Main

Objects

Main.Objects History

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February 14, 2019, at 03:25 PM by 10.37.111.106 -
Added line 12:
  • Array(type,size) array of GEKKO objects
Added lines 41-42:

In Python GEKKO, objects are defined as components of the model as m.object_name().

Deleted lines 44-45:

In Python GEKKO, objects are defined as components of the model such as m.abs3().

Added lines 58-81:

(:sourceend:)

Python GEKKO Example Usage (Array, abs3, sum)

(:source lang=python:) from gekko import GEKKO import numpy as np m = GEKKO() x1 = m.Param(-2) x2 = m.Param(-1) x3 = np.linspace(0,1,6) x4 = m.Array(m.Param,3) y4 = m.Array(m.Var,3) for i in range(3):

    x4[i].value=-0.2
    y4[i] = m.abs3(x4[i])
  1. create variable

y = m.Var()

  1. y = 0.6 = -2 -1 + 3 + 0.6

m.Equation(y == sum([x1,x2]) + sum(x3) + sum(y4)) m.solve() # solve print('x1: ' + str(x1.value)) print('x2: ' + str(x2.value)) print('y: ' + str(y.value))

February 14, 2019, at 03:10 PM by 10.37.111.106 -
Added line 36:
  • sum summation of elements in a list or numpy array
February 14, 2019, at 03:08 PM by 10.37.111.106 -
Changed line 8 from:
  • abs2(x) absolute value with MPCC (continuous first/second deriv)
to:
  • abs2(x) absolute value with MPCC
Added lines 25-28:
  • max2(x1,x2) maximum value with MPCC
  • max3(x1,x2) maximum value with binary variable for switch
  • min2(x1,x2) minimum value with MPCC
  • min3(x1,x2) minimum value with binary variable for switch
Changed line 30 from:
  • sign2(x) signum operator with MPCC (continuous first/second deriv)
to:
  • sign2(x) signum operator with MPCC
February 14, 2019, at 02:18 PM by 10.37.111.106 -
Added lines 26-27:
  • sign2(x) signum operator with MPCC (continuous first/second deriv)
  • sign3(x) signum operator with binary variable for switch
February 14, 2019, at 01:40 PM by 10.37.111.106 -
Changed line 5 from:

In Python GEKKO, some of the objects and functions are:

to:

Python GEKKO has equation functions and pre-built objects. Some of the pre-built objects and equation functions are:

February 14, 2019, at 01:13 PM by 10.37.111.106 -
Added line 58:

(:source lang=python:)

Added line 76:

(:sourceend:)

February 14, 2019, at 01:12 PM by 10.37.111.106 -
Changed lines 300-301 from:

(:table border=1 width=100% align=left bgcolor=#EEEEEE cellspacing=0:) (:cellnr:)

to:

(:source lang=python:)

Changed line 422 from:

(:tableend:)

to:

(:sourceend:)

February 14, 2019, at 01:11 PM by 10.37.111.106 -
Changed line 1 from:

Some pre-built objects are available in the APMonitor language to facilitate flowsheets of processing equipment while others are to simplify model building.

to:

Objects are available in Python GEKKO and the APMonitor language to simplify the description of complex models.

February 14, 2019, at 01:09 PM by 10.37.111.106 -
February 14, 2019, at 01:07 PM by 10.37.111.106 -
Changed lines 7-33 from:
  • abs(x) absolute value |x|
  • abs2(x) absolute value with MPCC (continuous first/second deriv)
  • abs3(x) absolute value with binary variable for switch
  • acos(x) inverse cosine, cos^-1(x)
  • acosh(x) inverse hyperbolic cosine, cosh^-1(x)
  • arx auto-regressive exogenous input (time series) model
  • asin(x) inverse sine, sin^-1(x)
  • asinh(x) inverse hyperbolic sine, sinh^-1(x)
  • atan(x) inverse tangent, tan^-1(x)
  • atanh(x) inverse hyperbolic tangent, tanh^-1(x)
  • bspline bspline for 2D data
  • cos(x) cosine
  • cspline cubic spline for 1D data
  • erf(x) error function
  • erfc(x) complementary error function
  • exp(x) e^x
  • log(x) log_e (x), natural log
  • log10(x) log_10 (x), log base 10
  • periodic periodic (initial=final) for dynamic problems
  • sin(x) sine
  • sinh(x) hyperbolic sine
  • sqrt(x) square root
  • state_space continuous/discrete and dense/sparse state space
  • tan(x) tangent
  • tanh(x) hyperbolic tangent

Python GEKKO Example (abs3)

to:
  • abs(x) absolute value |x|
  • abs2(x) absolute value with MPCC (continuous first/second deriv)
  • abs3(x) absolute value with binary variable for switch
  • acos(x) inverse cosine, cos^-1(x)
  • acosh(x) inverse hyperbolic cosine, cosh^-1(x)
  • arx auto-regressive exogenous input (time series) model
  • asin(x) inverse sine, sin^-1(x)
  • asinh(x) inverse hyperbolic sine, sinh^-1(x)
  • atan(x) inverse tangent, tan^-1(x)
  • atanh(x) inverse hyperbolic tangent, tanh^-1(x)
  • bspline bspline for 2D data
  • cos(x) cosine
  • cspline cubic spline for 1D data
  • erf(x) error function
  • erfc(x) complementary error function
  • exp(x) e^x
  • log(x) log_e (x), natural log
  • log10(x) log_10 (x), log base 10
  • periodic periodic (initial=final) for dynamic problems
  • sin(x) sine
  • sinh(x) hyperbolic sine
  • sqrt(x) square root
  • state_space continuous/discrete and dense/sparse state space
  • tan(x) tangent
  • tanh(x) hyperbolic tangent

