Irrigation System

1
Irrigation System

• ME 414 Team 4
• Chris Cook
• Matt Griffey
• Jason Colgan
• Breanne Walters
• Jeremy Johnson

2
Specifications

• Provide a efficient watering system
• One inch coverage
• Layout area as shown
• Electric Utility Cost
• Water Waste

3
Hunter PGJ Rotor Sprinkler

• Very Versatile Head
• Pressure Range with Large Radii Range
• Under 10 per Head
• Adjustable Radii
• Adjustable Heads for Required Pressures
• Good Range for Precipitation Rates

4
Sprinkler Head Layout
5
AFT Verification by Zones

• Each Zone was modeled in AFT
• 4 Zones
• Common radii or general area
• General Components set with 52.5 K value
• End Components Modeled with Sprinkler
• Hunter Professionals Gave Exit Flow Area
• Assumed 60psi
• PVC-Gauge 40 Pipe with Default Resistance

6
Example Zone 1
7
Combined AFT Results

• AFT was run for all 4 Zones
• Overall Pressure Drops
• Concerned about pressure at each Head
• All pressures were in check for each Head

8
Overall System Results
9
Questions
10
ME 414 Project 2 Tube and Shell Heat Exchanger
Design

• Jason Colgan, Chris Cook, Matt Griffey, Jeremy
  Johnson, Breanne Walters

11
Design Parameters

• Remove 1.2 Megawatts of power
• Process Water
• Inlet 90ºC
• Outlet 40ºC
• City water
• Inlet during summer 25ºC
• Optimal Length 4-6 meters

12
Original Design Parameters
13
Variable Reduction

• From previous iterations these nine were the
  variables that had the greatest effect on Weight,
  Length, Q, and ?Ps

14
Main Effect Plots
15
Pareto Charts for Optimization

• Shell side pressure drop- Shell I/D had the
  greatest effect
• Heat Exchanger overall weight- Shell I/D and Tube
  Length
• Tube pressure drop- Mass flow rate through the
  tubes, Shell I/D and Tube Length

16
Optimization Results
17
Adjusted Optimized Results
18
Comparison of Results

• The optimized design- lower pressure drop and a
  shorter length than the original but heat
  transfer rate was too low
• The adjusted optimized design- lowest pressure
  drop, medium length, and heat transfer rate off
  by 4 but highest mass
• Initial design- closest heat transfer rate,
  lowest mass, highest pressure drop, but longest
  length

19
Conclusions

• Depending on the most stringent requirements two
  of these designs are valid
• Initial Design
• Closer Heat transfer rate- 1.205 MW
• Longer Length- 5.15 m
• Higher Pressure Drops-?Pt 77.21 Pa ,?Ps 57.58Pa
• Lower Mass- 1653.42 kg
• Adjusted Optimized Design
• Close Heat Transfer Rate- 1.15 MW
• Shorter Length- 4.4m
• Lower Pressure Drop- ?Pt 38.92 Pa ,?Ps 37.55
  Pa
• Higher Mass- 1945.79 kg

20
Questions

• ?