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  ThermoFluidCalc — Offline Fortran Execution Guide
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Calculator : Multi-Effect Evaporator Sizing
Category   : Exchangers

Files Included:
  - evaporator_design.f90 (Fortran Source Code)
  - input.txt (Pre-configured Sample Input)

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1. How to Compile
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Make sure you have a Fortran compiler installed (like gfortran).
Run the following compilation command in your terminal:

  gfortran -O3 evaporator_design.f90 -o evaporator_design

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2. How to Execute
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Run the compiled binary and redirect the input.txt file into stdin:

  evaporator_design < input.txt

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3. Input File Details
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The input file 'input.txt' contains sequential parameters separated by
newlines. Here is the structure of the included 'input.txt':

  Line 1 (Feed mass flow rate mf [kg/s]
): 5
  Line 2 (Feed solute mass fraction xf
): 0.12
  Line 3 (Product solute mass fraction xp
): 0.65
  Line 4 (Heating steam temperature Ts [Â°C]
): 120
  Line 5 (Number of effects (1 to 6)
): 3
  Line 6 (Boiling point elevation (BPE) coefficient
): 1.78
  Line 7 (Overall heat transfer coefficient U0 [W/m2K]
): 2500
  Line 8 (Last effect condenser temperature Tc [Â°C]): 50

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