Python GEKKO Example Usage (abs3)

February 14, 2019, at 01:05 PM by 10.37.111.106 -
Changed lines 3-4 from:

In Python GEKKO, objects are defined as components of the model.

to:

Python GEKKO Object Library

In Python GEKKO, some of the objects and functions are:

  • abs(x) absolute value |x|
  • abs2(x) absolute value with MPCC (continuous first/second deriv)
  • abs3(x) absolute value with binary variable for switch
  • acos(x) inverse cosine, cos^-1(x)
  • acosh(x) inverse hyperbolic cosine, cosh^-1(x)
  • arx auto-regressive exogenous input (time series) model
  • asin(x) inverse sine, sin^-1(x)
  • asinh(x) inverse hyperbolic sine, sinh^-1(x)
  • atan(x) inverse tangent, tan^-1(x)
  • atanh(x) inverse hyperbolic tangent, tanh^-1(x)
  • bspline bspline for 2D data
  • cos(x) cosine
  • cspline cubic spline for 1D data
  • erf(x) error function
  • erfc(x) complementary error function
  • exp(x) e^x
  • log(x) log_e (x), natural log
  • log10(x) log_10 (x), log base 10
  • periodic periodic (initial=final) for dynamic problems
  • sin(x) sine
  • sinh(x) hyperbolic sine
  • sqrt(x) square root
  • state_space continuous/discrete and dense/sparse state space
  • tan(x) tangent
  • tanh(x) hyperbolic tangent

Python GEKKO Example (abs3)

In Python GEKKO, objects are defined as components of the model such as m.abs3().

Added lines 52-53:

APMonitor Object Library

Deleted lines 75-106:

Python GEKKO Object Library

In Python GEKKO, some of the objects and functions are:

  • abs(x) absolute value |x|
  • abs2(x) absolute value with MPCC (continuous first/second deriv)
  • abs3(x) absolute value with binary variable for switch
  • acos(x) inverse cosine, cos^-1(x)
  • acosh(x) inverse hyperbolic cosine, cosh^-1(x)
  • arx auto-regressive exogenous input (time series) model
  • asin(x) inverse sine, sin^-1(x)
  • asinh(x) inverse hyperbolic sine, sinh^-1(x)
  • atan(x) inverse tangent, tan^-1(x)
  • atanh(x) inverse hyperbolic tangent, tanh^-1(x)
  • bspline bspline for 2D data
  • cos(x) cosine
  • cspline cubic spline for 1D data
  • erf(x) error function
  • erfc(x) complementary error function
  • exp(x) e^x
  • log(x) log_e (x), natural log
  • log10(x) log_10 (x), log base 10
  • periodic periodic (initial=final) for dynamic problems
  • sin(x) sine
  • sinh(x) hyperbolic sine
  • sqrt(x) square root
  • state_space continuous/discrete and dense/sparse state space
  • tan(x) tangent
  • tanh(x) hyperbolic tangent

APMonitor Object Library

Deleted line 117:
February 14, 2019, at 01:02 PM by 10.37.111.106 -
Changed lines 3-12 from:

In Python GEKKO, some of the objects are:

  • abs2 = absolute value with MPCC (continuous first/second deriv)
  • abs3 = absolute value with binary variable for switch
  • arx = auto-regressive exogenous input (time series) model
  • bspline = bspline for 2D data
  • cspline = cubic spline for 1D data
  • periodic = periodic (initial=final) for dynamic problems
  • state_space = continuous/discrete and dense/sparse state space
to:

In Python GEKKO, objects are defined as components of the model.

(:source lang=python:) from gekko import GEKKO

  1. define new GEKKO model

m = GEKKO()

  1. variable

x = m.Var(-0.5)

  1. calculate y=abs(x) with abs3

y = m.abs3(x)

  1. solve with APOPT (MINLP solver)

m.solve()

  1. print solution

print('x: ' + str(x.value)) print('y: ' + str(y.value)) (:sourceend:)

Changed lines 42-72 from:

Object Library

to:

Python GEKKO Object Library

In Python GEKKO, some of the objects and functions are:

  • abs(x) absolute value |x|
  • abs2(x) absolute value with MPCC (continuous first/second deriv)
  • abs3(x) absolute value with binary variable for switch
  • acos(x) inverse cosine, cos^-1(x)
  • acosh(x) inverse hyperbolic cosine, cosh^-1(x)
  • arx auto-regressive exogenous input (time series) model
  • asin(x) inverse sine, sin^-1(x)
  • asinh(x) inverse hyperbolic sine, sinh^-1(x)
  • atan(x) inverse tangent, tan^-1(x)
  • atanh(x) inverse hyperbolic tangent, tanh^-1(x)
  • bspline bspline for 2D data
  • cos(x) cosine
  • cspline cubic spline for 1D data
  • erf(x) error function
  • erfc(x) complementary error function
  • exp(x) e^x
  • log(x) log_e (x), natural log
  • log10(x) log_10 (x), log base 10
  • periodic periodic (initial=final) for dynamic problems
  • sin(x) sine
  • sinh(x) hyperbolic sine
  • sqrt(x) square root
  • state_space continuous/discrete and dense/sparse state space
  • tan(x) tangent
  • tanh(x) hyperbolic tangent

APMonitor Object Library

February 14, 2019, at 12:53 PM by 10.37.111.106 -
Changed lines 1-13 from:

Pre-build objects are available in the APMonitor language to facilitate flowsheets of chemical processing equipment. Objects are defined in the Objects ... End Objects section of the model file. New instances of an object are defined by declaring a new object name equal to the parent object type.

to:

Some pre-built objects are available in the APMonitor language to facilitate flowsheets of processing equipment while others are to simplify model building.

