Pipe Quenching

1
Pipe Quenching

• Heat Transfer Project
• Aaron Rowe
• Kenneth Johnson

2
Introduction

• 1200 F pipe coming out of Annealing Oven
  present hazard to handlers
• Pacific States Cast Iron Pipe Co. has challenged
  us to come up with a table to show how long it
  would take and how much water would be needed to
  cool the pipe to 650 F

3
Boiling Curve
4
Example of Film Boiling

• http//www.spaceflight.esa.int/users/fluids/TT_boi
  ling.htm

5
Different Size Pipe

• Pipe Range from 6.5 to 32 O.D.
• This effects time and water flow needed

6
Largest Possible Pipe
32
7
Oven Exit

• PSCIPCO will design system to expose pipe to flow
  for specified time

8
Equations Used

• Find h_bar
• Using
• With

9
Solution
10
Spreadsheet
11
Conclusion Recommendations

• The maximum amount of water needed and the time
  the pipe must be exposed is 27 gallons per
  minute for 3 min. 20 sec.
• When running smaller pipe, operator may choose to
  speed up conveyor belt or decrease water flow

12
THANK YOU