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Revision as of 21:01, 1 May 2016
Abstract
The purpose of this project is to develop a demonstration device that displays the principles of how objects move in a vacuum. The idea is to build a Vacuum Bazooka that will shut a ball into the air due to the difference in pressures between the outside and the inside of the Bazooka. Ultimately our goal for the vacuum demonstration device is to provide an entertaining hands on demonstration yet also provide an educational experience to the students and staff of Zane Middle School.
Background
The spring 2016 Engineering 215 design class from Humboldt State University was working together with Zane Middle School from Eureka. The purpose of this association was to give the opportunity to students from the Design class an opportunity to learn the basics of working in teams and also to get experience in real life projects. J.AT.O the name of this team was in charge of developing a demonstration of how objects move in a vacuum chamber and its effects in ordinary objects. By developing this projects, J.A.T.O team will be able to show Zane students a quick view to the science world at the same tame the will be having fun.
Problem statement and criteria
Zane Middle School is in need of a demonstrational instrument that will display the properties of a vacuum to students. The criteria of this project were safety, time constraints, cost, material availability, and overall effectiveness of solution.
Description of final project
The final project is a fully operational vacuum bazooka. The vacuum bazooka is capable of shooting cylindrical projectiles that fill the volume of the PVC pipe. The cylindrical projectiles must fill the volume of the PVC pipe as this increases the suction force created from the vacuum, which in turn launches the projectile further. In order to make our vacuum we utilize a Shop-Vac 5986000 5-Gallon that has a peak of 4.5 HP. The shop vacuum is attached to a tee connector that is attached to the barrel. The length of our PVC pipe which composes our barrel is 5 ft.
Costs
| Image | Description | Quantity for Whole Project | Price per Quantity | Price for Whole Project | Place Purchased |
|---|---|---|---|---|---|
 |
PVC Pipe 1-1/2" | 5 ft. | $7.00 per 10ft. | $3.50 | Ace Hardware |
 |
Vacuum Pump | 1 | $70.68 | $70.68 | Amazon.com |
 |
Vacuum Accessories | 3 | Included with Vacuum Pump | $0.00 | Amazon.com |
 |
PVC Pipe Glue | 1 | $6.99 | $6.99 | Ace Hardware |
 |
Coupling PVC 3/4" x 1/2" SxS | 1 | $0.99 | $0.99 | Ace Hardware |
 |
CM Hose Adapter 2-1/2" x 1-1/4" | 1 | $7.99 | $7.99 | Ace Hardware |
 |
Nipple SCH80 PVC 3/4" x 3" | 1 | $1.99 | $1.99 | Ace Hardware |
 |
Tee San PVC Dwv | 1 | $1.99 | $1.99 | Ace Hardware |
 |
Red Spray Paint | 1 | $5.99 | $5.99 | Ace Hardware |
| Electrical Tape | 1 | Donated | $0.00 | Omar Maciel | |
| Total Cost | $... | ||||
Testing Results
This section will be improved upon after completion of the vacuum bazooka. The "Testing Results" section will include a discussion of how the vacuum bazooka performs after it has been initially constructed. This will include a speed analysis of the projectile that is fired to determine if it's potentially too fast or unsafe for a demonstration. Information on how the vacuum bazooka performs during the demonstration for the students at Zane Middle School will also be included.
How to build
| Step | Description | Image |
|---|---|---|
| 1 | Cut the PVC pipe so it is 6ft in length. | No image yet |
| 2 | Apply PVC Glue Primer (purple can) to the inside of one end of the 'T' bracket. | No image yet |
| 3 | After 1 minute of letting the primer set, then add the glue (gold can) directly over the primer. | No image yet |
| 4 | Immediately following step 3, twist on the side that was just glued onto one end of the long PCV Pipe. | No image yet |
| 5 | Clean off the excess glue and wait 15 minutes for glue to set. | No image yet |
| 6 | Use sandpaper to clean off and rough up the surface of the PVC Pipe. | No image yet |
| 7 | Begin spray painting entire PVC Pipe. | No image yet |
| 8 | After letting the paint dry for 2 hours, apply another even coat around the pipe. | No image yet |
| 9 | Optional: For longer lasting paint, apply layer of clear coat spray when the 2nd coat has fully dried. | No image yet |
| 10 | No image yet | |
| 11 | No image yet | |
| 12 | No image yet | |
| 13 | No image yet | |
| 14 | No image yet | |
| 15 | No image yet | |
| 16 | No image yet | |
| 17 | No image yet | |
| 18 | No image yet |
References
“Atmospheric Pressure.” (n.d.). Atmospheric Pressure, Georgia State University, <http://hyperphysics.phy-astr.gsu.edu/hbase/pman.html> (Feb. 24, 2016).
Berto, F. J. (2015). “Hydrostatic Tank Gauges Accurately Measure Mass, Volume, and Level.” Oil and Gas Journal, Oil and Gas Journal, <http://www.ogj.com/articles/print/volume-88/issue-20/in-this-issue/refining/hydrostatic-tank-gauges-accurately-measure-mass-volume-and-level.html> (Feb. 25, 2016).
“Brian Cox performs Galileo's Experiment in Vacuum.” (n.d.). Brian Cox performs Galileo's Experiment in Vacuum, <http://thesciencegeek.com/?q=node/78> (Feb. 25, 2016).
“Dropping Object's in the World's Largest Vacuum Chamber.” (12ADAD). Wired, <http://www.wired.com/2014/11/dropping-objects-worlds-largest-vacuum-chamber/> (Feb. 25, 2016).
Engelmann, G., Genet, M., and Wahl, W. (1987). “Vacuum Chambers in Composite Material.” Journal of Vacuum Science and Technology A, 5. (Scholarly Journal)
Gura, J. (2011). “Fischer Technical Company.” : Top 5 Experiments Using a High Vacuum Pump, Fisher Technical, <http://fischertechnical.blogspot.com/2011/05/top-5-experiments-using-high-vacuum.html> (Feb. 25, 2016).
Herring, D. (n.d.). “High and Ultra-High Vacuum .” Vac Aero, Vac Aero International INC., <http://vacaero.com/information-resources/the-heat-treat-doctor/1167-high-and-ultra-high-vacuum.html> (Feb. 25, 2016).
“Introduction to Vacuum Gauges.” (n.d.). <https://www3.nd.edu/~nsl/lectures/urls/introduction_to_vacuum_gauges.pdf> (Feb. 25, 2016).
“Mean Free Path.” (n.d.). Mean Free Path, Georgia State University, <http://hyperphysics.phy-astr.gsu.edu/hbase/kinetic/menfre.html> (Feb. 24, 2016).
“Physical Equilibria.” (n.d.). <http://ch302.cm.utexas.edu/physeq/physical/physical-all.php> (Feb. 25, 2016).
“Q & A: Creating a Vacuum.” (n.d.). Q & A: Creating a Vacuum, University of Illinois, <https://van.physics.illinois.edu/qa/listing.php?id=896> (Feb. 25, 2016)
Umrath, walter. (n.d.). Fundamentals of Vacuum Technology. (Book Source)
Weissler, G. L., and Carlson, R. W. (1979). Vacuum physics and technology. Academic Press, New York.
(Scholarly Journal)