February 26, 2010
Second of a pair matched loads, large loads of wet birch, stacked front to back.
White birch, 78.1 lb total, incl. 3.75 lbs kindling. 31.7% moisture.
North-South loading. Largest pieces first. Loaded onto a coal bed (Colorado method)
Efficiency is calculated at 95% oxygen recovery (Colorado method).
Stack temperature corrected for height.
Did not spike like last test, slower controlled start, yet hotter burn overall, slightly shorter.
Slightly drier, hotter firebox to start, so difference must have been in the stacking.
40% lower PM, 20% lower CO, 0.6% higher efficiency
Condar Spreadsheet Results
Condar Spreadsheet (includes detailed fueling data)
Animation, 2 minute intervals.
Graph from Testo analyzer. 30 second sampling intervals.
The green line tracks the CO/CO2 ratio.
TESTO Excel data file
Raw data file
Opacity curve started at 10 minutes, just after fuel loaded. Did not capture the kindling phase.
Stacking is North-South, with largest pieces on bottom, onto a coal bed.
Fuel load. Pieces are ordered smallest to largest, left to right. Stacking was from right to left (largest pieces on the bottom).
This page was updated on
March 7, 2010
This page was created on February 27, 2010