In Python GEKKO, some of the objects are:

  • abs2 = absolute value with MPCC (continuous first/second deriv)
  • abs3 = absolute value with binary variable for switch
  • arx = auto-regressive exogenous input (time series) model
  • bspline = bspline for 2D data
  • cspline = cubic spline for 1D data
  • periodic = periodic (initial=final) for dynamic problems
  • state_space = continuous/discrete and dense/sparse state space

In APMonitor, objects are defined in the Objects ... End Objects section of the model file. New instances of an object are defined by declaring a new object name equal to the parent object type.

Changed line 28 from:
  • ARX, Linear Time Invariant Model
to:
Added line 66:
  • VSum - Summation of a single variable in data dimension
Added line 28:
  • ARX, Linear Time Invariant Model
Added line 5:
 ! example use of ABS as MPEC
Changed line 7 from:
   c = abs
to:
   a = abs
Added lines 10-22:
 Connections
   x = a.x
   y = a.y
 End Connections

 Parameters
   x = -5
 End Parameters

 Variables
   y
 End Variables
Added lines 5-8:
 Objects
   c = abs
 End Objects
Changed lines 11-12 from:

The object library consists of chemical processing equipment such as feed streams, reactors, pumps, mixers, flash columns, vessels, and distillation stages. It also includes other elements that support distributed control system emulation such as a LAG and a PID controller.

to:

The object library consists of common mathematical functions and chemical processing equipment such as feed streams, reactors, pumps, mixers, flash columns, vessels, and distillation stages. It also includes other elements that support distributed control system emulation such as a LAG and a PID controller.

Added line 14:
June 16, 2015, at 06:50 PM by 45.56.3.184 -
Deleted lines 0-1:

Objects

Changed line 55 from:

(:table border=1 width=80%:)

to:

(:table border=1 width=100%:)

Changed line 155 from:

(:table border=1 width=80%:)

to:

(:table border=1 width=100%:)

Changed line 228 from:

(:table border=1 width=50% align=left bgcolor=#EEEEEE cellspacing=0:)

to:

(:table border=1 width=100% align=left bgcolor=#EEEEEE cellspacing=0:)

May 28, 2014, at 11:03 PM by 107.188.175.164 -
Changed line 23 from:
  • LTI - Linear time-invariant, discrete or continuous
to:
Changed line 34 from:
  • PWL - Piece-wise Linear
to:
May 28, 2014, at 11:01 PM by 107.188.175.164 -
Changed line 11 from:
  • Abs - Absolute value (MPEC)
to:
Changed lines 27-28 from:
  • Max - Maximum value (MPEC)
  • Min - Minimum value (MPEC)
to:
Changed line 30 from:
  • Periodic - Periodic boundary condition
to:
Changed line 37 from:
  • Sign - Number Sign (-1 or 1)
to:
Changed line 353 from:

(:tableend:)

to:

(:tableend:)

May 28, 2014, at 10:58 PM by 107.188.175.164 -
Added line 30:
  • Periodic - Periodic boundary condition
May 24, 2014, at 04:43 PM by 66.87.126.139 -
Added lines 218-223:

Example - Mixer Application

  • Solve Mixer Example Problem
August 06, 2012, at 11:56 PM by 69.169.131.76 -
Added line 41:
  • Sum - Summation of multiple parameters and/or variables
June 17, 2012, at 05:45 AM by 69.169.131.76 -
Added line 41:
  • Table - Data table that creates parameters or initializes variables
May 24, 2012, at 11:49 PM by 128.187.97.24 -
Added lines 200-208:

(:cellnr:) thermo_sh (:cell:) Solid Enthalpy (:cell:) J/kmol (:cellnr:) thermo_lh (:cell:) Liq Enthalpy (:cell:) J/kmol (:cellnr:) thermo_vh (:cell:) Vap Enthalpy (:cell:) J/kmol

May 06, 2011, at 08:25 AM by 158.35.225.231 -
Added line 13:
  • Feedback - Internal feedback
April 08, 2011, at 06:36 PM by 158.35.225.228 -
Deleted lines 205-206:
  • []
April 08, 2011, at 06:35 PM by 158.35.225.228 -
Changed lines 205-207 from:
  • [https://apmonitor.com/online/view_pass.php?f=min.apm | Solve MPEC form of the MIN function]
to:
  • Solve MPEC form of the MIN function
  • []
April 08, 2011, at 06:34 PM by 158.35.225.228 -
Added lines 200-205:

