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Irrigation System. ME 414: Team 4 Chris Cook Matt Griffey Jason Colgan Breanne Walters Jeremy Johnson. Provide a efficient watering system One inch coverage Layout area as shown Electric Utility Cost Water Waste. Specifications. Very Versatile Head
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Irrigation System ME 414: Team 4 Chris Cook Matt Griffey Jason Colgan Breanne Walters Jeremy Johnson
Provide a efficient watering system One inch coverage Layout area as shown Electric Utility Cost Water Waste Specifications
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 Hunter PGJ Rotor Sprinkler
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
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
ME 414: Project 2: Tube and Shell Heat Exchanger Design Jason Colgan, Chris Cook, Matt Griffey, Jeremy Johnson, Breanne Walters
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
Variable Reduction • From previous iterations these nine were the variables that had the greatest effect on Weight, Length, Q, and ∆P’s
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
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
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