Overview of Status of Analysis, Design, Fabrication, Tests, etc.
Water loss testing will be based on temperature (solar loading - heat lamps), humidity (air-conditioning in closed room), and wind (heat fan)
Still need to finalize water loss test bed (controlled)
We have done water loss testing via sand outside EBU 2 and via Arduino controlled environment
Accomplishments from Previous Week
We did water loss through sand and through controlled environment (Arduino/ heat gun)
We got controlled test to work via Arduino coding and hardware setup (solid-state relay, resistor, heat gun, humidity/temperature sensor)
Goals for Next Week (list names after each item). Use specific and measurable objectives.
Albert/Jordan: Get website updated especially the Gantt Chart
Albert: Document closely any small or big comments or suggestions made by instructor or lead sponsor during meetings
Jordan: look over Arduino Uno programming and setup for controlling the heat gun
Dylan: Keep in contact with Todor for any possible issues and progress on testing
Everyone: Come up with better ‘controlled’ water loss test bed ideals or tweaks to current one
Sponsor Comments from Last Meeting and Actions Taken to Address these Comments
What is our current tested for water loss and what’s our progress on it?
We did testing of old and new bags through sand and controlled test bed environment
We constructed the Arduino Uno controlled heat gun so that it maintains at desired temperature range as well as displaying temperature and humidity constantly
Instructor Comments from Last Meeting and Actions Taken to Address these Comments
There needs to be some research on mass transfer of the bag (some theoretical work to back up the experimental testing – better accelerate the test bed)
Do as much necessary testing that seems reasonable (all possible causes of water loss)
Risks and Areas of Concern
What are we going to do to ensure that there isn’t too much heat seeping away from our water loss tested
What will we do for low humidity water loss testing if we can’t use the low humidity chamber that Todor has at his company’s place
How do we accelerate the controlled water loss test bed while keeping humidity low?
When heat gun is turned off, how much does the humidity fluctuate up (not ideal to replicate desert conditions)?
Resources or Information Required but not Available
Water loss rate for the prototype and company silk bags
What is the primary cause for water loss in the bag?
What is the noise performance of the new bags compared to the original silk bags
Schedule
Do more rigorous water loss testing
Finalize the test bed
Perhaps order plywood and sheet metal for a new controlled water loss test bed
Update Gantt chart.
Budget (list amount spent and amount remaining)
Currently, we have only used approximately $220 out of the $1000 so far.
Christian spent around $25 for the bag materials
Dylan spent $10 on play sand
Total cost of the bags were $83.93 (materials and fabrication accounted for)
We ordered the bulk of our controlled water loss testing equipment, which cost us $74.19
Kevin spent about $25 for the heat gun
Progress on Report and Webpage
Update the Gantt Chart
Upload Weekly Progress Report