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HE DOE-Optimization

HE DOE-Optimization. Design of Heat Exchanger Justin Hollman Steve Williams Anthony Joseph Michael Dunkin Michael Gill. Process of Design and Optimization. Adjust settings of input to achieve R=1 design. Analyze each factor of design to find factors that will affect output .

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HE DOE-Optimization

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  1. HE DOE-Optimization Design of Heat Exchanger Justin Hollman Steve Williams Anthony Joseph Michael Dunkin Michael Gill

  2. Process of Design and Optimization • Adjust settings of input to achieve R=1 design. • Analyze each factor of design to find factors that will affect output. • Selected mass flow rate through the shell, baffle spacing, tube outer diameter, tube length, and shell inner diameter. • Execute optimization using effects plots, interaction plots, pareto charts, and other statistical optimization tools. • Input optimized results into program to observe results. • Repeat for 2nd run.

  3. Heat Exchanger Pareto Charts • 2nd level correlations were chosen after correlation comparison showed that they had better composite desirability. • All chosen factors are of considerable importance to some response.

  4. Effects Plots for Chosen Factors • Chosen factors not removable due to considerable affect on system outputs. • Factors chosen based on analysis of each individual factor.

  5. Optimization with Output. Heat Transfer Rate ====================================== Desired Heat Transfer Rate = 77153.12 W Calculated Heat Transfer Rate = 55097.29 W Difference = 22055.83 W Desired-to-Calculated Ratio = 1.40 Heat Exchanger Geometry Considerably Under Sized Increase Heat Transfer Coefficient or Surface Area Shell Reynolds Number Outside the range for Friction Factor Equation Shell Side Pressure Drop May Have A Higher Error HE Pressure Drop ===================== Shell Side Delta-P = 445382.84 Pa Tube Side Delta-P = 523.22 Pa Heat Exchanger Weight ===================== Shell Weight = 0.85 kg Tube Weight = 8.33 kg Shell Fluid Weight = 8.04 kg Tube Fluid Weight = 5.45 kg ----------- Total HE Weight = 22.66 kg ************************************** Successfull Termination **************************************

  6. Heat Exchanger Pareto Charts for 2nd run. • 2nd level correlations were chosen after correlation comparison showed that they had better composite desirability. • All chosen factors are of considerable importance to some response.

  7. Heat Transfer Rate ====================================== Desired Heat Transfer Rate = 77613.91 W Calculated Heat Transfer Rate = 55295.87 W Difference = 22318.04 W Desired-to-Calculated Ratio = 1.40 Heat Exchanger Geometry Considerably Under Sized Increase Heat Transfer Coefficient or Surface Area Shell Reynolds Number Outside the range for Friction Factor Equation Shell Side Pressure Drop May Have A Higher Error HE Pressure Drop ===================== Shell Side Delta-P = 450201.60 Pa Tube Side Delta-P = 523.21 Pa Heat Exchanger Weight ===================== Shell Weight = 0.85 kg Tube Weight = 8.33 kg Shell Fluid Weight = 8.04 kg Tube Fluid Weight = 5.45 kg ----------- Total HE Weight = 22.66 kg ************************************** Successfull Termination ************************************** Optimization with Output. Results are similar to 1st run.

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