Sail Away

Liz Burd

TISP AustraliaBrisbane, Queensland1 September 2012

Naval architecture, boats, sails and the process Naval architecture, boats, sails and the process of designing to specificationsof designing to specifications

Sail Away - Objectives

Learn about marine engineering and sailing principles.Learn about engineering product planning and design.Learn about meeting the needs of society.Learn about teamwork and working in groups.

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Students will learn:

Principles of watercraft engineeringDesign process and problem solving techniquesDesign to meet specificationsTeamwork

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Various Hull Designs

Alignment to the Australian Curriculum: Science

4 See pages 3-5 of lesson plan for details

Science UnderstandingYear 2 Year 4 Year 7 Year 10

ACSSU033 ACSSU076 ACSSU117 ACSSU229Science as a Human Endeavour

Year 2 Year 4 Year 7 Year 10ACSHE034 ACSHE061 ACSHE224 ACSHE192 ACSHE195

Science Inquiry SkillsYear 2 Year 4 Year 7 Year 10

ACSIS037 ACSIS214 ACSIS064 ACSIS216 ACSIS124 ACSIS130 ACSIS198 ACSIS204ACSIS038 ACSIS041 ACSIS065 ACSIS069 ACSIS125 ACSIS131 ACSIS199 ACSIS205ACSIS039 ACSIS042 ACSIS066 ACSIS071 ACSIS126 ACSIS133 ACSIS200 ACSIS206ACSIS040       ACSIS129   ACSIS203 ACSIS208

Materials

2 plastic bottlesPaperCardboardTapeStringAluminum FoilFold Back ClipsPlastic wrapToothpicksPaddle Pop SticksRubber bands

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The Challenge

Design a sailboat that…

– Has the smallest sail area possible,but still

– Travels the length of the trough in less than 3 seconds, and

– Support a payload of 120g

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Goal 2: Travel Time < 3 seconds.             (without sinking!)

Goal 1: Smallest Sail Area Possible.

Goal 3: Carry weight           (washers).

TEST Procedure

Score

Final score based on sail area:

Score = 100 – ( Area / 10 )

Area measured in cm2

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Working With Wind Energy

Liz Burd

TISP AustraliaBrisbane, Queensland

2 September 2012

Wind Energy, turbines, and the process of Wind Energy, turbines, and the process of designing to specificationsdesigning to specifications

Learning Objectives

Learn about wind energy conversionDesign a wind turbineConstruct the wind turbineTest the wind turbineEvaluate Performance

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Alignment to the Australian Curriculum: Science

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Science UnderstandingYear 6 Year 10

ACSSU219 ACSSU190Science as a Human Endeavour

Year 6 Year 10ACSHE098 ACSHE100 ACSHE195 ACSHE230

Science Inquiry SkillsYear 6 Year 10

ACSIS232 ACSIS107 ACSIS198 ACSIS203ACSIS103 ACSIS221 ACSIS199 ACSIS205ACSIS104 ACSIS108 ACSIS200 ACSIS208ACSIS105 ACSIS110    

See pages 3-4 of lesson plan for details

A Wind Turbine

The wind hits the blades…Shaft leads to a gearbox whose output leads to a generator to make electricityUsually has 2 or 3 blades

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WINDWIND

24 - 25 SEP 2010

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Australia’s Wind ResourcesThe total operating wind capacity in April 2012 was 2480 megawatts. – An increase of an average of 25% a year over the

past decade. Wind energy supplies over 6,800 gigawatt hours of electricity annually - around 2.4 per cent of Australia's overall electricity needs. 59 operating wind farms in Australia, with a total of 1345 operating turbines.– South Australia has the largest installed capacity

with around 49% of the nation’s total wind capacity

04/18/2314 www.cleanenergycouncil.org.au/technologies/wind.html

Many blade designs15

Your Challenge

Design, construct and test your own wind turbine designLift weight – 15 cmas quickly as possibleMaximum 1 minuteNo human interaction!Blowdryer at least30cm away from turbine

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> 1ft, 30cm

Turbine Requirements

Must have a rotor shaft around which to wind up given weightMust be freestanding (no human interaction)Must use only materials provided

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> 1ft, 30cm

Test Procedure

Blowdryer at least 30 cm away from turbineNo human interaction with turbineAttach weight around rotorUp to 1 minute to wind up weight for 15cmRecord time to wind up weight

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> 1ft, 30cm

Materials19

Procedure

Teams of two (2)Develop and sketch your designConstruct initial designPreliminary testModify design, if necessaryFinal test

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Evaluate Your Design

Efficiency of design may depend on– Cost of materials– Speed (rotations per minute)– Power (time to wind weight)

Possible measure of efficiency:– Eff. = (Cost of materials) / (time [sec]

to lift weight)

Are two designs that have the same rotational speed equally as “good”?

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