Large sized maple
7 pieces , stacked 2221
Grate open, ashbox door closed. Left side ignition.
Air open. Air setting unchanged during burn
Extended burn, higher stack temp at end.
Animated Gif below, taken at 2 minute intervals . 150 minutes, total.
The exposure setting was too high for the first 28 minutes.
Flue gas analysis (top) and opacity (bottom).
The flue gas opacity at this point represents the raw ohmeter readings. Scaling issues will be addressed
once there is more data, and with some bench tests to determine % extinction.
(update, March 04/07: it appears that the laser is being absorbed by CO2, revised light source is described in HK-H11 )
The dips correspond to pokes of the fire. The tall spike was when a probe was repositioned and blocked the laser momentarily.
TESTO Excel data file
This page was updated on
March 4, 2007
This page was created on February 21, 2007