Example - MIN Function

  • [https://apmonitor.com/online/view_pass.php?f=min.apm | Solve MPEC form of the MIN function]
April 08, 2011, at 06:27 PM by 158.35.225.228 -
Added line 11:
  • Abs - Absolute value (MPEC)
Deleted lines 12-15:
  • Fabs - Absolute value
  • Fmax - Maximum value
  • Fmin - Minimum value
  • Fsign - Number Sign (-1 or 1)
Added lines 26-27:
  • Max - Maximum value (MPEC)
  • Min - Minimum value (MPEC)
Added line 35:
  • Sign - Number Sign (-1 or 1)
April 08, 2011, at 05:55 PM by 158.35.225.228 -
Added line 213:
  hydrogen
Deleted line 214:
  hydrogen
Changed lines 248-253 from:
  distill.feed.*                      = distill.feed_lag.inlet.*
  distill.feed_lag.outlet.*           = distill.feed_cooler.inlet.*
  distill.feed_cooler.outlet.*        = distill.feed_flash.inlet.*
  distill.feed_flash.outlet_vap.*     = distill.vap_mixer.inlet1.*
  distill.feed_flash.outlet_liq.*     = distill.liq_mixer.inlet1.*
to:
  feed.*                      = feed_lag.inlet.*
  feed_lag.outlet.*           = feed_cooler.inlet.*
  feed_cooler.outlet.*        = feed_flash.inlet.*
  feed_flash.outlet_vap.*     = vap_mixer.inlet[1].*
  feed_flash.outlet_liq.*     = liq_mixer.inlet[1].*
Changed lines 255-259 from:
  distill.liq_mixer.inlet[2].*          = distill.stage[1].l_out.*
  distill.liq_mixer.outlet.*          = distill.stage[2].l_in.*
  distill.stage[2:7].l_out.*          = distill.stage[3:8].l_in.*
  distill.stage[8].l_out.*            = distill.sump.inlet.*
to:
  liq_mixer.inlet[2].*        = stage[1].l_out.*
  liq_mixer.outlet.*          = stage[2].l_in.*
  stage[2:7].l_out.*          = stage[3:8].l_in.*
  stage[8].l_out.*            = sump.inlet.*
Changed lines 261-263 from:
  distill.sump.outlet.*               = distill.reboiler.inlet.*
  distill.reboiler.outlet.*           = distill.reboiler_flash.inlet.*
to:
  sump.outlet.*               = reboiler.inlet.*
  reboiler.outlet.*           = reboiler_flash.inlet.*
Changed lines 265-269 from:
  distill.reboiler_flash.outlet_vap.* = distill.stage[8].v_in.*
  distill.stage[3:8].v_out.*          = distill.stage[2:7].v_in.*
  distill.vap_mixer.inlet[2].*          = distill.stage[2].v_out.*
  distill.vap_mixer.outlet.*          = distill.stage[1].v_in.*
to:
  reboiler_flash.outlet_vap.* = stage[8].v_in.*
  stage[3:8].v_out.*          = stage[2:7].v_in.*
  vap_mixer.inlet[2].*        = stage[2].v_out.*
  vap_mixer.outlet.*          = stage[1].v_in.*
Changed lines 271-275 from:
  distill.stage[1].v_out.*            = distill.condenser.inlet.*
  distill.condenser.outlet.*          = distill.drum.inlet.*
  distill.drum.outlet_liq.*           = distill.reflux.inlet.*
  distill.reflux.outlet[2].*            = distill.stage[1].l_in.*
to:
  stage[1].v_out.*            = condenser.inlet.*
  condenser.outlet.*          = drum.inlet.*
  drum.outlet_liq.*           = reflux.inlet.*
  reflux.outlet[2].*          = stage[1].l_in.*
Changed lines 277-281 from:
  distill.sump.reserve.*              = distill.sump_mass.acc.*
  distill.feed.*                      = distill.feed_massflow.stream.*
  distill.drum.outlet_vap.*           = distill.cleu_massflow.stream.*
  distill.reboiler_flash.outlet_liq.* = distill.btms_massflow.stream.*
to:
  sump.reserve.*              = sump_mass.acc.*
  feed.*                      = feed_massflow.stream.*
  drum.outlet_vap.*           = cleu_massflow.stream.*
  reboiler_flash.outlet_liq.* = btms_massflow.stream.*
Changed lines 283-286 from:
  strm_p                            = distill.stage[1].v_out.p
  strm_p                            = distill.stage[2:8].l_out.p
  strm_p                            = distill.stage[3:8].v_out.p
to:
  strm_p                            = stage[1].v_out.p
  strm_p                            = stage[2:8].l_out.p
  strm_p                            = stage[3:8].v_out.p
Changed line 288 from:
  fd_p                              = distill.stage[1:8].l_res.p
to:
  fd_p                              = stage[1:8].l_res.p
Changed lines 311-318 from:
     fd_t     = distill.feed.t
     fd_p     = distill.feed.p
     fd_c2h4  = distill.feed.x[1]
     fd_c3h6  = distill.feed.x[2]
     fd_c3h8  = distill.feed.x[3]
     fd_h2    = distill.feed.x[4]
     fd_mdot  = distill.feed_massflow.mdot
     fd_ndot  = distill.feed.ndot
to:
     fd_t     = feed.t
     fd_p     = feed.p
     fd_c2h4  = feed.x[1]
     fd_c3h6  = feed.x[2]
     fd_c3h8  = feed.x[3]
     fd_h2    = feed.x[4]
     fd_mdot  = feed_massflow.mdot
     fd_ndot  = feed.ndot
August 14, 2010, at 06:36 PM by 206.180.155.75 -
Deleted lines 22-23:
  • Info_SVM - Measured State Variable
  • Info_CVM - Measured Controlled Variable
July 22, 2010, at 07:39 PM by 158.35.225.231 -
Changed lines 52-55 from:

(:table border=1 width=100%:)

to:

Temperature independent property data do not vary with temperature. They are defined as constants for each of the species declared in the Compounds ... End Compounds section of the model. If the Compounds ... End Compounds section is missing, all available compounds are included in the model.

