Chem Cad Features

7/25/2019 Chem Cad Features

1/13

Chem Cad Features


2/13


3/13


4/13

Inputs and OutputsText Reports

CHEMCAD can produce a wide array of customizable text-based simulationreports, based on stream data, Unit Operation data, flow sheet data, or

dynamics. If you prefer, you can produce one consolidated report incorporating

all of the available text report data.

Report Setup

Before you run, view, or print reports, you should check the settings thatdetermine which programs CHEMCAD will use to display and print your reports.

For individual text reports, you can choose to use either WordPad or Excel.

By default, CHEMCAD uses WordPad. To switch to Excel, select Tools > Options >

Report Viewer Settings and then check the box called Use Microsoft Excel instead

of WordPad. Click OK to return to the main CHEMCAD workspace.

For the consolidated report, you can use either Word or Excel. To choose a

program to display and print this report, select Report > Consolidated Report,

then click Report Format at the top of the Consolidated Report menu.


5/13

Types of Report

Stream-based Reports

UnitOp-based Reports

Flow sheet-based Reports

Dynamics Reports

Consolidated Report

Graphical Reports


6/13


7/13


8/13

Graphical ReportsThermo physical Data Graphs

CHEMCAD offers a number of graphical reports that relate specifically to the selected

components and thermodynamics options. To access any of these plots, select the

appropriate item from the Plot menu.TPXY

This selection generates vapor-liquid equilibrium curves between any two

components, with an optional third component. You can include TPXY, TXY, activity

coefficient, and fugacity coefficient curves.

Binary LLE

This selection generates liquid-liquid equilibrium curves between any two

components.

Binodal Plot

This selection generates a ternary phase diagram showing the distribution of three

selected components in two liquid phases.

Residue CurvesThis selection generates and plots a graphical display of distillation zones, azeotropes,

and residue curves associated with a user-specified tertiary mixture.

Binodal/Residue Curves

This selection creates a plot that combines the curves from a binodal plot and a

residue curve plot. This is useful when working with heterogeneous azeotropic

distillation.


9/13

Flow sheet-based Graphs

To view graphical reports that reflect your overall simulation, select one of the

following from the Plot menu:

Stream Properties: Plots one selected stream property for a selected stream in

the flow sheet

Phase Envelopes: Plots a phase envelope for a given stream, highlighting the

critical point of the mixture; can include plots at vapor fractions

Composite Curves: Plots composite heat curves for the entire flow sheet, as

well as optional heat curves for individual UnitOps

Pseudo component Curves: Displays a plot of one or more distillation curves

for a stream.


10/13

UnitOp-based Plots

CHEMCAD offers several plots that display data for a single UnitOp. To access any of

these plots, select Plot > UnitOp Plots and then select one of the following options.Tower Profiles

This selection plots compositions, temperature, and flow profiles for distillation columns.

Heat Curves

This selection plots heating and cooling curves for a selected heat exchanger.

Plug Flow Reactor Profile

This selection plots the temperature or composition profiles along the axial length of a

kinetic plug flow reactor.

Pipe Profile

This selection plots fluid properties for pipe UnitOps along the axial length of the pipe.

This plot requires that the pipe contain multiple segments.

Controller Convergence

For controllers that have not converged, this plot enables you to diagnose the controller

behavior that is preventing convergence. The plot shows how the controller error

function changes with iteration.


11/13


12/13

Process Flow DiagramsFlow sheet Databoxes

CHEMCAD offers four types of databoxes:

Stream Box: Lists the streams that you select in a single table, along with the

stream properties that you choose to include

UnitOp Box: Generates a separate databox for each selected UnitOp

TP Box: Generates separate summary databoxes for selected streams

Excel Range Box: References a range of cells from an Excel worksheet

TP BoxesCHEMCAD can create databoxes, called TP boxes, which display any combination of

temperature, pressure, and flow rate for all streams or selected streams on a flow sheet.

Excel Range BoxesAn Excel range box displays dynamic data from a specified cell range in a specified

Excel worksheet.


13/13

TP boxes added to a simple flow sheet

Chem Cad Features

Documents

Transcript of Chem Cad Features