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2008 Condar Tests

Test HK-J03
January 11/08

White birch, small pieces, 20% moisture, 50.8 lbs
15 pieces. 2.75 lbs kindling.
Cold fuel. Cold heater

Animation HK-I
Animation, 2 minute intervals.

gas analysis
Flue gas
At 24 minutes, the ashbox door was closed as an experiment (air supply reduced to setting #2). This created a CO spike.
At 31 minutes the ashbox door was opened again (maximum air), but the burn did not recover, as is evident in the
opacity curve, below.
This may be a good example of "Umkippen der Verbrennung", an Austrian term referring to a burn "going off the
rails". Ie., a bifurcation, which is a feature of highly non-linear systems that have positive feeback phenomena.

Compare with the two ASTM crib simulation tests, HK-H12 and HK-H13, which also exhibit mid burn CO spikes,
unlike other tests.

Also HK-H16 and HK-H17 are cordwood simulations of the ASTM crib tests, and also a mid-burn CO spikes,
although not as pronounced.

TESTO Excel data file


Compare with mid-burn spikes from ASTM crib simulation tests HK-H12 and HK-H13

Also HK-H16 and HK-H17 cordwood simulations of the ASTM crib tests

Condar Spreadsheet Results
Condar Spreadsheet Results
Condar Spreadsheet (includes detailed fueling data)

Fuel stack.

fuel stack
Pieces are numbered left to right, and stacked in a prescribed order.

Graphical data comparison of Condar tests

This page was updated on January 17, 2008
This page was created on January 11, 2008