(:table border=1 width=80%:)

Added lines 151-152:

Temperature Dependent Property Data

Changed lines 155-156 from:

Temperature Dependent Property Data

(:table border=1 width=100%:)

to:

(:table border=1 width=80%:)

July 22, 2010, at 07:35 PM by 158.35.225.231 -
Changed lines 49-51 from:

Temperature Dependent Property Data

to:

Thermo objects access data from the underlying thermodynamic database. There are over 1700 compounds accessible in the database. To reduce the size of the APMonitor executable, only some of the more common compounds are currently incorporated. Additional compounds can be easily added but require a rebuild of the executable.

Temperature Independent Property Data

Added lines 147-148:

The temperature dependent thermo objects produce values based on a specified temperature. When a temperature dependent property object is declared, a new temperature variable will be created. This variable can be adjusted or linked to an existing temperature of interest.

July 22, 2010, at 07:31 PM by 158.35.225.231 -
Changed line 42 from:
  • Thermo - Thermodynamic properties
to:
  • Thermo_* - Thermodynamic properties (* see below for specific properties)
Added line 46:
Added line 49:

Temperature Dependent Property Data

July 22, 2010, at 07:29 PM by 158.35.225.231 -
Deleted line 47:
 Temperature independent properties 
Changed line 49 from:

(:cellnr:) mw

to:

(:cellnr:) thermo_mw

Changed line 52 from:

(:cellnr:) tc

to:

(:cellnr:) thermo_tc

Changed line 55 from:

(:cellnr:) pc

to:

(:cellnr:) thermo_pc

Changed line 58 from:

(:cellnr:) vc

to:

(:cellnr:) thermo_vc

Changed line 61 from:

(:cellnr:) ccf

to:

(:cellnr:) thermo_ccf

Changed line 64 from:

(:cellnr:) mp

to:

(:cellnr:) thermo_mp

Changed line 67 from:

(:cellnr:) tpt

to:

(:cellnr:) thermo_tpt

Changed line 70 from:

(:cellnr:) tpp

to:

(:cellnr:) thermo_tpp

Changed line 73 from:

(:cellnr:) nbp

to:

(:cellnr:) thermo_nbp

Changed line 76 from:

(:cellnr:) lmv

to:

(:cellnr:) thermo_lmv

Changed line 79 from:

(:cellnr:) ighf

to:

(:cellnr:) thermo_ighf

Changed line 82 from:

(:cellnr:) iggf

to:

(:cellnr:) thermo_iggf

Changed line 85 from:

(:cellnr:) igae

to:

(:cellnr:) thermo_igae

Changed line 88 from:

(:cellnr:) shf

to:

(:cellnr:) thermo_shf

Changed line 91 from:

(:cellnr:) sgf

to:

(:cellnr:) thermo_sgf

Changed line 94 from:

(:cellnr:) sae

to:

(:cellnr:) thermo_sae

Changed line 97 from:

(:cellnr:) hfmp

to:

(:cellnr:) thermo_hfmp

Changed line 100 from:

(:cellnr:) snhc

to:

(:cellnr:) thermo_snhc

Changed line 103 from:

(:cellnr:) af

to:

(:cellnr:) thermo_af

Changed line 106 from:

(:cellnr:) rg

to:

(:cellnr:) thermo_rg

Changed line 109 from:

(:cellnr:) sp

to:

(:cellnr:) thermo_sp

Changed line 112 from:

(:cellnr:) dm

to:

(:cellnr:) thermo_dm

Changed line 115 from:

(:cellnr:) r

to:

(:cellnr:) thermo_r

Changed line 118 from:

(:cellnr:) q

to:

(:cellnr:) thermo_q

Changed line 121 from:

(:cellnr:) ri

to:

(:cellnr:) thermo_ri

Changed line 124 from:

(:cellnr:) fp

to:

(:cellnr:) thermo_fp

Changed line 127 from:

(:cellnr:) lfl

to:

(:cellnr:) thermo_lfl

Changed line 130 from:

(:cellnr:) ufl

to:

(:cellnr:) thermo_ufl

Changed line 133 from:

(:cellnr:) lflt

to:

(:cellnr:) thermo_lflt

Changed line 136 from:

(:cellnr:) uflt

to:

(:cellnr:) thermo_uflt

Changed line 139 from:

(:cellnr:) ait

to:

(:cellnr:) thermo_ait

Changed lines 142-143 from:
 Temperature Dependent Property Data 
to:

(:tableend:)

Temperature Dependent Property Data

Changed line 146 from:

(:cellnr:) sd

to:

(:cellnr:) thermo_sd

Changed line 149 from:

(:cellnr:) ld

to:

(:cellnr:) thermo_ld

Changed line 152 from:

(:cellnr:) svp

to:

(:cellnr:) thermo_svp

Changed line 155 from:

(:cellnr:) lvp

to:

(:cellnr:) thermo_lvp

Changed line 158 from:

(:cellnr:) hvap

to:

(:cellnr:) thermo_hvap

Changed line 161 from:

(:cellnr:) scp

to:

(:cellnr:) thermo_scp

Changed line 164 from:

(:cellnr:) lcp

to:

(:cellnr:) thermo_lcp

Changed line 167 from:

(:cellnr:) igcp

to:

(:cellnr:) thermo_igcp

Changed line 170 from:

(:cellnr:) svc

to:

(:cellnr:) thermo_svc

Changed line 173 from:

(:cellnr:) lv

to:

(:cellnr:) thermo_lv

Changed line 176 from:

(:cellnr:) vv

to:

