Data
Empty
Barren Cavity: Hope is Born
Based on the heat flow through an empty chamber, we were able to establish a constant to make accurate comparisons. This test allowed us to calculate a baseline temperature differential between the
Calibration
Standard Fiberglass Batt Insulation
The purpose of this test is simply to correlate a temperature differential ratio to an R value. We chose Owens-Corning fiberglass bat insulation (R 13) to conduct this calibration test. Because we
Bags
564 Trips to the Store
Fortunately for us, we were able to raid the recycling bins at the local Safeway and Fred Meyer, where we acquired more than enough bags to conduct the test using strictly HDPE sacks. Each bag was
Analysis
Formulas and Number Crunching
The change of outside temperature over the change of inside temperature approached a constant heat flow after an hour of testing. An hour long testing period allowed the semi-guarded hot box to
