化工基础课后答案

第二章14.d e

d2d2 1d1

41225242.24mm25uW

2.5103/3600 0.43m/s1150 0.0422424Re

du

0.042240.431150

174064000 1.210317.选贮槽液面为1-1面，冷却装置内液面为2-2面p u2

p u2 1

Z

22 Z H2g 1

e 2g

2 f12分析：p p1

Pa,

u 0, Z Z1 2

16m ll u2H e2 12

f d 2gl80m, l 38.07meH

Z 1

lle

u 2

80.24me 2 1

d 2g2gR2gR 0q CAv 0 0q

0.0114m3/suv1.30m/A21．p u2H Z 41.4me 2gHqN e ve 1000N

1.354kW N

0.59三章1.①Q

Tt

7001300.1 0.1

2244.4A12A121 2

0.9A

0.7A②Q'

T't'

740900.1 0.1

706.0A13AA2 13A1 2 3

0.9A

0.7A

0.06AQQ'

2244.4

68.5%3.①r1

Q 2244.43.52/225mm, r2

65mm, r3

85mmA A r r1 6525103A 2 1 2 1 0.263m2A r 65ln 2 ln2 lnA r 251 1 AA rr 1 8565103A 3 2 3 2 0.468m2m2 Aln 3A2Tt

rlnr2

ln8565140301Q 1

0.04

44.8J/mA1

2A2 m

0.070.263

0.150.468②A

0.237m2Tt

A '0.418m2m214030Q'

0.04

56.9J/m' 1 2

0.150.237 0.070.418'A ' A1

2 m25.T定性

20 20 2du0.8

0.4①0.023

p

m2Kd

②

20.8

m2K1③

d

5352.2Wm2K110．①Q mr5008804.4105/h冷凝 1Q m冷却 1

p1

T3

5002.8

30QQ Q冷凝 冷

5.08105

kJ/hmC t 冷凝 2 p2 2T2t2Q T2t2冷却 2 p

t 152t 17.7C235

17.7

78.5tm冷凝

51.7C35ln78.535 303578.517.717.715 15t 32.7Cm冷却

ln78.517.73015Q K冷凝 Q K冷却

A1A1

Am冷凝 冷Am冷却 冷却

3.0m21.4m2AA A冷凝 冷

4.4m2②An 4.40.022

35根14.①Qm1

r4000/36009251027.8kJs1QmrmC 1 2 p2

tm1

12.31kgs1②逆流③tm

t t 1 ln t t

47.3C2吸收2.1)mPH

1.421033.86104

kmolkPa1m3EMs2)p y , x 7.0010p P m CpH3.90103kmolm36.mE1.34

11 1

3.66104kmolm2sky k ky 2)1/ky

2604.2koml1m2s,

m/kx

koml1m2s气膜控制N kxk3) A x i

yi

y mxi ix 0.0513, yi 7.

0.06871 1 1 KGk Hk 5.8810 kmolm kPa h4 2 G LH 11 KLk kG Lk

0.36mh1K KY

PKG

6.3102kmolm2h1KX 9.

K m20.03kmolm2y

h1LX1L

X V2 Y

YVYY2 1 Y

LV

X 2V X

1 max

X

Y/mX1 21LV 3

maxY 0.01681YYY 1 20.0077m Yln 1Y2YN Y

Y22.1811.

OGHH

YmNOG

1.744mH V 0.692mOG

KaYXV

Y

V

Y0.01221 2 1 YY

1 L 1 2Y 1 m Yln 1Y2

0.0031YYN 1 OG Ym

6.32HH NOG 精馏4.(1)

4.37myx y1yyxx1 0

0.95x1(2)

0.952.461.46

0.885V5078LRD1.28kmol/h5.

1.92kmol/hy0.723x yx

x 0.95DR2.61y1.25x0.0187

0.0748 yx Wy0.723x0.263xy1.25x0.0187 6.

0.534定 性 温 度9455T 74.50C, C2

1 .5kJkmol1k1,

r.6kJkmol1 Cq1Cq

Tb rx

1.212y x f 5.762.94q1 q17.(1)q xy x f 6x1.5q1.2, xq1 q1 R x

0.3y x D 0.8x0.2n1R

R1yD e

R12.64, R

3.96min

xe e

min2xy11xy x

2x

x 0.33 11xe y6x.5 ye.5(2) FDW F21kmolh1Fx Dx

D261kmolh1 f

D W (3)y1.44x0.0188.(1) y 0.75x 0.239,n1 n1 1

N1019(2) q , N12121 39.(1) FDW

0.97DxFx Dx Wx FxDxf(2)2

D W fq 23q x y xq1

f11.5x

x 0.33 e2x

0.5y1

1x

eRmin

Dyxey xxe

2.8e eLqF W