DESIGN

Condenser Tab

This tab is for selection and input of condenser design conditions for Design Heat Balance.

Condenser Pressure (P2) text box

To show condenser pressure same with that of "Steam" tab.    This is not for User input.

 If User changes condenser pressure, the condenser TTD(Terminal Temperature Difference) value is automatically changed.   If the condenser TTD being changed automatically is less than 5 oF, the condenser pressure input by User is changed automatically to maintain the condenser TTD as 5 oF.   Condenser TTD of 5 oF is the minimum TTD recommended by HEI Standard of USA.

 

Condenser Sat. Temp. text box

To show condenser saturation temperature that is calculated automatically when the condenser pressure is changed.   This is not for User input.

 

Condenser TTD text box

To input condenser TTD(Terminal Temperature Difference).

Condenser TTD is condenser saturation temperature minus condenser outlet CW(Cooling Water) temperature.

If condenser TTD is changed by User, Condenser CW Temp. Rise value is automatically changed.   If the Condenser CW Temp. Rise being changed automatically is less than 1 oC, CW Inlet Temp. is changed automatically to maintain the condenser CW Temp. Rise as 1 oC.

According to the HEI Standard of USA, if Condenser TTD is less than 5 oF, condenser performance can not be predicted and not recommended.

User can not input less than 5 oF for Condenser TTD.

 

CW Inlet Temp. text box

To input Condenser Inlet CW(Cooling Water) temperature.

If CW Inlet Temp. is changed by User, Condenser TTD value is automatically changed.   If the Condenser TTD being changed automatically is less than 5 oF, the CW Inlet Temp. is changed automatically to maintain the condenser TTD as 5 oF.

User can not input less than 1 oC for CW Inlet Temp.

CW Temp. Rise text box

To input Condenser CW(Cooling Water)Temperature Rise.

If CW Temp. Rise is changed by User, Condenser TTD value is automatically changed.   If the Condenser TTD being changed automatically is less than 5 oF, the CW Inlet Temp. is changed automatically to maintain the condenser TTD as 5 oF.

 

CW Outlet Temp. text box

To show Condenser CW(Cooling Water) Outlet Temperature.   This is not for User input.

CW Outlet Temp. is CW Inlet Temp. plus CW Temp. Rise.

 

No. of Tube Passes combo box

To select Condenser Tube Pass Number.

There are four selections, i.e. Single Pass, Two Passes, Three Passes and Four Passes.

 

Tube Velocity, Tube O.D., Tube Thickness(BWG), Tube Material, Tube Cleanliness Factor, combo boxes and text box

To select and input design data for calculating condenser surface area according to the HEI Standard of USA.

 

Make-up Water text box

To input the make-up water flow rate to condenser in percentage of (HP) turbine inlet steam flow of Design Heat Balance.

If there is mass loss out of turbine cycle like boiler blow-down, make-up water is required to make turbine cycle mass balanced.

 

Make-up Water Temp. text box

To input Make-up Water temperature.

Make-up Water temperature is to be in between 0 oC and 100 oC.

 


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