R I T 05002 Micro Turbine III Senior Design

R I TR I T

0500205002Micro Turbine III Senior DesignMicro Turbine III Senior Design

The Team

Lincoln Cummings (IE) – Project Manager

Joe Calkins (ME) – Chief Engineer

Mark Fazzio (ME) – Technical Writer

Allison Studley (ME) – Minutes Taker

Dr. Kozak – Faculty Advisor

Dr. Walter – Faculty Coordinator

Sponsor – RIT Mechanical Engineering Dept.

05002 Micro Turbine III Senior Design05002 Micro Turbine III Senior Design

Team Assignments


05002 Micro-Turbine ProjectLeader – Cliff CummingsMentor – Prof. Jeff Kozak

Fuel SystemsLead – MarkAsst. - Cliff

PDR/CDR

PaperLead – Mark

PresentationLead - Joe

Turbine and HousingLeads – Joe/Allison

Mission StatementWe will design and build a micro-turbine/generator that can be integrated onto a micro-air-vehicle airframe and power the vehicle’s accessories. The micro-turbine will be a continuation of the previous team’s project with the application of their design to be used for MAV power production.


Background• Current battery technology causes the

battery to be up to half of the weight of the MAV.

• Research into lighter weight power generation methods led to micro-turbine generators.

• Third generation RIT Senior Design project


Primary Objectives• Produce a constant 5 watts of power• Overall weight of less than 45 grams• Integrated into the MAV airframe• Minimum flight time of 3 minutes

Additional Objectives• Drive the propeller of the plane• Increase efficiency of the system


Previous Design


Previous Turbine Design


Senior Design Team 04013

Concept Considerations

• Smaller housing needed to integrate into MAV airframe

• Compressed gas containers must be integrated into MAV airframe

• Components capable of high rotational speeds• Containment of high pressures within the system• Minimum 3 minute run time• Overall system weight goal of 45 grams


Research Methods


• Preliminary Research

• Review of last year’s design

• Additional Research

Feasibility Assessment

Last Year's Design 2 Inlet 2 Outlet ConceptCost 3 2Size 3 2Weight 3 3Availability 3 3Manufacturability 3 2

Average 3.00 2.40Normalized Average 1.00 0.80


• 2 Options – Direct Comparison

• >2 Options – Weighted ComparisonWeighting Air Bearings Magnetic Bearings Axial Bearings Radial Bearings

Cost 0.2 4 4 3 2Size 0.1 5 5 2 2Weight 0 3 3 3 3Availability 0.35 5 5 2 2RPM Rating 0.35 2 2 3 3

Weighted Average 3.75 3.75 2.55 2.35Normalized Average 1.25 1.25 0.85 0.78

Feasibility AssessmentConsiderations

• Ability to meet the objectives

• Overall Size

• Total Weight

• Availability of procured items

• Ease of Manufacture

• Cost of procurement/manufacture


Turbine Concepts


3-D Pelton Wheel Turbine


Francis Turbine

Axial Impulse Turbine

Turbine Feasibility


Turbine Feasibility




Francis Turbine

Axial Impulse Turbine

?

Housing Concept• Cross flow design• 2 Inlets – 2 Outlets• Tight tolerances to

prevent flow from going around the turbine.

• 30% Fiberglass reinforced Nylon material

• Overall Size: 1.25” OD

0.6” Depth


Housing Feasibility• Smaller OD• Lighter weight• O-Ring seal vs.

Gasket seal• Inlet/Outlet redesign• Designed for

manufacturability


Housing Analysis


Propellant System Concepts

Fuel• Compressed CO2 Cartridges• Compressed N2 Cartridges• Compressed Air TanksTubing• Flexible plastic lines• Rigid metal linesRegulator• Bellows regulator to decrease the inlet pressure• Micro nozzle to decrease the inlet pressure


Propellant System Feasibility

Fuel• Compressed CO2 Cartridges• Compressed N2 Cartridges• Compressed Air TanksTubing• Flexible plastic lines• Rigid metal linesRegulator• Bellows regulator to decrease the inlet pressure• Micro nozzle to decrease the inlet pressure


Other Design Concepts/Considerations

• Bearings: Sealed Air Shielded Magnetic

• Seals: O-Ring Gasket

• Use outlet flow in rear of wings/plane to reduce pressure drag


Test Setup

• Test initially using

laboratory supplied

compressed nitrogen.


• Canister compressed gas testing will be performed after concept is proven

Financial Analysis


05002 Micro-Turbine III Project

Component Description Price per Qty Line PriceHousing Turbine $96.00 1 2 $192.00

Nylon rod $5.97 foot 1 $5.97machining $10.00 1 1 $10.00fittings $1.00 1 4 $4.00bearings $40.00 10 10 $40.00coupling $14.09 10 10 $14.09Mini Stainless Steel Shaft $3.93 1 1 $3.93O-Ring $4.00 100 100 $4.00Nylon cheese head screw $5.60 100 100 $5.60black nylon 6/6 nut $10.00 100 10 $1.00

Fuel Systems Ni Canisters $20.00 1 2 $40.00Connector $0.62 1 2 $1.24O-Ring $7.50 1 2 $15.00Puncture components $20.00 1 2 $40.00Jets $100.00 50 50 $100.00

Electrical Generator $200.00 1 1 $200.00

Overall Cost $676.83

Final Design


Design Limitations• Propellant cartridge & piercing device weight is

24x higher than the design target weight

• Means of reducing the pressure of the propellant are inefficient

• Finding a generator to meet the high speed requirements


Schedule


Questions?


R I T 05002 Micro Turbine III Senior Design

Documents

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