wood stove ?????. biomass heat generation alternative & economical fuel swcs snec 2010 winter...
TRANSCRIPT
WOOD STOVE ?????
Biomass Heat Generation
Alternative & Economical Fuel
SWCS SNEC 2010 Winter Meeting Bruce Payton, RIDEM Forest Environment
Why a Biomass Project?• Higher Initial Cost vs. Tremendous Long-Term Energy
Savings…. In the order of 1000% !!• Strategic - Lessen dependence on foreign oil• Help State meet oil usage reduction standards• Demonstrate use of sustainable energy source• Support local economy• Reduce forest fire hazard material• Demonstrate technologies to reduce greenhouse gases• Become Biomass prototype for Rhode Island & SNE• Increase grant funding sources for project
Biomass Heat Generation Review of Mt. Wachusetts Community College(MWCC)
• 28 March 2005 Site visit
• Richard Sparks Energy and Site Development Sub-committees Bruce Payton, Site Development Sub-committee
• Rob Rizzo, MWCC Associate Director Forest & Wood Products Institute, Gardner, MA.
• Broke ground in April 2002 to convert 450,000 square foot all-electric Campus to Biomass, day & evening operations.
• Completed 60x60 steel and concrete building, December 2002
Fuel Type Unit BTU per
Unit
Average Price per
Unit
% Combustion
Efficiency
Cost per
Delivered
MMBTU
Propane Gallon 92,000 $1.76 80% $ 23.90
Oil Gallon 138,000 $2.19 75% $ 21.15
Wood Pellets Ton 16,800,000 $220.00 80% $ 16.36
Wood Chips Ton 9,900,000 $47.00 65% $ 7.30
* Updated 3/07 Phase 1 Report, Biomass Heating Feasibility Report, Foster-Glocester Schools, Biomass Energy Resource Center, Montpelier, VT, September 2005
Cost Comparison*
Simple Cost Comparison
Green wood at 40% Moisture content (chips average 35%MC) at $47/ton is equal to:
• #2 fuel oil at $0.68/gallon• propane at $0.42/gallon• electricity at $0.019/kWh• wood pellets at $80.59/ton
SUPPLY
Approximately 143,000 Acres
More than 20%
C-Series 5 MM to 14 MM BTU’s/Hr
Live bottom floor in tractor-trailer for wood chip delivery
Mostly used for below grade storage bins.
Biomass Energy Resource Center, 50 State Street Montpelier,VT
Foster/Glocester Middle School
Drop-down Storage Bay
Automatic Fuel Feed
• Bay stores 60 tons, approximately 3 trailer loads
“Chiptec” Live Bed Wedge Wing fuel handling feed system
Multi-ram Wedge Wing Floor
Automatic Electric Eye Demand
Combustion Unit
3.5 million Btu/hr CHIPTEC Phoenix-Series Gasifer
Water Jacket
• Removes all particulate emissions • Meets RI emissions standards, only water vapor emitted
• Fly ash considered hazardous material due to size of particles
Multicyclone
Modem Interface
Allows modem interface for computer diagnostics and offsite corrections
Biomass Energy Resource Center, 50 State Street Montpelier,VT - Website- Emissions and Air Quality
Particulate Emissions
What difference does a 0 make in front of a number?
.004 vs .04
Typo check the numbers
First Biomass Boiler in a Vermont School Installed 1992
Firebox and Fuel Feed Auger
Fire Suppression
Hose
Fuel Storage Building
Floating Auger
Metering Auger Feed
Metering Auger Housing to Boiler
Maintenance
• Rake ash every 3-4 days, empty ash pit weekly
•Ash is used on property for fertilizer, non-toxic.
FUEL SPILL CLEAN UP OIL
(any amount must be reported to DEM)
OIL: Can be Hundreds to Thousands $$$$$$$$
FUEL SPILL CLEAN UP WOOD
COSTS TODAY
• Ponagansett Middle School
• 3.5 million Btu/hr
• $ 2 Million (building, storage and heat unit)
• Ponagansett High School
• 6.5 million Btu/hr
• $ 2.7 Million (building, storage and heat unit)
Conclusion and Recommendation• Biomass Heat Generation appears to be a viable and
economic alternative that should be considered as part of the energy evaluation of both the Pongansett new Middle School and High Renovations.• For the future, Biomass heat and electricity in schools andpublic buildings throughout the State of Rhode Island.
• If you don’t think it’s possible check, check out what the State of Vermont is doing. Public schools the size of theone proposed for Foster/Glocester are already on line for heat using approximately 700 tons of green hardwood chips per year. MWCC started a wood gasification project in 2007 to generate electricity to run maintenance vehicles.• Biomass Energy Resource Center: Phase 1 Report, Foster-Glocester Feasibility Report
Contact Information
Biomass Energy Resource Center P.O. Box 1611 Montpelier, VT 05601 Phone: 802.223.7770 [email protected]
Mount Wachusett Community College 444 Green Street Gardner, MA 01440-1000Rob Rizzo Phone: 978.630-9137 E-mail: [email protected]
Division of Forest Environment 1037 Hartford Pike N.Scituate,RI 02857Bruce Payton Phone: 401.647.3367 E-mail: [email protected]
Richard M. Sparks, Consultant
48 East Killingly Road Foster, RI. 401.647.2833 E-mail: [email protected]
Chiptec 48 Helen Ave. So.Burlington, VT 05403 802.658.0956 ww.chiptec.com
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