Team Vision for Detailed Design Phase
- By the end of the term, the team plans to have a fully assembled prototype of the Automated Keg Washer to be used for preliminary testing
- The testing that should be accomplished before second
- Fluid flow testing to determine volume of water, the rate of water draining, and strength testing
- Heating element testing to determine length of time to heat fluid
- Tubing layout testing to determine optimal layout of tubing on the structure to allow for optimal flow and space for solenoids and electrical components
- Justify and order PLC to begin testing during the summer term
- Prototype Keg Washer constructed
- Began testing procedures with the prototype
- Fluid flow testing complete
April 27, 2017:
The document attached here outlines all tasks that have been accomplished to date, the tasks that have been outlined for completion prior to the Detailed Design Review, and other decisions to be made.
The purpose of this document is to provide the customer with a quick update prior to the end of term so that any concerns can be identified with time to address them.
This phase is critical to the success of the project, and must be treated as such. The results of the progress report will be uploaded by end of week.
Prototyping, Engineering Analysis, Simulation
April 16, 2017 : The wooden frame for the prototype was constructed in a team members garage. This will be the structure used while testing fluid flow, heating element and tubing layout.
April 20, 2017 : The construction of the manifold was started. This is the subsystem which will control the flow of fluids, cleaners and sanitizers through the correct containers.
May 4, 2017 : This day was spent assembling the prototype to the point that testing can begin. This involved hoisting up the kegs which will act as the "dirty kegs" and setting up the ones to be used for fluids and sanitizers. The manifolds were attached to the structure and the tubing was connected to the manifolds, tanks and pump so that fluid testing can begin.
Drawings, Schematics, Flow Charts, Simulations
The following documents contain the electrical drawings for the Automated Keg Washer. For the best results, please print on 11" x 17" paper.
Bill of Material (BOM)
The anticipated BOM as of April 26th was broken down into multiple documents reflecting common parts or subsystems. These are located below:
These documents include each part, quantity, the cost and where it is purchased/manufactured. At the end of each row, the team will continue to update the purchase status of the part. This document will be updated continually throughout the phases. The most recent version on each page will reflect the status at the end of the phase.
Additionally, the team has used these bills of materials to gauge the total cost of the project, which is outlined here.
Test Plans and Results
May 9, 2017 : No testing has taken place at this point in the project, but the first testing is planned to take place May 11, 2017. This testing is outlined in the Test Plan Document in the Test Strategy section for Fluid Flow Testing. This is anticipated to be completed before the end of term.
May 11, 2017 :
The team spent a few hours today preparing the prototype for testing and gathering data from these test trials. The testing performed was for fluid flow. The information gained included flow rate in gallons per minute with and without the spears, the height of water from the tubing with one open vs. two, and the flow through the discharge on the coupler.
- The Fluid Flow testing document can be accessed here.
Height of Water:
- Through a few trial runs of pumping water through the tubing, the team determined, with one tube open the height of the water maxes out at 2 inches, while with two tubes open the height maxes out at 1 inch.
- Through multiple test trials, the flow through the discharge on the coupler was found to be 3.75 gallons per minute. This was tested with the same method as fluid flow.
- Testing Setup
Design and Flowcharts
Program Block Diagram
The PDF of the document can be accessed here.
The PDF of the document can be accessed here.
No additional risks have been identified in this phase that have not been outlined previously. With that being said, a few have been encountered during this phase and some are anticipated to be soon. These risks are highlighted in the Risk Analysis Document and are as follows:
Time Constraint -
The second term of Multidisciplinary Senior Design has been shortened by one week. This gives the team a larger time constraint than anticipated. The Project Plan had been designed with 4 weeks of slack meaning this only takes 25% of our slack away. To make up for this, the team will put in a weeks worth of work in during the Summer intersession.
Testing Constraint -
The team will begin testing May 11th, 2017. As of right now, all of the materials required are accessible. The team anticipates that there may be some difficulty with resources when testing the final structure in the Brinkman Lab. This will be addressed as soon as the prototype is moved to its new location.
This is being addressed currently. The budget has been accepted as too little for the work that needs to be complete. The current status is that the budget will be increased and the team anticipates a final limit at the end of this phase.
Incorrect Components -
This could be encountered now that the team is purchasing parts. To mitigate/minimize this, all parts are being carefully picked and double checked before the purchase.
Calculation Errors -
Through testing all calculations will be checked to determine whether they were executed properly. The status of these will be updated as they are tested.
Engineering Standards -
These have been addressed using the proper information and documentation to identify standards. The teams standards document can be accessed here.
Design Review Materials
Plans for next phase
The following chart represents the progress that has been made on the project in the first term of Multidisciplinary Senior Design. The expectations of next term have been laid out as well. The pdf version of the document can be accessed here. It is important to note that the second term will be shortened by one week. This means that the team will have less room for error with the time constraint.