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) – add fan for circulation
We have done continued water loss testing via sand outside EBU 2 and via Arduino controlled environment
Accomplishments from Previous Week
We finished first draft of report
Did preliminary mass transfer analysis as well as test bed designs to model Darcy’s Law
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 to control the industrial 120mm Antec fan
Dylan: Keep in contact with Todor for updates on material especially Tyvek
Kevin: Design practical nylon window with proper dimensions done
Albert: Research different materials that are anti-static and have good water retention (plastics, Tyvek, anti-static cloths, etc)
Dylan: Go into GroundMetrics quarters to do Noise performance testing of anti-static plastic and windowed anti-static plastic
Christian/Jordan: Continue water loss testing using the 120mm Antec fan for circulating the air (lower humidity)
Sponsor Comments from Last Meeting and Actions Taken to Address these Comments
· What other materials have we possibly come up with to test and our water loss test results
· Noise performance of nylon was twice worse compared to silk (original); cotton was comparable to silk (original) but had transient spikes at random (possibly due to static discharge)
· We will do continued testing of controlled environment test bed with the addition of fan
· Research more possible materials to test (main goal of this project)
Instructor Comments from Last Meeting and Actions Taken to Address these Comments
There needs to be some research and proper test bed 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
How much lower and constant will the humidity % be with the fan added to the controlled environment test bed?
How do we accelerate the controlled water loss test bed while keeping humidity low?
Getting the new bag materials as fast as possible for testing (time is running out)
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?
How well do the anti-static bags perform noise performance wise when tested with the actual sensors
Schedule
Do more rigorous controlled water loss testing
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
Added diagrams to controlled test bed
Upload Weekly Progress Report