Small and smaller new challenges and solutions for moving smallwood
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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 trends

Significant Trends

  • Fire

  • I&D


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


Example

Example


Assume greengas 1 75 gal

Renewable Oil Int’l Bio-oil

Assume: GreenGas $1.75/gal


Example1

Example


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)


Payload is key

Payload is key


Add the money

Add the money


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


Integrated recovery

Integrated recovery


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


What about something new

What about something new?


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 efficiency cycle time

What if your skidder was never empty?

Improve efficiency: cycle time

Photo: MTDC


Increasing recovery of residues

Increasing recovery of residues


Low density

Forwarding residues, Flagstaff, AZ

Low density


Improve payload

Improve payload


Improve payload1

Improve payload

  • 14 ton forwarder

  • 9 ton payload

  • ~$90,000

Continental Biomass Industries

BTS-1


Improve payload2

Improve payload

Photo: Dan Len


Small and smaller new challenges and solutions for moving smallwood

Photo: BLM, Alturas


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


The future

The Future


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