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Data Description
| Data | Unit | Description | ||
| Set | Item | Type | Native | |
| Equipment Properties | Tube Outlet Flow Given | If True the current tube outlet flow is used as the tube side flow. If False the current tube inlet flow is used as the tube side flow. | ||
| Shell Outlet FlowGiven | If True the current shell outlet flow is used as the shell side flow. If False the current shell inlet flow is used as the shell side flow. | |||
| Heat Loss | Fraction or Percent | Fraction | The fraction of the total heat transferred that is lost. | |
| Tube Side Pressure Drop | Pressure Change | psi | The change in pressure on the tube side of the exchanger. | |
| Shell Side Pressure Drop | Pressure Change | psi | The change in pressure on the shell side of the exchanger. | |
| Tube Outlet Temp |
Temperature | F | The temperature of the tube outlet. | |
| Shell Outlet Temp |
Temperature | F | The temperature of the shell outlet. | |
| Approach Temp |
Temperature Change | Delta F | The approach temperature (Approach Temperature = Shell Inlet Temperature - Tube Outlet Temperature). | |
| Heat Trans Area |
Area | ft2 | Total area through which heat is transferred. | |
| Heat Trans Coef |
Heat Transfer Coefficient | BTU/hr/F/ft2 | The overall heat transfer coefficient. | |
| Temperature Warning |
If checked (True), displays a warning if the tube outlet temperature is greater than the shell outlet temperature. | |||
| Output Data | Heat Transferred | Energy Flow | BTU/hr | Energy flow between tube and shell. |
Equipment Properties
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Example of using equipment
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Method&Equations
If the Tube Outlet Temperature or the Shell Outlet Temperature specified, the model calculates the resulting enthalpy of the outlet stream and the outlet temperature.
If it is specified the Approach Temperature the model can calculate the Shell Outlet Temperature, the total heat transferred and the Tube Outlet Temperature.
If it is specified the Heat Transfer Area and the Heat Transfer Coefficient, the CounterCurrent_Heatx model uses an error function to calculate the outputs. The error function is the difference between the calculated heat exchanger area and the specified area as a function of shell side outlet enthalpy.
Warnings
Tube out hotter than shell in!
Shell out colder than cold in!
Errors
Tube outlet temperature exceeds inlet range!
| Related Topics |
| Heat Exchanger Example |