Biomass

These helpful conversion factors were published as Appendix B in the US Forest Service Woody Biomass Utilization Guide (2007).

1 green ton (GT) of chips = 2,000 pounds (not adjusted for moisture)

1 bone-dry ton (BDT) of chips = 2,000 dry pounds (assumes no moisture content)

1 bone-dry unit (BDU) of chips = 2,400 dry pounds (assumes no moisture content)

1 unit of chips = 200 cubic feet

1 BDT chips = 2.0 GT (assuming 50 percent moisture content)

1 unit of chips = 1.0 BDT chips

1 CCF (hundred cubic feet) roundwood = 1.0 BDU chips

1 CCF roundwood (logs) = 1.2 BDT chips

1 CCF roundwood (logs) = 1.2 units of chips

1 CCF roundwood (logs) = 1.2 cords roundwood @ 85 cu. ft.

1 Board Foot (BF) = 1 board foot measures 12-in by 12-in by 1-inch thick

1 MBF (thousand board feet) = 1,000 BF

1 GT (green ton) of logs = 160 BF of lumber

6 GT (green ton) of logs = 1 MBF

1 Standard chip van carries 25 green tons, or approximately 12.5 bone-dry tons (BDT) assuming 50 percent moisture content

When woody biomass is utilized in a commercial-scale (10+ megawatt (MW) electrical output) power generation facility, the following energy output rules of thumb apply:

  • 1 BDT fuel will produce 10,000 pounds of steam
  • 10,000 pounds of steam will generate 1 megawatt hour (MWH) of electricity
  • 1 MW = 1,000 horsepower
  • 1 MW = Power for approximately 750 to 1,000 homes

Comments

People are reading....

Going Wood with Hannah Barron

Real Firewood Stacking

Great Designs in Wood (74) - The Olde Oaken Barrel

Who Says Go Wood is Boring?

Holy Wood

Best of Logging 2018

Timber Glory Years in Minnesota

Don't Fence Me In

Let the Buyer Beware

From the Sawyer's Perspective: Sawing Hardwood Logs