Daniel Sayle, Patrick Byrne, Sarah Kemp, Anne Mcleland, Katie Thompson 10/5/2010

TEAM MUNCHIESCRITICAL DESIGN REVIEW

Fall 2010 Rev B

MISSION OVERVIEW

- The purpose of the balloon satellite Astraios is to test whether or not red algae can survive the harsh environment of near space at an altitude of approximately 30,500 meters or 100,000 feet.

- Possibility that our research can be applied to other extreme environments such as high mountains, the polar regions of the Earth, and the environment in which the first extra terrestrial settlements will be created when the terra-forming of Mars takes place.

OVERVIEW, CTD.

• The Results of this Mission, depending on whether the samples survive the flight, can provide plausible doubt to the possibility of marine life forms in high pressure environments or even extraterrestrial ones.

• Due to algal blooms supplying the majority of breathable Oxygen to life under water, the survivability of our samples will provide insight to the possibility of oxygen breathing marine life (unicellular or not) in other atmospheres or hostile environments.

HYPOTHESIS

• Due to the rarity of ice specialized algae, our group is using a very common strain of red algae for the flight. This algae is relatively self-sustaining, and able to live without high amounts of sunlight or warm temperatures. Therefore, our samples are most likely to survive in a standard temperature and pressure environment.

• Once pressure and temperature begin to decrease as elevation increases, we expect the chances of survival of the algae will decrease exponentially, but are not made impossible.

• The most likely sample to survive the flight will be the sealed and heated one. However, there is reason to speculate the samples prone to pressure changes may still be able to complete photosynthesis functions.

REQUIREMENTS FLOW DOWNLevel Requirement Detail

   0

Mission Objectives

A Astraios shall reach an altitude of approximately 30,500 m on launch day, November 6, 2010, weighing no more than 850g, and costing less than $300

B Astraios will carry 4 algae samples in order to study the effects of a near space environment upon samples under varying conditions

C The algae samples will be successfully recovered and then analyzed

D The results will allow Team Munchies to draw conclusions about algae’s usefulness in a near space environment.

CONTINUED           1

A.1 Astraios shall be fully assembled and tested by November 3, 2010 and then turned in to Chris Koehler on November 5, 2010 ready to fly.

A.2 Astraios will we weighed following assembly to ensure it is within the weight limit. Reconfiguration will occur if necessary

A.3 Budget Manager Sarah Kemp will ensure that the monetary budget is adhered to

B.1 Team Munchies will obtain algae from Gulf Coast Ecosystems

B.2 Astraios’s design will quarantine each algae sample and allow for open air exposure for the cold samples

B.3 The samples will be prepared prior to launch, two in sealed bags and two in vented bags

C.1 Extensive testing will occur to ensure that the design adequately quarantines and protects the samples

CONTINUED

C.2 Experiment testing will take place before launch to provide control samples with which to compare the resulting flight samples

C.3 Ground samples will be present on launch day for comparison with the pressurized flight samples and redundancy samples will be on board.

C.4 The recovered flight samples will be examined visually in a microscope to determine condition

D.1 The condition of the flight samples will be compared with the controls established during testing and from ground samples

D.2 Temperature data and pressure data will be used to understand under what conditions and at which approximate altitude the samples died if they do die.

DESIGN• Science

• Algae Samples- 2 Cold, 2 Warm, 2 Sealed, 2 Not Sealed (Being ordered today…should take a week to arrive)

• Sealed bags are pressurized at sea level, thus testing whether pressure or temperature will kill the algae sample

• The samples in the cold will be in cube offshoot(s) on top of main cube

• There will also be an additional 4 redundancy samples on board

• Ground samples will be tested at STP simultaneously for control group

• Two HOBOs (in possession)- 1 for temperature and humidity, and 1 for pressure

MISSION REQUIREMENTS• Extensive testing will be done to ensure that the satellite can survive flight and landing and the

flight string interface will be constructed with plastic tubing, washers, and paperclips.

• The heater and insulation will be utilized to maintain internal temperature. Prior to turn in, the team will weigh the satellite and modify design if it exceeds 850 grams.

• Ascent and descent rates will be determined using the ultimate altitude reached by the balloon satellite and the duration of ascent and descent as determined by temperature and pressure data.

• All required hardware will be accommodated into the design.

• The outside of the satellite will bear contact information and a US flag.

• Units will be converted to metric.

• Transportation to launch has been planned.

• The team will follow its outlined safety procedures and return all hardware in working condition.

• The budget manager will be diligent when keeping track of expenses and receipts and hardware will be ordered with Chris Koehler’s CU MasterCard.

