Промышленность \ Введение в специальность

Оптимизация рекуперативного теплообмена технологических потоков центральной газофракционирующей установки методом пинч-анализа, страница 171

Th.Cond                                                          0.683/0.663                 0.0777/0.0777                                                                        0.0263/0.0263

Bub. p.                                                                                                 69.0

Dew p.                                                                                                 69.0

Mol.W.                                                                                                 58.13/58.13

Cr.pr.                                                                                                   37.97/37.97

Cr.temp.                                                                                              152.0/152.0

Lat.heat                                                                                               312.4/312.4

Note: The boiling side is partly working in mist boiling region!

Note : Low temp. diff. on boiling side. Set "Nucleate boiling mult" to 0.!

Project:        Cas200

Item:             T3

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Alfa Laval Compabloc Heat Exchanger                                           Technical Specification

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1*CPK40  Vertical  Countercurrent     AISI 316 L  1.00 mm  162pl 26.2/26.6 m?

pdes=16.0 barg    Tdes=55.0/40.0-75.0/55.0 °C  k=1591/1384 W/(m?*K) 

Marg.=15(5)%  Foul.=0.0(0.94)*10-4 m?*K/W  Load=564.2 kW  LMTD=15.5 K

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Water                      41.5 m?/h  1.27<100 kPa   71.0 °C --> 59.0 °C              1*40+1*40 M

ШФЛУ                     131 m?/h  6.17<100 kPa   55.0 °C <-- 44.0 °C               1*40+1*41 M

Dp(p+co)=0.316 kPav(co)=0.652 m/s  NTU=0.77  Connections A1 à A2  1/1  150/150 mm

Dp(p+co)=1.75 kPav(co)=2.11 m/s  NTU=0.71  Connections B1 à B2  1/1  150/150 mm

Media                           Temp.         Dens.       Sp.heat.         Cond.          Visc.

Water                             59.0          982.7              4.17            0.652          0.472

64.9          979.7              4.18            0.657          0.433

71.0          976.6              4.18            0.663          0.397

ШФЛУ                            44.0          534.6              2.59            0.084          0.131

49.4          527.1              2.64            0.082          0.124

55.0          519.2              2.70            0.079          0.118

TemperaturesSide 1    Side 2

Bulk                      71.0       58.0                              m(ch)            1010      1720       

Wall                      66.8       54.0                             

Wall                      65.3       52.7                              v(ch)             0.156     0.500

Bulk                      55.9       44.0                              tau(wall)        2.70       12.5

Bulk or wall temp. out of range side 2

Project:      Cas200

Item:          Т4

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Alfa Laval Compabloc Heat Exchanger                  Technical Specification

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1*CPL30  Horizontal  Crossflow      AISI 316 L  0.80 mm  132pl  14.6/14.8 m2

pdes=5.0 barg   Tdes=60.0/20.0-65.0/45.0 °C  k=3125/2978 W/(m?*K)

Osurf=5 %  Foul.=0.0(0.16)*10-4 m?*K/W  Load=1237 kW  MTD=28.5 K

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Hot Side   Конденсация паров К4              Cold Side   ШФЛУ

Condensing                                                     Liquid Heating

1*65 M   Dp=25.3<58.6 kPa                           2*16+2*17 M   Dp=77.1<100 kPa

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