HK-J27 - February 20th, 2008

Notes

• Lowest instantaneous CO/CO2 ratio of 30 run series
• White birch, 20% moisture, 70.0 lbs
• Medium pieces, smaller on top, 10 pieces
• Stack sloped towards kindling
• Cold heater (90 F firebox temp), Cold fuel (-5 F)
• Side ignition.
• Cold kindling, 3.5 lbs with 2.25 lbs extra added at 18 minutes (see gas curves)
• Lowest instantaneous CO/CO2 ratio of 30 run series - 0.0002 at 84.5 minutes (10 ppm)
• 1.4 g/kg PM (Condar)
• 16.7 g/kg CO
• 72.3% overall efficiency

Animation

Last 20 minutes missing due to computer crash.

Flue Gas

Data from minute 100 to 115 is missing, and interpolated. The CO around minutes 85 - 95 is the lowest on record, reaching as low as 10 ppm, with a CO/CO2 ratio of 0.0002 (0.01 is usually considered to be very good).

Opacity

3.5 lbs of kindling started very clean, but then ran out of steam and CO started going up. 2.25 lbs of kindling added at 18 minutes. This overamped things, as evidenced by the uncharacteristic nature of the opacity curve.

Statistics

Fuel stack

Resources

• Excel Data File: testoJ-27.xls

• Condar Spreadsheet + Fueling Excel Data File: Condar-HKJ-27.xls