MASS AND MONEY BUDGETItem Place of Purchase Cost Weight

Algae Gulf Coast Ecosystems $65 120gCamera Provided $0 220gHeater Provided $0 100gHOBO Provided $0 30g

Pressure Sensor (HOBO)

Space Grant $0 20g

Additional Temp. Probe Space Grant $0 ~12g

Battery for HOBO Allied Electronics $10.24 10gPlastic Bags Target $5 (4)-~5gPlastic Tubing Provided $0 ~12g

Washers Provided $0 ~50gPaperclips Provided $0 ~2gTest String Provided $0 N/AFoam core Provided $0 ~50g

Hot Glue and Glue Provided $0 ~20gAluminum Tape Provided $0 ~20g

Insulation Provided $0 ~50gBatteries (6-9V, 2-AA) Target $20 (3-9V)-108g

Dry Ice Safeway $20 N/AStyrofoam Cooler Owned $0 N/AWeather Station  Owned $0 N/A

  Total: $120.24 Total: 839g

Date Event

September 7, 2010 (T) Request for Proposals

September 16, 2010 (Th) Conceptual Design Review (proposal/present)

September 23, 2010 (T) [appt.] Authority to Proceed/Order Hardware

September 29, 2010 (W) Team Meeting

October 4, 2010 (M) Team Meeting

October 5, 2010 (T) DD Rev A/B & CDR slides due

October 5, 2010 (T) Order algae and battery

October 6, 2010 (W) Team Meeting- Construction

October 10, 2010 (Sun) Team Meeting- Construction/Structure Testing

October 12, 2010 (T) HW 5 due

October 13, 2010 (W) Team Meeting- Construction/Structure Testing

October 17, 2010 (Sun) Team Meeting- Testing: Payload and Function

October 20, 2010 (W) Team Meeting- Testing: Function and Cooler

October 24, 2010 (Sun) Team Meeting- Testing: Payload and Revision

October 25, 2010 (M) Finish Testing

October 26, 2010 (T) Pre-Launch Inspection with Hardware (exterior testing must be complete)

October 27, 2010 (W) Loose Ends/ DD Rev C & Slides

October 28, 2010 (Th) Mission Simulation(All testing complete)

October 31, 2010 (Sun) Loose Ends/ DD Rev C & Slides

November 2, 2010 (T) DD Rev C & LRR due (present)

November 3, 2010 (W) Finalize Balloon Saat

November 5, 2010 (F) [appt.] Final weigh in and TURN IN

November 6, 2010 (Sat) LAUNCH

November 9, 2010 (T) Have Raw Data

November 10, 2010 (W) Team Meeting-Presentation

November 14, 2010 (Sun) Team Meeting-Presentation

November 17, 2010 (W) Team Meeting-Presentation

November 28, 2010 (Sun) Team Meeting-Presentation

November 30, 2010 (T) Final Presentation and Report due

December 4, 2010 (Sat) Design Expo & DD Rev D due

December 7, 2010 (T) Hardware TURN IN

FUNCTIONAL DESIGN DOC.

3D MODELS

3D MODELS

TEST PLAN

• No testing has begun yet

• Payload testing-

• Whip Test, Drop Test, Cooler Test, Subsystems Test, Camera Test

• Algae Testing-

• Placing it in a cooler of dry ice to test how it will survive

• Deliberately kill sample of algae to hypothesize what its appearance will be once it is dead, what temperature it died at and how long it can go with out water.

• We will also study it with a microscope to familiarize ourselves with its aspects while alive

TESTING SCHEDULE

Date Event

October 10, 2010 (Sun) Structure Testing

October 13, 2010 (W) Structure Testing

October 17, 2010 (Sun) Testing: Payload and Function

October 20, 2010 (W) Testing: Function and Cooler

October 24, 2010 (Sun) Testing: Payload and Revision

October 25, 2010 (M) Finish Testing

EXPECTED RESULTS

• We expect that the algae sample that is pressurized and kept relatively warm will survive the extreme conditions best. The sample that is unpressurized and exposed to the extreme cold conditions is expected to fare the worst. Algae samples that did not survive are expected to exhibit a brown color and a lack of cellular movement.

TEAM ORGANIZATION CHART

Task Lead Secondary

Management Daniel Sayle

Science Patrick Byrne Daniel Sayle

Design Daniel Sayle Patrick Byrne

Budget Sarah Kemp Daniel Sayle

Technical Sarah Kemp Katie Thompson

Construction Katie Thompson Anna McLeland

Testing Katie Thompson Anna McLeland

Documentation Anna McLeland Sarah Kemp

BIGGEST WORRIES

• Air Depletion

• Lack of gases for algae to survive off

• UV Radiation

• Avoiding the mutation and death of the algae

• Temperature

• Extreme temperatures may cause algae to die

• Landing Impact

• Limiting damage to algae samples