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Project 1: Design of Car Ventilation System

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Minimize pressure losses in each branch. Equalize pressure losses in each branch ... Pipe material is plastic. AFT MODEL. Results for Left Branch ... – PowerPoint PPT presentation

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Title: Project 1: Design of Car Ventilation System


1
Project 1 Design of Car Ventilation System
  • ME 414
  • Professor Toksoy
  • Fall 2006
  • Group members
  • Adam Spindler
  • Mike Hay
  • Phil Palmer
  • Brian Schludecker
  • Joe Mcguire

2
Objectives
  • Minimize pressure losses in each branch
  • Equalize pressure losses in each branch
  • Approximately equal velocities at exits
  • Use AFT software to optimize the design

3
  • Qinlet0.005 m3/s
  • Qbranch0.0016 m3/s
  • Exit pressure 1 atm
  • Pipe material is plastic

4
AFT MODEL
5
Results for Left Branch
  • Minimize pressure drop in the left branch
  • Smooth bends used to reduce flow resistance
  • r/d 1 ? K 0.36
  • r/d2 ? K 0.216
  • Location of contractions
  • Total Pressure Losses 0.0614 Pa
  • Outlet Velocity 1.39 m/s

6
Results for Right Branch
  • Equalize Pressure Losses in right branch to that
    in the Left branch
  • Used smooth bend to reduce flow resistance
  • r/d 2 ? K 0.2142
  • Total Pressure Loss 0.0606 Pa
  • Outlet Velocity 1.39 m/s

58 cm
7
Results for Middle Branch
  • Equalize Pressure Losses in middle branch to that
    in the Left and right branch
  • No losses due to bends
  • Largest exit area
  • Total Pressure Losses0.0604 Pa
  • Exit Velocity 1.04 m/s

8
Conclusions
  • Pressure Losses were minimized in left branch
  • Pressure Losses were approximately equalized in
    each branch.
  • Exit velocities were the same in the left Right
    branch slightly lower in middle branch.
  • Total weight of raw material is 1.1706 kg
  • Total cost can be found by multiplying this value
    by a specified (/kg) value for any specified
    material.

9
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