(:cellnr:) thermo_vv

Changed line 179 from:

(:cellnr:) sk

to:

(:cellnr:) thermo_sk

Changed line 182 from:

(:cellnr:) lk

to:

(:cellnr:) thermo_lk

Changed line 185 from:

(:cellnr:) vk

to:

(:cellnr:) thermo_vk

Changed line 188 from:

(:cellnr:) st

to:

(:cellnr:) thermo_st

July 22, 2010, at 07:27 PM by 158.35.225.231 -
Changed lines 48-49 from:
 Temperature independent properties                                     
to:
 Temperature independent properties 
Changed lines 50-82 from:

(:cellnr:) mw (:cell:) Molecular Weight (:cell:) kg/kmol (:cellnr:) tc (:cell:) Critical Temperature (:cell:) K (:cellnr:) pc (:cell:) Critical Pressure (:cell:) Pa (:cellnr:) vc (:cell:) Critical Volume (:cell:) m^3/kmol (:cellnr:) ccf (:cell:) Crit Compress Factor (:cell:) unitless (:cellnr:) mp (:cell:) Melting Point (:cell:) K (:cellnr:) tpt (:cell:) Triple Pt Temperature (:cell:) K (:cellnr:) tpp (:cell:) Triple Pt Pressure (:cell:) Pa (:cellnr:) nbp (:cell:) Normal Boiling Point (:cell:) K (:cellnr:) lmv (:cell:) Liq Molar Volume (:cell:) m^3/kmol (:cellnr:) ighf (:cell:) IG Heat of Formation (:cell:) J/kmol (:cellnr:) iggf (:cell:) IG Gibbs of Formation (:cell:) J/kmol (:cellnr:) igae (:cell:) IG Absolute Entropy (:cell:) J/kmol*K (:cellnr:) shf (:cell:) Std Heat of Formation (:cell:) J/kmol (:cellnr:) sgf (:cell:) Std Gibbs of Formation (:cell:) J/kmol (:cellnr:) sae (:cell:) Std Absolute Entropy (:cell:) J/kmol*K (:cellnr:) hfmp (:cell:) Heat Fusion at Melt Pt (:cell:) J/kmol (:cellnr:) snhc (:cell:) Std Net Heat of Comb (:cell:) J/kmol (:cellnr:) af (:cell:) Acentric Factor (:cell:) unitless (:cellnr:) rg (:cell:) Radius of Gyration (:cell:) m (:cellnr:) sp (:cell:) Solubility Parameter (:cell:) (J/m^3)^0.5 (:cellnr:) dm (:cell:) Dipole Moment (:cell:) c*m (:cellnr:) r (:cell:) van der Waals Volume (:cell:) m^3/kmol (:cellnr:) q (:cell:) van der Waals Area (:cell:) m^2 (:cellnr:) ri (:cell:) Refractive Index (:cell:) unitless (:cellnr:) fp (:cell:) Flash Point (:cell:) K (:cellnr:) lfl (:cell:) Lower Flammability Limit (:cell:) K (:cellnr:) ufl (:cell:) Upper Flammability Limit (:cell:) K (:cellnr:) lflt (:cell:) Lower Flamm Limit Temp (:cell:) K (:cellnr:) uflt (:cell:) Upper Flamm Limit Temp (:cell:) K (:cellnr:) ait (:cell:) Auto Ignition Temp (:cell:) K

 Temperature Dependent Property Data                                    
to:

(:cellnr:) mw (:cell:) Molecular Weight (:cell:) kg/kmol (:cellnr:) tc (:cell:) Critical Temperature (:cell:) K (:cellnr:) pc (:cell:) Critical Pressure (:cell:) Pa (:cellnr:) vc (:cell:) Critical Volume (:cell:) m^3/kmol (:cellnr:) ccf (:cell:) Crit Compress Factor (:cell:) unitless (:cellnr:) mp (:cell:) Melting Point (:cell:) K (:cellnr:) tpt (:cell:) Triple Pt Temperature (:cell:) K (:cellnr:) tpp (:cell:) Triple Pt Pressure (:cell:) Pa (:cellnr:) nbp (:cell:) Normal Boiling Point (:cell:) K (:cellnr:) lmv (:cell:) Liq Molar Volume (:cell:) m^3/kmol (:cellnr:) ighf (:cell:) IG Heat of Formation (:cell:) J/kmol (:cellnr:) iggf (:cell:) IG Gibbs of Formation (:cell:) J/kmol (:cellnr:) igae (:cell:) IG Absolute Entropy (:cell:) J/kmol*K (:cellnr:) shf (:cell:) Std Heat of Formation (:cell:) J/kmol (:cellnr:) sgf (:cell:) Std Gibbs of Formation (:cell:) J/kmol (:cellnr:) sae (:cell:) Std Absolute Entropy (:cell:) J/kmol*K (:cellnr:) hfmp (:cell:) Heat Fusion at Melt Pt (:cell:) J/kmol (:cellnr:) snhc (:cell:) Std Net Heat of Comb (:cell:) J/kmol (:cellnr:) af (:cell:) Acentric Factor (:cell:) unitless (:cellnr:) rg (:cell:) Radius of Gyration (:cell:) m (:cellnr:) sp (:cell:) Solubility Parameter (:cell:) (J/m^3)^0.5 (:cellnr:) dm (:cell:) Dipole Moment (:cell:) c*m (:cellnr:) r (:cell:) van der Waals Volume (:cell:) m^3/kmol (:cellnr:) q (:cell:) van der Waals Area (:cell:) m^2 (:cellnr:) ri (:cell:) Refractive Index (:cell:) unitless (:cellnr:) fp (:cell:) Flash Point (:cell:) K (:cellnr:) lfl (:cell:) Lower Flammability Limit (:cell:) K (:cellnr:) ufl (:cell:) Upper Flammability Limit (:cell:) K (:cellnr:) lflt (:cell:) Lower Flamm Limit Temp (:cell:) K (:cellnr:) uflt (:cell:) Upper Flamm Limit Temp (:cell:) K (:cellnr:) ait (:cell:) Auto Ignition Temp (:cell:) K

