Initial Questions

Version 10 (Aaron Harper, 05/25/2015 12:52 pm)

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h1. Yavin Thruster Initial Questions v0.1
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h2. Project Background Questions
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h3. BQ1. Why are we making this?
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*BA1*. To create an educational project which combines both propulsion design and testing.  In combination with the Shepard Test Stand technology yields a full turnkey package.
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h3. BQ2. Who is this for?
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*BA2.* Undergraduate aerospace and high level high school students and Mach30 Volunteers.
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h3. BQ3. How will this be used?
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*BA3*. Demonstrate fundamentals of propulsion systems design and testing of a cold gas thruster to include thrust, specific impulse, expansion ratio, chamber pressure, throat area, and controls.
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h3. BQ4. Who's going to build this?
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*BA4.*  Mach30 volunteers,undergraduate aerospace and high level high school students with instructor involvement. Unit will be able to be built with commonly available components and 3D printed parts.
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h2. Technical Requirement Questions
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h3. TQ1a. What features does it need to have (now)?
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*TA1a.* _The project needs to:_
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* The thruster components from expansion chamber to nozzle are modular to allow experimentation and projects to be tested using the same hardware and parameters.
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* Includes a set of sample CAD models for modification (templates)
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* Gas flow must include a tank of fixed volume, pressure gauge, electrically actuated valve, and timing circuit to make comparison of designs possible.
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* Must be operable indoors
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* Control system must be integrated with test stand controls to synchronize operation with testing.
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h3. TQ1b. What features does it need to have (later)?
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*TA1b.* _In the future, the project (or related projects) may need to:_
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* Variable gas flow for throttling
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* Variable time valve operation for pulse width modulation and flow characteristics.
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* Demonstrate ideal expansion, under- and overexpansion characteristics.  This may require flow visualization capability (schlieren and/or CO2 vapor)
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h3. TQ2. What are the legacy requirements?
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*TA2.* _To maintain compatibility with other projects, the system should:_
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* Adaptable to Shepard Test Stand with minimum modifications (ideally just swapping the motor mount at first)
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h2. Project Requirement Questions
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h3. PQ1. How many do we want to make?
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*PA1.* Since this is an easily constructed device with a strong educational component, this should be offered as a kit and would ideally see adoption into the curricula of many educational institutions as well as many interested private parties including Mach30 volunteers.
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h3. PQ2. What is the budget?
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*PA2.* _..._
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h3. PQ3. What is the timeline?
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*PA3.* _..._
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h3. PQ4. What waste products will be produced by the manufacture and/or operation of this?
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*PA4.* _..._