Condensation: Oper. Conds Tab

CondensationOperConds.jpg
Variable Definitions, Ranges and Default Values

The following table shows a brief description of the variables appearing in this tab. The table also displays their default values and their generally acceptable range:

Variable

Default Value

Range

 

○ Feed Condensation (% mol)

0.0

0 – 100

○ Component Condensation (% mol)

50.0

0 – 100

○ Ref. Comp.
Indicates the component of the feed stream for which a reference component condensation percentage is specified. Click on the list box to bring up a list of registered components in order to select one.

<None>

Any Pure Component

◙ Condensation (%)

0.0

0 – 100

○ Operating Temp. (C)

20.0

Positive

○ Operating Pressure (atm)

1.0

Positive

● Cooling Load (kcal/h)
The heat transfer rate of the cooling agent.

0.0

Positive

○ Cooling Agent Name
Indicates the cooling agent used for the operation. Click on the list box to bring up a list of available cooling agents in order to select one.

<Chilled Water>

Any Cooling Agent

● Inlet Temp. (oC)
The inlet temperature of the cooling agent.

5.0

Positive

● Outlet Temp. (oC)
The outlet temperature of the cooling agent.

10.0

Positive

● Rate (kg/h)
The mass flow rate of the cooling agent.

0.0

Positive

○ Heat Transfer Efficiency(%)
The heating agent consumption efficiency. Specify a value below 100% to account for heat losses to the surroundings when a heating agent is used.

90.0

[0,100)

○ Temperature Difference Factor

1.0

Positive

○ Heat Transfer Coeff. (kcal/h-m2-°C)

740.504

Positive

Symbol Key: ○ User-specified value (always input); ● Calculated value (always output); ◙ Sometimes input, sometimes output

 

Specification Choices / Comments

•Vapor/Liquid Split...

You can set the vapor-liquid splits or let those be calculated by thermodynamic modeling (i.e., the  PS toolbox).

•Problem Specification...

In order to solve the system of equations eq. (A.273)- eq. (A.277), two variables need to be specified. In terms of flash problem specifications, the following flash problems are supported:

Flash Problem Type

Variables specified

 

 

Isothermal

T, P

Feed vapor percentage

V/F, P

Component vapor percentage

yiV, P