From: "Erica Raine" <Erica.Raine@Colorado.EDU>
To: <mach-sr1@lists.colorado.edu>
Subject: Mon. Nov. 4 minutes
Date: Tuesday, November 05, 2002 11:21 AM

I. Labscale
-Engines
  -4 chambers welded
  -pressure test to 1500 lbs
   -should mark tested chambers
   -should take measurements of the diameter to see if it changed
   -need to test flow rates
  -Graphite ordered
  -flanges should arrive today
  -Thank Matt for phenolic
-Feed System
   -found load cells from last year for mass flow
   -looking for the check valve
   -need a pressure regulator
    -will rent tanks, but will need to buy regualtor
    -hard to find for liquid
   -hope to order components early this week
-Failures calculations
   -blow out chamber wall first ~3000 psi
   -the seals will fail before the bolts
-Injector Head
   -need to do calculations for pressure drop
   -machine a small prototype for hydrotesting
   -should take 1-2 weeks
-Test Location
   -Lockheed is out: they are VERY busy launching an Atlas V
   -Otto will look into Pioneer Astronautics' offer
   -Koster seems ok with us testing in a field if we build a brick wall(?)
-Risk Assessment
   -Nick's failure calculations
   -check valve that turns off flow if the chamber pressure exceeds the
feed pressure
-Nozzle
   -Graphite ordered from Aercon.
   -Minimum 4 days machining
-Insulation
   -Ablative paint test
    -gives about 5 seconds of protection when exposed to open flame
    -Mike and Nick have details
   -Phenolic
    -pre and post will have phenolic liner
    -perhaps a reusable nozzle. Otto will investigate
-Data Acquisition
  -have 2 pressure transducers
  -need to test the transducers
  -thermocouple's coated in BoroNitride might extend their life
  -load cells under engine for real-time mass change
   -Xalin found flexible
-Test Stand
  -will depend on test site

II. End of the Week
-nozzles and spacers (dustin and otto)
-feed system components ordered
-pressure transducer test
-need to pick flow rates for test (0.1 and 0.2)
  -Koster wants a test matrix that discusses our decisions an
djustifications
-mold release test complete
-schedule machineing time in advance

III. PDR comments
-We did fine
-FEM analysis of final design
  -perhaps COSMOS(sp?) in ITLL
-Design Off-ramps (stopping points)

IV. Personal Updates (no Halloween party stories)
-team journal: just note what you did so we know who to ask for more
details
-Fuel release tests are in progress
-Meg says ~$3000 in account BEFORE we spent money on labscale. Don't know
where this year's department contribution went. Erica e-mailed Sunkle. We
need to hunt down teh money.
-We got $715 from EEF

Nick: shower head design for injection head, feed system ordering
Dustin:maching nozzle and phenolic
Xalin: nozzle temp. analysis, thermocouple with boronitride
Erica: pressure transducer test, UROP
Tom: feed system components, load cell tests, machining
Otto: nozzle and phenolic machining, showere head, test site
Tala: fuel molds, UROP, machining