156B Week 10

Overview of Status of Analysis, Design, Fabrication, Tests, etc.

Fabrication of wind tunnel complete, except for Promalite. We are trouble shooting the software, but circuits are all working.

Accomplishments from Previous Week

• • Wind tunnel duct complete

  • Mounting for duct and insulation complete

  • Teflon PTFE machined

  • Copper machined

Goals for Next Week (list names after each item). Use specific and measurable objectives.

• • Assemble all components (Tian)

  • Protoboard (Anthony)

  • Combine all LabVIEW parts for different sensors, tune temp controller PID (Liz)

  • Research airflow speed calibration techniques (Austin)

  • Run through experiment (Team)

  • Finalize poster (Team)

  • Edit report and post draft (Team)

Sponsor Comments from Last Meeting and Actions Taken to Address these Comments

• • Seshadri met with the team to see the fabricated wind tunnel and was satisfied with the design

  • Seshadri emphasized the need for uniform airflow which will be accomplished with honeycomb and mesh screens

Instructor Comments from Last Meeting and Actions Taken to Address these Comments

• • 5 RTD channels is sufficient for protoboard

  • Final calibration should use 0.01% resistor

  • Jerry says to use a separate circuit for overtemperature setup and to use a normally closed thermal switch

  • Jerry says to attach an E-prong to circuit for memory collection

  • We will likely purchase the expensive epoxy because thermally conductive paste melts since it is grease/liquid - epoxy is better because it doesn’t migrate

Risks and Areas of Concern

Resources or Information Required but not Available

Schedule

• • Complete circuits

  • Complete LabVIEW

  • Check accuracy of model to theory

Budget

• • $870.97 spent, $1129.03 remaining

Progress on Report and Webpage

• • 2nd draft of report and webpage completed