Variable

Default Value

Range

● Steam Input Stream Name
The name of the stream that is connected to the input port for steam.

<None>

Dedicated Input Port

○ Heating Agent Name
Indicates the heating agent used in the evaporator. Click on the list box to bring up a list of available heating agents in order to select one.

Steam

Any Heating Agent

● Supply Temp. of Heating Agent (^oC)
The temperature at which the heating agent is supplied from the utility plant to the evaporator.

152.0

Positive

● Return Temp. of Heating Agent (^oC)
The temperature at which the condensed heating agent returns to the utility plant from the evaporator.

152.0

Positive

● Mass-to-Energy Factor of Heating Agent (kcal/kg)
The difference in the specific enthalpies of the heating agent between the supply and return points.

503.683

Positive

● Duty of Heating Agent (kcal/h)
The heat transfer rate of the heating agent.

0.0

Positive

● Flow of Heating Agent (kg/h)
The mass flow rate of the heating agent.

0.0

Positive

○ Same Properties As Vapor?
Check this box to indicate that the thermodynamic properties of the mixed steam in the heating space of the first effect can be calculated the same way that the properties of recompressed vapor are calculated (i.e., either based on the built-in steam calculator or based on pure component properties, depending on whether the “Calculated for Steam Using Steam Calculator” option is selected or not through the “Effects” tab,). If the “Use Steam Input Stream” option is selected, this option is checked and disabled, by default.

<Yes>

Yes/No

● Flow of Mixed steam in Heating Space of First Effect (kg/h)
The mass flow rate of the mixed steam in the heating space of the first effect.

0.0

Positive

◙ Pressure of Mixed Steam in Heating Space of First Effect (bar)
The pressure of the mixed steam in the heating space of the first effect.

1.013

Positive

◙ Saturation Temp. of Mixed Steam in Heating Space of First Effect (^oC)
The saturation temperature of mixed steam at the specified pressure in the heating space of the first effect.

152.0

Positive

◙ Outlet Temp. of Mixed Steam from Heating Space of First Effect (^oC)
The temperature of condensed mixed steam leaving the heating space of the first effect. If a heating agent is used to represent the mixed steam in the heating space of the first effect (i.e., the “Use Heating Agent” option is selected), the outlet temperature of mixed steam from the heating space of the first effect is automatically set to match the heating agent’s return temperature.

152.0

Positive

● Specific Inlet Enthalpy of Mixed Steam in Heating Space of First Effect (kcal/kg)
The total enthalpy of the motive inlet steam (optional) and recompressed vapor at the heating space inlet of the first effect divided by their total mass flow rate.

0.0

Positive

◙ Specific Outlet Enthalpy of Mixed Steam in Heating Space of First Effect (kcal/kg)
The specific enthalpy of the condensed mixed steam at the heating space outlet of the first effect.

0.0

Positive

● Specific Heat Duty of Mixed Steam in Heating Space of First Effect (kcal/kg)
The difference between the specific inlet and outlet enthalpies of the mixed steam in the heating space of the first effect.

0.0

Positive

○ Entrainment Ratio (wt Vapor/wt Heating Agent)
The entrainment ratio of vapor drawn from the selected effect in the steam-jet ejector. The entrainment ratio is defined as the ratio of the mass flow rate of vapor at the vapor inlet of the steam-jet ejector to the mass flow rate of heating agent at the heating agent inlet of the steam-jet ejector.

1.0

Positive

● Steam Inlet Temperature (^oC)
The temperature of motive steam at the steam-jet ejector’s motive steam inlet. If a heating agent is used (i.e., the “Use Heating Agent” option is selected), it is the same as the supply temperature of the heating agent.

152.0

Positive

● Steam Inlet Specific Enthalpy (kcal/kg)
The specific enthalpy of motive steam at the steam-jet ejector’s motive steam inlet.

0.0

Positive

○ Entrained Vapor Inlet From Effect
The effect from which vapor is drawn and recompressed.

1

Positive

● Entrained Vapor Inlet Pressure (bar)
The pressure of entrained vapor at the vapor inlet of the steam-jet ejector. This is the same as the pressure of vapor in the effect from which the entrained vapor in the steam-jet ejector is drawn.

1.013

Positive

● Entrained Vapor Inlet Temperature (^oC)
The temperature of entrained vapor at the vapor inlet of the steam-jet ejector. This is the same as the pressure of vapor in the effect from which the entrained vapor in the steam-jet ejector is drawn.

25.0

Positive

● Entrained Vapor Inlet Specific Enthalpy (kcal/kg)
The specific enthalpy of entrained vapor at the vapor inlet of the steam-jet ejector. This is the same as the specific enthalpy of vapor in the effect from which the entrained vapor in the steam-jet ejector is drawn.

0.0

Positive

● Entrained Vapor Flow (kg/h)
The mass flow rate of entrained vapor in the steam-jet ejector.

0.0

Positive

● Recompressed % (% of Vapor in Effect)
The percentage of produced vapor in the chosen effect that is drawn from that effect and directed to the steam-jet ejector.

0.0

[0,100)

● Steam Ejector Outlet Pressure (bar)
The pressure of the mixture of entrained vapor and motive steam at the steam-jet ejector’s outlet.

1.013

Positive

● Steam Ejector Outlet Specific Enthalpy (kcal/kg)
The specific enthalpy of the mixture of entrained vapor and motive steam at the steam-jet ejector’s outlet.

0.0

Positive

● Steam Ejector Outlet Flow (kg/h)
The mass flow rate of the mixture of entrained vapor and heating agent at the steam-jet ejector’s outlet.

0.0

Positive