Eaa S Pag can E Ccn Eq. (. q q k W/ K k W/ K A A 6 n as bu 6 s q lns s q T k T k Q.. Wall s aus n gvn Wall s aus a an C. 7 n, lf kc cs ( s sn kc cs ( s sn s f cs k sn cs k sn quan C ( s C ( s an ln 6 sn k cs sn k cs n ( 8 n 9 Q..8, Ans. n 96 Q..9 Ans. ( s s ks k 7.9/P c (T s - T 7.9/[P c (T s - T ] = W/ K k = W/ K k Slun f f E. q q., ln ln ln k k n -6.. s ccal f ssanc... s ccal f ssv. 6 n : n las bu 6: n las bu : n. cln... clncal... cln... s.. qg qg C C R k., las q k bu n q(... ln / R 6.6 Ans. qg R las ln T T. C. as ln, g s f qn. 6 Slun ln a. s... scal.. g g q(... / R / R / R k W n cs n W = = ½ W W n T a q qg R k k T s. W n cs n W = /, = ½ C. W W n
Pag can E Ccn 6 E.. M. an N =. N. an M =. slun 66 Tabl., D cas 7, R C R C clun C R C C R C 67 Tabl., cas, z = z = W > clun z >> W z >> W W > 67 Tabl., cas 6, clun 7 n 9 E..9 Slun Eq. ( 96 E.. Slun n 8 n 6 8 Valu f C 8 as bu ln - >> W, H, z S Z ln ln R. T, n T, n k ka S.977 Z ln ln R.. T, n T, n k. T T T T s... ka ka T T T T s k A ka C C cv cv cv.6-6.6-6 ( 9 n.6678.7.68 6. 6 8 n H H 9 as bu 6 lns n ka F n ( T a cs n Fg. 6. an Fgs. 6. an 6. Tabl 6., cas 6, Fgu 7 E. 6.7 n 7 E. 6.7 Slun -as: -as: B k B k (... ka A cv.6678. 6. 6 H H ka ( T k -as: B k -as: B - T s.. cln aa.. a n n F.. cln aa.. S-nfn Slab ( =. S-nfn Slab ( =..6 n cs
Pag can E Ccn 9 n / = ( / =.6,.86. / = ( / =.,.9. 6 aa ln... a qual aus, sa C. If...... a qual aus, sa C. au f n (, n b C. If.. 7 aa las. jnng ns T ant... jnng ns T ant. ln 77 Q. 6. ln a f a ansf a. a f clng a. 77 Q. 6. Ans. T T T T A cv T T T T A cv 78 Q. 6.6 Ans. 6... = 8. s.7 J/. 6... = 6 s 9.8 J/. 78 Q. 6.7 ln If slab f Pbl 6. s sunl.. If slab f Pbl 6.6 s sunl 78 Q. 6.7 Ans. a f ( /( =. s a f ( /( =. s 78 Q. 6.8 Mssng aa (k = 6 W/K, ρ = 78 kg/, c = 6 J/kgK 78 Q. 6.8 Ans. =.6 J/ an Q/A =.8 =.6 6 J/ an Q/A =.8 6 J/. J/. 79 Q. 6. Dn nval Δτ. Assu.. Dn nval Δτ f lc fulan. Assu 9 Fg. 7.9 f - as aa ssng - as aa u (T - T Eq. 7. Eq. (7. f f. f f. Eq. ( 6 n -, ls n 9 Eq. 7.7 E. 7.9 Slun u g g u g g T T T... T... T T / / av.66k P av.66k P / / Nu / / av.66 P R Nu av.66 P R ρ =.9 kg/, ρ =.9 kg/, μ =. - μ =. - 8 Eq. (7.98b 88 as ln, g s f quan. /. c c v v v v v v v v
Pag can E Ccn 98 Equan.8. Nu.66Rc P Nu.66R 8 Fg. 7. as: / as: /δ as ln quan, lf s as bu n ln a b C a b C / a b C.. c P a b C / /.9....9... 7 E. 7.7... n s an vlc,... n s au vlc, 7 E. 7.7, q q Slun T T T T b 8 nna R f las qu. R. f T b R. R n 7 F P =., F P =.,. Ns fl gn n /7 fl gn /7 6 T: T : = a c T : = a c 8 n an 7 R.... 6 R.... 6 / ( /... 7. >.6. b /... 7. >.6. 78 Tabl 8.9 F n - Dl fn 8 Eq. (8.8a n n Pb K Tb K P T T b s bulk au f gas an T s all au n Klvn. 8 Eq. (8.9 * R....96 *.7 * * f f R....96.7 9 Eq. (8.9c.... Nu...(P/ P ( / Nu...(P/ P ( / an (8.9 99 as bu lns g.. 9.8 g 9.8 6 ln.r P 7.7 k >.6 ;.R P 7.7 k >. ; 6 Eq. (9.b a b c f g C k c T g 6 n 67 quan 6 n E. 9., Ans. gt G q Nu.6 Buanc fc Vscus fc... 78 Ra. /... 6.8. a b c C k c gt G q T g... 78 Nu.6 Ra f g Buanc fc Vscus fc. /... 6.8. Nu...... Nu...... 69 as bu... (. 69..69.... (. 69..69. ln 66 n F Tabl 8., f + =., F Fg. 8., f + =.,
Pag can E Ccn 66 Q. 9. an n f μ: /s n f μ: kg/s 9. 67 as aa, ns c : J/ s; : J/s; k: J/lcul K c : (J/s ; : Js; k: J/K 67 Eq. (.7 c T ct E b E b c c 67 n, nna 7 Eq. ( 76 N ( c / T ( c / T A F A F A A F A F A F v F F F F F v F F F F. 79 Slun D: =, =, =. D: =, =, =. 768 n = 687 W/ un lng = 886. W/ un lng 79 n 6 T c 79 n 7 T c T T 799 Fg..69b /(δ/ka + /(δ/ka + / A 799 Eq. f q b Ccn n nna Rlac / b / A, / b /( 8 as bu n /.7 /. ln.68... (.686.68... (.686.. 87 Ans. n A =DH + (/R A =DH + (/D 88 Q..8 Mssng aa P sufac ssv =.8 8 Q.. Ans. C n cns C =., ε =..7 =.7 8 Q.. las lns (8/.6 =., q gs = σ A s (ε c T g α c T s = 9.8 (8/.6 =., q gs = σ A s (ε c T g α c T s = 7.7 8 Eq. (.8 sn sn ncln vcal 86 Q.. ν f =.8-6 J/kg, ν f =.8-6 /s, 897 Fg..b Valus f C /C un C /C un =.,.7 nsa f.,.7 9 E.. n n OD. ID. 9 n A.7 A.7.7..6. 97 as a f al an = Mass ffusn A s B A = =.86 g/s. ncln vcal B A RT RT 9.78 (...9 6 9. kg/s. 96 Fg. 6. ABS (Q g - Q g ABS (Q g - Q g Accuac 98 Tabl A.. Clun Dns ρ (g/ Dns ρ (kg/ -.768 6
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