B’ru / lb F) of 80 F, and a flow ra’re of 20,000 lb,/ hr, Ho’r stream is gasoline( Cp = Q4 B’ru / lb 1‘ ) of 101000 lb. / hr‘. and needs To be cooled from 180 F to 120 F. What is The benzene ouTle’r Temperature, and The LMTD .7 . .. 139 a 9T. 20 Izo ? ’3’! J/ HT NV» Iw | by , 3" L-qup WW g-zm Clo AT. : {a’aw(.¢/)(/fi’a——/Zo> ; -z‘Io/Oor) [by/4‘ a fflar>7m -an,ow : Jam“ (72,7- 54°F! “In” zfiwr... 8a”/—> J “M: lavol‘ L.~ : ATI (lisp-'30) ~Q9’Q-[0‘D M; '9’ W x“ A»: we) 1 7G~Yo Chemical Engineering Ch E 354 -Exam No. 3 — Fall 2007 Name M‘H—‘rfifL POQHI/ Q4 - 10 PoinTs — Bonus Question - a.Describe a piece of equipmenT an The Tour aT Pickle Research CenTer - whaT was iTs purpose ? RAMP? BxcmmcoLL-Keflaced New @106 emf/W454, be SkeTch The process for removing heaT from The SeparaTions Research CenTer( Dr. Eldridge’s area of research ) To The main area across The sTreeT aT Pickle Research CenTer. M {i M79 W )4qu ...
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