02/10/2004By: Strobridge & Sulkoski1 G.U.S.T.E.R. Mechanical Design Project Presentation.

02/10/2004 By: Strobridge & Sulkoski 1

G.U.S.T.E.R.Mechanical Design Project Presentation

02/10/2004 By: Strobridge & Sulkoski 2

Background System used for

educational purpose. A fan is used to provide

airflow for the testing of small wind rotors.

Current system is insufficient & inadequate. Consists of:

Lego Generator & LEDs to measure power output.

The channel tube is a box shape made out of scrap material.

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ProblemDesign & build a wind rotor testing system. Capable of testing wind rotors up to 30 cm in

diameter. Automated, so the user can obtain

measurements of rotor power output to wind speed.

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Solution Hub on generator for blade mounting

Will accept various blades with a standard rod Students will be given standard dowels (for example) to

make their blades with

Controlled wind rotor with variable direction & blade pitch Generator hub assembly will be on a stand that will be

controlled by a motor Blade pitch will either be manually adjustable or

electronically controlled

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Solution Variable wind speed

Controlled by HC08 & anemometer feedback The anemometer will communicate the wind speed to the

user The HC08 will vary the frequency to the fan to change

the speed until the desired wind speed is met Data Acquisition Card

For importing power output & wind speed to computer program Preferably an external card for Plug & Play interface with

various computers Computer program with user interface

Lets user control the variables of the system & gather the preferred data

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System Overview

Anemometer

Tubeaxial Fan

HC08

Generator

Wind Rotor

DAC (Data Acquisition Card)

User at PC

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Wind Tunnel Concept

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Transitioning

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Turning Choices

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Turning Choices

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Smooth Radius

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Smooth Radius with Splitter Vane

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Mitered, 90 Degree Elbow

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Choices Transitioning

Square to Round = 30, L = 11.2”, Co = 0.20

Round to Square = 30, L = 11.2”, Co = 1.20

Turning Smooth Radius with Splitter Vane

r = 2’, Cp = 0.05

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Milestones Design for the hub assembly

Optional, seen as a last item of importance by customer

Wind speed Varying the speed of the Tubeaxial Fan’s AC motor Getting the anemometer to talk to the HC08 to set the

speed of the motor Possibility of calibration to cut out the anemometer

Mobility Not requested, unit will have a permanent home

Unit will still be able to be disassembled and reassembled in a different location

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Time Line