University of Idaho Department of Chemical Engineering 
         DOUBLE PIPE HEAT EXCHANGER Prediction Program  Rel. 2/8/92
                     Ch. E. 434 Laboratory              D. C. Drown 

     Date: Jan 25, 2008        Time:  1:10:57

     Input File Name:  G-8-p.dat                       


      Start Iteration Loop 
    Flow =  0.800  GPM
    Inlet Temperature =  17.40 C

    Steam Temperature = 108.07     T Wall Guess  =  99.00
    T Out  Guess  =  71.00

    Steam Pressure =   6.00 PSIG  + Temperature =    226.528 Deg F 
    H Vaporization =     961.02 BTU/LB   Density= 0.048531 LB/FT3
     Barometric Pressure =     13.4676      PSIA

    Steam Pressure =   6.00 PSIG  + Temperature =    108.069 Deg C 
    H Vaporization =   2235422. J/Kg   Density = 0.7774 Kg/M3
    Fouling - Inside = .0000000   Outside = .0000000
    Temperature Convergence to  0.010 Degrees 

  N    T Wall  T Out  Re No.    H Inside  H Outside    U 
          C      C                Watts / Sq. Meter C
   Units =  F      F                BTU / Sq. Feet F

   1    83.4    30.5    11361.     8269.    12885.     3711.
       182.1    87.0               1456.     2269.      654.
    Dittus-Boelter T film Pr.33 =    1722. BTU/Ft2 F 
    Dittus-Boelter T bulk Pr.4  =    1456.
                 Nusselt Ent.   =    2179.
                 Sieder-Tate    =    1741.
                 Sleicher-Rouse =    1521.
                 Petukhov-Popov =    1570.   T      V
                 McAdams T bulk =    1425.  75.1  5.51
                 McAdams T film =    1884. 128.6

   2    86.0    42.7    14028.     9159.    13284.     4016.
       186.8   108.9               1613.     2340.      707.
    Dittus-Boelter T film Pr.33 =    1847. BTU/Ft2 F 
    Dittus-Boelter T bulk Pr.4  =    1613.
                 Nusselt Ent.   =    2336.
                 Sieder-Tate    =    1914.
                 Sleicher-Rouse =    1722.
                 Petukhov-Popov =    1734.   T      V
                 McAdams T bulk =    1621.  97.9  5.52
                 McAdams T film =    2002. 142.4

   3    88.8    53.8    17196.    10068.    13779.     4327.
       191.9   128.8               1773.     2427.      762.
    Dittus-Boelter T film Pr.33 =    1969. BTU/Ft2 F 
    Dittus-Boelter T bulk Pr.4  =    1773.
                 Nusselt Ent.   =    2491.
                 Sieder-Tate    =    2088.
                 Sleicher-Rouse =    1918.
                 Petukhov-Popov =    1892.   T      V
                 McAdams T bulk =    1800. 118.8  5.52
                 McAdams T film =    2114. 155.4

   4    91.7    63.6    20748.    10957.    14383.     4638.
       197.1   146.5               1930.     2533.      817.
    Dittus-Boelter T film Pr.33 =    2082. BTU/Ft2 F 
    Dittus-Boelter T bulk Pr.4  =    1930.
                 Nusselt Ent.   =    2634.
                 Sieder-Tate    =    2256.
                 Sleicher-Rouse =    2100.
                 Petukhov-Popov =    2038.   T      V
                 McAdams T bulk =    1962. 137.6  5.52
                 McAdams T film =    2218. 167.4

   5    94.6    72.1    24442.    11775.    15107.     4938.
       202.2   161.8               2074.     2661.      870.
    Dittus-Boelter T film Pr.33 =    2180. BTU/Ft2 F 
    Dittus-Boelter T bulk Pr.4  =    2074.
                 Nusselt Ent.   =    2758.
                 Sieder-Tate    =    2408.
                 Sleicher-Rouse =    2257.
                 Petukhov-Popov =    2165.   T      V
                 McAdams T bulk =    2105. 154.2  5.52
                 McAdams T film =    2311. 178.2

   6    97.2    79.4    27955.    12479.    15967.     5221.
       207.0   174.9               2198.     2812.      919.
    Dittus-Boelter T film Pr.33 =    2260. BTU/Ft2 F 
    Dittus-Boelter T bulk Pr.4  =    2198.
                 Nusselt Ent.   =    2859.
                 Sieder-Tate    =    2537.
                 Sleicher-Rouse =    2385.
                 Petukhov-Popov =    2266.   T      V
                 McAdams T bulk =    2228. 168.4  5.52
                 McAdams T film =    2394. 187.7



      Flow Rate =  0.800  GPM   Steam Pressure =   6.00  PSIG

      Temperature   IN =   17.4 Degrees C    63.3  F
      Temperature  OUT =   79.4 Degrees C   174.9  F
     Steam Temperature =  108.1 Degrees C   226.5  F

    Length   Wall Temp.        Temp. Water Out
     Inches     C      F          C       F

    11.667      83.4  182.1     30.5   87.0
    23.333      86.0  186.8     42.7  108.9
    35.000      88.8  191.9     53.8  128.8
    46.667      91.7  197.1     63.6  146.5
    58.333      94.6  202.2     72.1  161.8
    70.000      97.2  207.0     79.4  174.9
..PAGE