SPIRIT of the Koala Project VOLT Conceptual Design Review

1. Thomas Jeffries, Anthony Anglin, Dylan Cooper, Dustin Fishelman, Colin Harkins, Joao Mansur, StarteyaPais, Andrew Trujillo 10/2/2012 SPIRIT of the KoalaProject VOLTConceptual Design Review

2. Mission Overview • Send a BalloonSat to an altitude near 30 kilometers • Try generating power from the angular velocity of the BalloonSat • Objectives- • Be ready to launch on December 1st, 2012 • Record pictures and video of the entire flight • Measure variables of the surrounding environment • Confirm the feasibility of wind power on BalloonSats • Will contribute to our understanding of how we can make power systems on BalloonSat’s in the future • Power is often the downfall of many experiments operating in conditions similar to ours

3. Mission Overview Cont. • Contribute to the length of experiments we can perform in the upper atmosphere • Over the course of the flight we expect to see a large difference in the amount of power generated over altitude • We also expect to find that the initial turbulence of the balloon after takeoff will decrease over time • We plan to maximize the amount of energy that can be generated throughout the troposphere • By comparing our data to how much was consumed during flight, we can discover how feasible it is to power a BalloonSatwith angular velocity • If successful could be used in subsequent flights of balloons with different designs to supply a longer lasting source of power

4. Design • Structure: • Foam core to create the outer cube, as well as all interior divisions needed • Foam core will be used to support the copper wire coils used in the experimental generator • Tape, Velcro, and glue will be used to bind the structure together and interior components • Will be attached to the flight string through a PVC pipe through the center cube • Experimental Power Generation: • Ceramic bearings will attach the PVC pipe, around the string, to the BalloonSat • Allow it to rotate independently of the rope • Attached to the PVC pipe on the inside will be magnets • The magnet poles will be perpendicular to the length of the tube • Copper wire will be coiled parallel to the length of the tube • These coils will connect to a voltage sensor to measure current produced

5. Design Cont. • Environmental Sensing: • Measure both the internal and external temperature of the Sat using thermometers • Also use a three-axis accelerometer to measure the movement throughout its journey • A pressure sensor will be used to track the pressure during flight and a humidity sensor to track humidity levels • All sensors will interface into an Arduino Uno and will be recorded on a 2GB Micro-SD card • An active heater system will be used to maintain a temperature above -10 degrees Celsius inside • Imaging: • Canon A570IS Digital Camera will be used to capture lower quality images • A GOPRO HERO HD video camera will be used to capture high definition video during the flight • Images will be recorded on 32G Micro-SD card

6. Design Cont. • Testing: • Tests will include drop tests, cooler tests, subsystems tests, functional tests, whip tests, and mission simulation tests • Drop tests with mass models will allow us to determine the structural integrity during impacts • Whip tests allow us to test structural integrity at speeds over Mach 1 • Cooler test using dry ice allow us to test in a subzero environment • Subsystems will be tested individually to identify errors • Special Features: • Propeller Design on the exterior of our box to enhance the angular velocity during ascent • Data: • Recorded by the sensors onto a 2G Micro-SD card during flight • During the drop and whip tests data will be obtained visually • All other tests data will be obtained either by ringing with a voltmeter or by connected to our computers

7. Block Diagram

8. Drawings

9. Budget • Weight: • Cost List (Out of $250): • 5 x 10 x 4 mm Ceramic Ball Bearings (1) – $19.95 Vxb.com • Solid Copper wire 100ft (1) – $18.00 – 34.8 grams Electricalwire.biz • 1 x ½ x ½ in Neodymium Magnets (2) - $9.99 Apexmagnets.com • Current Sensor (1) - $10.00 Sparkfun.com • Voltage Sensor (1) - $.50 Sparkfun.com • 1 lb Dry Ice (10) - $20.00 King Soopers • 9v Batteries (12) - $25.00 Costco/Sam’s Club

10. Schedule • September 28th – Turn in proposal (4:00 pm) • September 30th - Team Meeting • October 2nd – CoDR Presentations • October 3rd – Team Meeting • October 4th – Order all the hardware • October 5th – Authority to Proceed October 7th – Finalize design + Team meeting • October 10th – Team meeting • October 13th – Acquired all hardware • October 14th – Begin construction + Team meeting • October 17th – Team meeting • October 18th – Design Document Rev A/B (7:00 am) + pCDR Slides Due (7:00 am) • October 21st – Team meeting • October 28th – Testing Day + Team meeting • November 4th – Finalize programming + Team meeting • November 7th – Team meeting • November 13th – In-Class demo • November 14th – Team meeting • November 16th – Design Document Rev C • November 18th – Team meeting • November 25th – Finalize satellite and prep for launch • November 27th – LRR Slides Due (7:00 am) • November 28th – FINAL Team meeting • November 30th – Final Weigh-in • December 1st – Launch day • December 8th – ITLL Design Expo + Design Document Rev D Due + Extra Credit Video • December 11th – Final Presentations and Reports

11. Team Members Name: Major: Task: Andrew Truillo Astrophysics Budget Manager StarteyaPais Aerospace Engineering Joao Mansur Aerospace Engineering Solderer Thomas Jeffries Aerospace Engineering Team Leader Colin Harkins Open Option Engineering Dustin Fishelman Aerospace Engineering Scientist Dylan Cooper Aerospace Engineering Programmer Anthony Anglin Aerospace Engineering Coordinator