 Temperature Dependent Property Data 
Changed lines 146-160 from:

(:cellnr:) sd (:cell:) Solid Density (:cell:) kmol/m^3 (:cellnr:) ld (:cell:) Liquid Density (:cell:) kmol/m^3 (:cellnr:) svp (:cell:) Solid Vapor Pressure (:cell:) Pa (:cellnr:) lvp (:cell:) Liquid Vapor Pressure (:cell:) Pa (:cellnr:) hvap (:cell:) Heat of Vaporization (:cell:) J/kmol (:cellnr:) scp (:cell:) Solid Heat Capacity (:cell:) J/kmol*K (:cellnr:) lcp (:cell:) Liquid Heat Capacity (:cell:) J/kmol*K (:cellnr:) igcp (:cell:) Ideal Gas Heat Capacity (:cell:) J/kmol*K (:cellnr:) svc (:cell:) Second Virial Coefficient (:cell:) m^3/kmol (:cellnr:) lv (:cell:) Liquid Viscosity (:cell:) Pa*s (:cellnr:) vv (:cell:) Vapor Viscosity (:cell:) Pa*s (:cellnr:) sk (:cell:) Solid Thermal Conductivity(:cell:) W/m*K (:cellnr:) lk (:cell:) Liq Thermal Conductivity (:cell:) W/m*K (:cellnr:) vk (:cell:) Vap Thermal Conductivity (:cell:) W/m*K (:cellnr:) st (:cell:) Surface Tension (:cell:) N/m

to:

(:cellnr:) sd (:cell:) Solid Density (:cell:) kmol/m^3 (:cellnr:) ld (:cell:) Liquid Density (:cell:) kmol/m^3 (:cellnr:) svp (:cell:) Solid Vapor Pressure (:cell:) Pa (:cellnr:) lvp (:cell:) Liquid Vapor Pressure (:cell:) Pa (:cellnr:) hvap (:cell:) Heat of Vaporization (:cell:) J/kmol (:cellnr:) scp (:cell:) Solid Heat Capacity (:cell:) J/kmol*K (:cellnr:) lcp (:cell:) Liquid Heat Capacity (:cell:) J/kmol*K (:cellnr:) igcp (:cell:) Ideal Gas Heat Capacity (:cell:) J/kmol*K (:cellnr:) svc (:cell:) Second Virial Coefficient (:cell:) m^3/kmol (:cellnr:) lv (:cell:) Liquid Viscosity (:cell:) Pa*s (:cellnr:) vv (:cell:) Vapor Viscosity (:cell:) Pa*s (:cellnr:) sk (:cell:) Solid Thermal Conductivity (:cell:) W/m*K (:cellnr:) lk (:cell:) Liq Thermal Conductivity (:cell:) W/m*K (:cellnr:) vk (:cell:) Vap Thermal Conductivity (:cell:) W/m*K (:cellnr:) st (:cell:) Surface Tension (:cell:) N/m

Deleted line 191:
July 22, 2010, at 07:25 PM by 158.35.225.231 -
Added lines 45-101:

Thermo objects

 Temperature independent properties                                     

(:table border=1 width=100%:) (:cellnr:) mw (:cell:) Molecular Weight (:cell:) kg/kmol (:cellnr:) tc (:cell:) Critical Temperature (:cell:) K (:cellnr:) pc (:cell:) Critical Pressure (:cell:) Pa (:cellnr:) vc (:cell:) Critical Volume (:cell:) m^3/kmol (:cellnr:) ccf (:cell:) Crit Compress Factor (:cell:) unitless (:cellnr:) mp (:cell:) Melting Point (:cell:) K (:cellnr:) tpt (:cell:) Triple Pt Temperature (:cell:) K (:cellnr:) tpp (:cell:) Triple Pt Pressure (:cell:) Pa (:cellnr:) nbp (:cell:) Normal Boiling Point (:cell:) K (:cellnr:) lmv (:cell:) Liq Molar Volume (:cell:) m^3/kmol (:cellnr:) ighf (:cell:) IG Heat of Formation (:cell:) J/kmol (:cellnr:) iggf (:cell:) IG Gibbs of Formation (:cell:) J/kmol (:cellnr:) igae (:cell:) IG Absolute Entropy (:cell:) J/kmol*K (:cellnr:) shf (:cell:) Std Heat of Formation (:cell:) J/kmol (:cellnr:) sgf (:cell:) Std Gibbs of Formation (:cell:) J/kmol (:cellnr:) sae (:cell:) Std Absolute Entropy (:cell:) J/kmol*K (:cellnr:) hfmp (:cell:) Heat Fusion at Melt Pt (:cell:) J/kmol (:cellnr:) snhc (:cell:) Std Net Heat of Comb (:cell:) J/kmol (:cellnr:) af (:cell:) Acentric Factor (:cell:) unitless (:cellnr:) rg (:cell:) Radius of Gyration (:cell:) m (:cellnr:) sp (:cell:) Solubility Parameter (:cell:) (J/m^3)^0.5 (:cellnr:) dm (:cell:) Dipole Moment (:cell:) c*m (:cellnr:) r (:cell:) van der Waals Volume (:cell:) m^3/kmol (:cellnr:) q (:cell:) van der Waals Area (:cell:) m^2 (:cellnr:) ri (:cell:) Refractive Index (:cell:) unitless (:cellnr:) fp (:cell:) Flash Point (:cell:) K (:cellnr:) lfl (:cell:) Lower Flammability Limit (:cell:) K (:cellnr:) ufl (:cell:) Upper Flammability Limit (:cell:) K (:cellnr:) lflt (:cell:) Lower Flamm Limit Temp (:cell:) K (:cellnr:) uflt (:cell:) Upper Flamm Limit Temp (:cell:) K (:cellnr:) ait (:cell:) Auto Ignition Temp (:cell:) K

