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Small and Smaller: New challenges and solutions for moving smallwood. Bob Rummer US Forest Service Auburn, AL. Outline. Anticipating smallwood challenges Merchandizing Smallwood harvesting Smallest wood (biomass) harvesting. Smallwood. Reduction in available supply of larger trees

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small and smaller new challenges and solutions for moving smallwood

Small and Smaller: New challenges and solutions for moving smallwood

Bob Rummer

US Forest Service

Auburn, AL

outline
Outline
  • Anticipating smallwood challenges
  • Merchandizing
  • Smallwood harvesting
  • Smallest wood (biomass) harvesting
smallwood
Smallwood
  • Reduction in available supply of larger trees
  • Fuel reduction
  • Adaptation

Idaho City, ID

significant trends1
Significant Trends
  • Security
  • Economic impacts
  • Environmental
its all about the green
Its all about the green …

Photo: Barry Wynsma

costs define
Costs define …
  • What trees are cut (the perceived value of the treatment)
  • What biomass has value in the market
  • What product sorting, processing, merchandizing occurs
expensive to work with smallwood
Expensive to work with smallwood
  • Driven by volume/piece
  • Underutilization of equipment
solutions
Solutions
  • Match equipment to task
  • Accumulate/pre-bunch
felling processing piling cost
Felling, Processing, Piling Cost

$/ton

140

Mechanized

120

100

80

60

40

Manual

20

0

0

2

4

6

8

10

dbh (in)

more efficient alternatives
More efficient alternatives
  • Mulching
  • Piling

Photo: Don Peterson

Photo: Barry Wynsma

integrated product recovery
Integrated product recovery

“The cheapest way to get the 4” stick is when it is attached to an 8” stick.” Steve Aulerich

recovery of energy wood
Recovery of energy wood

Harvest Cost

Rec. Vol

$10/gt

$7.50/gt

$9/gt

50%

85%

84%

Conventional

One-pass energywood

Two-pass energywood

improve efficiency harwarders
Improve efficiency: Harwarders
  • Several designs
  • Reduced handling
  • Low-impact

Valmet 801 Combi

performance

2nd Thin

Final harvest

CTL

Dual

Combi

CTL

Dual

Combi

Performance

Min/m3

20

1st Thin

18

16

14

12

Site Move

10

Forward

8

Harvest

6

4

2

0

CTL

Dual

Combi

system productivity
System Productivity
  • Removed ~9 CCF/acre, 3.8 PMH/acre
  • Elemental times ~16 min/CCF
  • Gross time ~25 min/CCF
  • Misc. elements nearly half of all operating time
  • Production rates similar to the Scandinavian studies
timberpro tf 820 e
TimberPro TF 820-E
  • 250 to 300 hp
  • 23’ reach w/6’
  • 10.5’ wide, 33’ long
  • 52000 lbs
  • $460K
  • Dual technology
improve payload1
Improve payload
  • 14 ton forwarder
  • 9 ton payload
  • ~$90,000

Continental Biomass Industries

BTS-1

improve payload2
Improve payload

Photo: Dan Len

swath harvesters
Swath harvesters

Nicholson-Koch Mobile Chipharvester, 1980

merchandizing energy
Merchandizing energy
  • Product is btu’s
  • Unique spec’s
energy value includes
Energy value includes …
  • Energy inputs
  • Emissions
summary
Summary
  • Changing world for smallwood recovery
  • The smallest fraction will likely be merchandized for energywood
  • New technology to address barriers
    • Improved handling efficiency
    • Improved payload
    • Processing for value
  • Its an exciting time to be working in the woods
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