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Team BIOHAZARD Presents: Project CRUENTO
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CRUENTO: Latin – to make bloody; stain with blood
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Team Members Team Leader: Chris Pearson, Electrical Engineering Alicia Harris, Aerospace Engineering Andrew Brewer, Aerospace Engineering Greg Juarez, Aerospace Engineering Curtis Miller, Aerospace Engineering Shaun Valdez, Aerospace Engineering
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Overview & Mission Statement Mission Statement: To ascertain how blood reacts to a near space environment. To Test: What are the conditions under which blood boils in a near space environment? What if there was an accidental tear or rupture in a pressure suit around 85,000ft. (~26,000m)? What are the differences between slow and abrupt releases of pressure on blood at that altitude?
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Hardware Required for Experimentation Basic Stamp BS2-IC Servo-Controlled Valves Blood Containment Equipment 1 Digital Camera Internal Heating System Pressure Sensor Plastic Tubing Misc. Electrical Components (LEDs, Switches, Wires, Timing Circuits, Transistors, Capacitors, etc.)
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Satellite Design
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Schematics BatterySwitchHeaters Blood ValvesCamera RotationBasic StampBlood Camera HOBOCamera External Temperature
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Design Photographs Satellite and crude Dome Prototype
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Design Photographs (cont.) How the camera flash will illuminate the blood inside the satellite (not accurate placement of vial)
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Design Photographs (cont.) How the digital camera will see out (image out of crude prototype)
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Construction Accounting: Chris and Curtis Foam Cutting Shell Construction: Curtis Internal Structure: Shaun Hardware Integration: Chris Blood Acquirement and Care: Shaun HOBO: Alicia Programmer: Greg and Chris Circuit Building: Chris and Greg Heating and Insulation: Andrew Slide Show: Alicia
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Testing Drop Test Drag Test Whip Test Cooler Test Subsystems Test Functional Test Mission Simulation
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Special Features Observation Dome Blood Testing Equipment Pressure Sensor
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Budget EquipmentWeight (if in sat.) CostAmountTotal cost Basic stamp9.1 grams$501 Foam core65.5 gramsFree1 Hobo data logger 29 gramsFree1 Camera 1116.3 gramsFree1 Camera 2100.2 grams$571$47 Servos28.8 grams$223$46 Heater12.5 gramsFree1 Insulation30 gramsFree1 Batteries101.4 gramsFree3 Misc. Electrical components 15 grams$101 unit$10 External temperature Cable 37 gramsFree1
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Budget (cont.) Plastic tubing12.3 grams$7.023 Valves10 grams$5.003 Blood removalN/A2 or 3 Aluminum Tape10 gramsFree1 unitFree Adhesive15 gramsFree1 unitFree Silica gel packet6 grams$13 Hand warmers43 gramsFree1 Blood41 gramsFree Film10.5 grams$51 Pressure Sensor80 grams$1001 Total772.6 grams$271.02 EquipmentWeight (if in sat.) CostAmountTotal cost
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Schedule Sunday, September 24, 2006 – The design of the balloon sat will be finalized. Thursday, October 5, 2006 – All Hardware ordered purchased by this date. Monday, October 9, 2006 - Have Rev A completed. Thursday, October 12, 2006 – Prototyping of the structure will be completed. Saturday, October 14, 2006 - Initial Basic stamp programming. Sunday, October 15, 2006 - Drop Test and Drag test with weight in structure. Tuesday, October 17, 2006 - Have Rev B completed. Thursday, October 19, 2006 - Blood containment and valves built and operational. Tuesday, October 24, 2006 - Both cameras installed and operational. Wednesday, October 25, 2006 - Finalized Basic stamp programming completed. Thursday, October 26, 2006 – Have balloon sat flight ready and starting tests. Saturday, October 28, 2006 – Whip Test and Cold test with all systems present and operating. Thursday, November 9, 2006 - Have Rev C completed. Have blood supply. Saturday, November 11, 2006 – Have all systems working and debugged. Flight-ready. Fly BalloonSat. Wednesday, November 15, 2006 - Start analysis of flight data. Wednesday, November 22, 2006 - Have analysis of flight data completed. Thursday, November 30, 2006 - Have Rev D completed.
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Expected Results A liquid boils when the barometric pressure in the outside environment equals the vapor pressure of the liquid. If we can keep the blood near body temperature, then the atmospheric pressure at which this phenomenon occurs should be around 17.5mmHg. The Earth’s atmosphere reaches this pressure at about 26km. We are hoping to keep the heater close enough to the blood so that its temperature will be at or above 37°C. This way, we can see if the predicted altitude is accurate to calculation. We will find at what altitude this occurs by comparing data from our pressure sensor and the photographs we will obtain during the flight.
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