 Temperature Dependent Property Data                                    

(:table border=1 width=100%:) (:cellnr:) sd (:cell:) Solid Density (:cell:) kmol/m^3 (:cellnr:) ld (:cell:) Liquid Density (:cell:) kmol/m^3 (:cellnr:) svp (:cell:) Solid Vapor Pressure (:cell:) Pa (:cellnr:) lvp (:cell:) Liquid Vapor Pressure (:cell:) Pa (:cellnr:) hvap (:cell:) Heat of Vaporization (:cell:) J/kmol (:cellnr:) scp (:cell:) Solid Heat Capacity (:cell:) J/kmol*K (:cellnr:) lcp (:cell:) Liquid Heat Capacity (:cell:) J/kmol*K (:cellnr:) igcp (:cell:) Ideal Gas Heat Capacity (:cell:) J/kmol*K (:cellnr:) svc (:cell:) Second Virial Coefficient (:cell:) m^3/kmol (:cellnr:) lv (:cell:) Liquid Viscosity (:cell:) Pa*s (:cellnr:) vv (:cell:) Vapor Viscosity (:cell:) Pa*s (:cellnr:) sk (:cell:) Solid Thermal Conductivity(:cell:) W/m*K (:cellnr:) lk (:cell:) Liq Thermal Conductivity (:cell:) W/m*K (:cellnr:) vk (:cell:) Vap Thermal Conductivity (:cell:) W/m*K (:cellnr:) st (:cell:) Surface Tension (:cell:) N/m (:tableend:)

July 22, 2010, at 07:19 PM by 158.35.225.231 -
Added line 42:
  • Thermo - Thermodynamic properties
March 04, 2010, at 08:00 PM by 158.35.225.227 -
Changed lines 11-26 from:
  • Feed
  • Flash
  • Flash_column
  • Lag
  • Massflow
  • Mixer
  • PID
  • Poly_reactor
  • Pump
  • Reactor
  • Splitter
  • Stage_1
  • Stage_2
  • Stream_lag
  • Vessel
  • Vesselm
to:
  • Feed - Feed stream
  • Fabs - Absolute value
  • Fmax - Maximum value
  • Fmin - Minimum value
  • Fsign - Number Sign (-1 or 1)
  • Flash - Flash
  • Flash_column - Flash column
  • Info - Info file for variable classification
    • Info_FV - Fixed Variable
    • Info_MV - Manipulated Variable
    • Info_SV - State Variable
    • Info_CV - Controlled Variable
    • Info_SVM - Measured State Variable
    • Info_CVM - Measured Controlled Variable
  • Lag - First order lag
  • Lookup - Lookup table
  • LTI - Linear time-invariant, discrete or continuous
  • Mass - Mass of a reserve
  • Massflow - Massflow of a stream
  • Massflows - Massflows of a stream
  • Mixer - Mixer of 2 or more streams
  • PID - Proportional Integral Derivative Controller
  • Poly_reactor - Polymerization reactor
  • Pump - Pump for changes in pressure
  • PWL - Piece-wise Linear
  • Reactor - Vessel with reaction of individual species
  • Recovery - Separation by recovery
  • Splitter - Split of one stream into 2 or more streams
  • Stage_1 - Distillation stage (type 1)
  • Stage_2 - Distillation stage (type 2)
  • Stream_lag - First order lag of streams
  • Vessel - Molar reserve with multiple inlet streams
  • Vesselm - Mass reserve with multiple inlet streams
September 08, 2009, at 08:12 PM by 158.35.225.231 -
Changed line 82 from:
  distill.liq_mixer.inlet2.*          = distill.stage[1].l_out.*
to:
  distill.liq_mixer.inlet[2].*          = distill.stage[1].l_out.*
Changed line 94 from:
  distill.vap_mixer.inlet2.*          = distill.stage[2].v_out.*
to:
  distill.vap_mixer.inlet[2].*          = distill.stage[2].v_out.*
Changed lines 101-102 from:
  distill.reflux.outlet2.*            = distill.stage[1].l_in.*
to:
  distill.reflux.outlet[2].*            = distill.stage[1].l_in.*
Changed lines 140-143 from:
     fd_c2h4  = distill.feed.x(1)
     fd_c3h6  = distill.feed.x(2)
     fd_c3h8  = distill.feed.x(3)
     fd_h2    = distill.feed.x(4)
to:
     fd_c2h4  = distill.feed.x[1]
     fd_c3h6  = distill.feed.x[2]
     fd_c3h8  = distill.feed.x[3]
     fd_h2    = distill.feed.x[4]