Initial Questions

Version 9 (Aaron Harper, 05/25/2015 12:46 pm)

1 1 J. Simmons
h1. Yavin Thruster Initial Questions v0.1
2 1 J. Simmons
3 1 J. Simmons
{{toc}}
4 1 J. Simmons
5 1 J. Simmons
h2. Project Background Questions
6 1 J. Simmons
7 1 J. Simmons
h3. BQ1. Why are we making this?
8 1 J. Simmons
9 3 Aaron Harper
*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.
10 1 J. Simmons
11 1 J. Simmons
h3. BQ2. Who is this for?
12 1 J. Simmons
13 3 Aaron Harper
*BA2.* Undergraduate aerospace and high level high school students and Mach30 Volunteers.
14 1 J. Simmons
15 1 J. Simmons
h3. BQ3. How will this be used?
16 1 J. Simmons
17 4 Aaron Harper
*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.
18 1 J. Simmons
19 1 J. Simmons
h3. BQ4. Who's going to build this?
20 1 J. Simmons
21 6 Aaron Harper
*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.
22 1 J. Simmons
23 1 J. Simmons
h2. Technical Requirement Questions
24 1 J. Simmons
25 1 J. Simmons
h3. TQ1a. What features does it need to have (now)?
26 1 J. Simmons
27 1 J. Simmons
*TA1a.* _The project needs to:_
28 1 J. Simmons
29 7 Aaron Harper
* The thruster components from expansion chamber to nozzle are modular to allow experimentation and projects to be tested using the same hardware and parameters.
30 7 Aaron Harper
* Includes a set of sample CAD models for modification (templates)
31 7 Aaron Harper
* Gas flow must include a tank of fixed volume, pressure gauge, electrically actuated valve, and timing circuit to make comparison of designs possible.
32 7 Aaron Harper
* Must be operable indoors
33 8 J. Simmons
* Control system must be integrated with test stand controls to synchronize operation with testing.
34 9 Aaron Harper
* Adaptable to Shepard Test Stand with minimum modifications (ideally just swapping the motor mount at first)
35 1 J. Simmons
36 1 J. Simmons
h3. TQ1b. What features does it need to have (later)?
37 1 J. Simmons
38 1 J. Simmons
*TA1b.* _In the future, the project (or related projects) may need to:_
39 1 J. Simmons
40 7 Aaron Harper
* Variable gas flow for throttling
41 7 Aaron Harper
* Variable time valve operation for pulse width modulation and flow characteristics.
42 7 Aaron Harper
* Demonstrate ideal expansion, under- and overexpansion characteristics.  This may require flow visualization capability (schlieren and/or CO2 vapor)
43 1 J. Simmons
44 1 J. Simmons
h3. TQ2. What are the legacy requirements?
45 1 J. Simmons
46 1 J. Simmons
*TA2.* _To maintain compatibility with other projects, the system should:_
47 1 J. Simmons
48 1 J. Simmons
* _..._
49 1 J. Simmons
50 1 J. Simmons
h2. Project Requirement Questions
51 1 J. Simmons
52 1 J. Simmons
h3. PQ1. How many do we want to make?
53 1 J. Simmons
54 1 J. Simmons
*PA1.* _..._
55 1 J. Simmons
56 1 J. Simmons
h3. PQ2. What is the budget?
57 1 J. Simmons
58 1 J. Simmons
*PA2.* _..._
59 1 J. Simmons
60 1 J. Simmons
h3. PQ3. What is the timeline?
61 1 J. Simmons
62 1 J. Simmons
*PA3.* _..._
63 1 J. Simmons
64 1 J. Simmons
h3. PQ4. What waste products will be produced by the manufacture and/or operation of this?
65 1 J. Simmons
66 1 J. Simmons
*PA4.* _..._