| Heat Exchanger Input | Description |
| GasPthCharIn1 | Gas Path Characteristics Input 1, 5x1 vector consisting of:
- W - gas path flow [pps] - ht - enthalpy [BTU/lbm] - Tt - Total Temperature [degR] - Pt - Total Pressure [psia] - FARc - Combusted Fuel to Air Ratio [frac] |
| GasPthCharIn2 | Gas Path Characteristics Input 2, 5x1 vector consisting of:
- W - gas path flow [pps] - ht - enthalpy [BTU/lbm] - Tt - Total Temperature [degR] - Pt - Total Pressure [psia] - FARc - Combusted Fuel to Air Ratio [frac] |
| Heat Exchanger Output | Description |
| GasPthCharOut1 | Gas Path Characteristics Output 1, 5x1 vector consisting of:
- W - gas path flow [pps] - ht - enthalpy [BTU/lbm] - Tt - Total Temperature [degR] - Pt - Total Pressure [psia] - FARc - Combusted Fuel to Air Ratio [frac] |
| GasPthCharOut2 | Gas Path Characteristics Output 2, 5x1 vector consisting of:
- W - gas path flow [pps] - ht - enthalpy [BTU/lbm] - Tt - Total Temperature [degR] - Pt - Total Pressure [psia] - FARc - Combusted Fuel to Air Ratio [frac] |
| E_data | Heat Exchanger Data, 2x1 vector consisting of:
- dQ - Delta Energy [BTU/sec] - E - heat exchanger effectiveness |
| Heat Exchanger Mask Variablet | Description |
| dP1_M | Delta Pressure of input 1 (frac loss) |
| dP2_M | Delta Pressure of input 2 (frac loss) |
| E_M | Heat Exchanger Effectiveness |
| iDesign_M | Design fork (0, 1, 2)
0 - iDes Enabled, Calculate heat exchanger input effectiveness based on design variable When iDesign is set to 0, E_M from the General tab will not be used. Delta energy calculated will be saved in the specified file (FVar_M). 1 - Heat Exchanger effectiveness will be overwritten (mask Initialization) with values from a specified file (FVar_M). When iDesign is set to 1, E_M from the General tab and the Design values from the iDesign tab will not be used. 2 - Effectiveness from the General tab will be used in the module. When iDesign is set to 2, E_M from the General tab will be used; Design values and file definitions from the iDesign tab will not be used. |
| dQDes_M | Design delta energy [BTU/sec] |
| FVar_M | File name for iDes Variables |
| SVar_M | iDes Variable Surname |
| ENm_M | iDes effectiveness variable name |