Erich Vaughan Ryan Adams Brandon Gerber Jonah Lindner

1
LAKOTA CAET TEAM
Erich Vaughan Ryan Adams Brandon Gerber Jonah
Lindner
Faculty Advisor Dr. Earl Duque
College of Engineering and Technology Capstone
Design Presentation April 26, 2002
2
AEROMAG Corporation
A next generation wind turbine generator and
solar energy company specializing in hybrid
renewable energy systems and components.
AEROMAG Specializes in
Helping you get off the grid
But how?

• Wind Energy Systems

• Solar Energy Systems

• Micro Hydroelectric Systems

Lakota CAET Team Capstone Design Presentation
3
Executive Summary
AEROMAG Corporation of Prescott Valley, AZ
requires a working model of a Lakota Compressed
Air Energy Turbine (CAET).
Lakota is an existing wind turbine, which will be
retrofitted to power a compressor. Lakota CAET is
the compressor and Lakota combination.
Lakota CAET facilitates compressed air energy
storage via a ground level pressure vessel for a
variety of applications.
Lakota CAET Team Capstone Design Presentation
4
What is CAET?
C OMPRESSED
A IR
E NERGY
T URBINE
Lakota CAET Team Capstone Design Presentation
5
Air-Lift Water Pump
Water Out
Compressed Air In
Lakota CAET Team Capstone Design Presentation
6
Air-Lift Water Pump Application
PUMP
Lakota CAET Team Capstone Design Presentation
7
Pond Aeration
Lakota CAET
Air-line
Aeration Stone
Lakota CAET Team Capstone Design Presentation
8
Soil Sparging
Lakota CAET Team Capstone Design Presentation
9
State of the Art
Current Compressed Air Energy Turbines
Bowjon Rancher
Airlift Technologies
Lakota CAET Team Capstone Design Presentation
10
Lakota Profile
Lakota CAET Team Capstone Design Presentation
11
Lakota Detail
Face Plate
Housing
Nose Cone
Yaw
Lakota CAET Team Capstone Design Presentation
12
Furled Turbine
Wind
Furling Springs
Lakota CAET Team Capstone Design Presentation
13
Deliverables/Scope of Work

• Select Compressor and Seal
• Design/Analyze Compressor Housing, Yaw
• Assembly, Shaft
• Develop Bench Test Procedure
• Produce Final Drawings (AutoCAD R14)
• AEROMAG Machines Parts needed for CAET
  Prototype
• Build and Bench Test Prototype

Lakota CAET Team Capstone Design Presentation
14
Functional Requirements

• Compressor geometry must not interfere with
  furling or flow
• characteristics
• Compressed air transport must be incorporated
  into yaw
• assembly
• Compressed air will be stored in pressure
  vessel
• Pressure vessel must exhaust excess air
  pressure
• 6 mph cut-in speed
• Survive wind speeds up to 120 mph
• Obtain maximum power between 8-9 mph

Lakota CAET Team Capstone Design Presentation
15
Nonfunctional Requirements

• Must utilize as much existing material as
  possible
• Design must meet AEROMAGs aesthetic standards
• Design must be economically viable
• Ten year design life with one scheduled
  maintenance action
• Manufacturing drawings must utilize metric
  dimensions

Lakota CAET Team Capstone Design Presentation
16
Retrofit of Existing Castings/Components

• Compressor and Seal Integration
• Shaft Coupling
• Machine Design / FE Model
• Manufacturing Drawings

Lakota CAET Team Capstone Design Presentation
17
Compressor Selection

• Oil-less
• One maintenance action every 5 years
• Size Constraints
• Overall length lt 6 in.
• Weather Resistance (possible marine applications)
• Availability

Lakota CAET Team Design Review Presentation
18
Gast 1534 Compressor
Lakota CAET Team Capstone Design Presentation
19
Features of Gast 1534

• Oil-less
• Rotary Vane
• Rugged construction/low maintenance
• Design life of approximately 10,000 hours
• 2.2 cfm at 0 psi, 2 cfm at 10 psi
• 5000 rpm operating range
• Compact size (4.05L x 3.62W x 3.52H)
• Light weight (3 lbs.)
• Counter-Clockwise rotation

Lakota CAET Team Capstone Design Presentation
20
Lakota CAET Shaft
Lakota CAET Team Capstone Design Presentation
21
Lakota CAET Compressor Housing
Back View
Front View
Side View
Lakota CAET Team Capstone Design Presentation
22
Lakota CAET Yaw Housing
Lakota CAET Team Capstone Design Presentation
23
Lakota CAET Yaw Housing
Bushing
Seal
Lakota CAET Team Capstone Design Presentation
24
Lakota CAET Yaw Shaft
Stainless Steel Sleeve
Lakota CAET Team Capstone Design Presentation
25
Lakota CAET Prototype Flange
Front View
Side View
Lakota CAET Team Capstone Design Presentation
26
3D Yaw Housing Model
Lakota CAET Team Capstone Design Presentation
27
Finite Element Model
Lakota CAET Team Capstone Design Presentation
28
Finite Element Model
Lakota CAET Team Capstone Design Presentation
29
Lakota CAET Assembly In Standard Operating
Position
Lakota CAET Team Capstone Design Presentation
30
Furled Lakota CAET Assembly
Lakota CAET Team Capstone Design Presentation
31
Redesign of Furling Mechanism

• Eliminate bumper stop
• Incorporate steel
• cable inside springs

Cable attaches here
Lakota CAET Team Capstone Design Presentation
32
Bench Test Schematic
RPM
Digital Scale
DC Motor
Lakota CAET Team Capstone Design Presentation
33
Torque vs. RPM Curves
Lakota CAET Team Capstone Design Presentation
34
Out of House Components
Lakota CAET Team Capstone Design Presentation
35
LAKOTA CAET TEAM
Lakota CAET Team Capstone Design Presentation