Emission Controls for Small Wood-Fired Boilers - Western Forestry ...
Emission Controls for Small Wood-Fired Boilers - Western Forestry ...
Emission Controls for Small Wood-Fired Boilers - Western Forestry ...
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PM10 Operating Cost Calculation Values & References<br />
GENERAL INPUTS<br />
Category Value Notes<br />
Interest rate (%) 0.07 Default value from EPA Cost Control Manual<br />
Economic life (years) 20 Default value from EPA Cost Control Manual<br />
Capital Recovery Factor (CRF) 9% Equation 2.8a from EPA Cost Control Manual<br />
CYCLONE / MULTICYCLONE OPERATING COSTS<br />
Category Value Notes<br />
total ash disposal cost $0.00 all ash land applied <strong>for</strong> soil enhancement<br />
electricity price ($/kwh) 0.1 av'g commercial elec. cost in 2009 (http://www.eia.doe.gov/cneaf/electricity/epm/table5_3.html)<br />
waste gas flow rate (acfm) 2562 from review of recent stack test reports in Vermont<br />
static pressure drop (in wc) 2 based on project experience<br />
combined fan‐motor efficiency 60% from EPA Cost Control Manual<br />
hours per year 2,190 operating half the year at average operating capacity of 50% load<br />
incremental electricity cost $219.76 EPA Cost Control Manual, Equation 1.46.<br />
labor hours per year 12 regular inspections, unexpected maintenance and annual inspection of the interior<br />
labor rate $30.00 personal communication with wood boiler vendor<br />
labor costs $360.00<br />
total annual costs $579.76<br />
HIGH EFF MULTICYCLONE<br />
Category Value Notes<br />
total ash disposal cost $0.00 all ash land applied <strong>for</strong> soil enhancement<br />
electricity price ($/kwh) 0.1 av'g commercial elec. cost in 2009 (http://www.eia.doe.gov/cneaf/electricity/epm/table5_3.html)<br />
waste gas flow rate (acfm) 2,562 from review of recent stack test reports in Vermont<br />
static pressure drop (in wc) 4 from vendor quote<br />
combined fan‐motor efficiency 60% from EPA Cost Control Manual<br />
hours per year 2,190 operating half the year at average operating capacity of 50% load<br />
incremental electricity cost $439.52 EPA Cost Control Manual, Equation 1.46.<br />
labor hours per year 12 regular inspections, unexpected maintenance and annual inspection of the interior<br />
labor rate $30.00 personal communication with wood boiler vendor<br />
labor costs $360.00<br />
total annual costs $799.52<br />
CORE SEPARATOR (24 INCH)<br />
Category Value Notes<br />
total ash disposal cost $0.00 all ash land applied <strong>for</strong> soil enhancement<br />
electricity price ($/kwh) 0.1 av'g commercial elec. cost in 2009 (http://www.eia.doe.gov/cneaf/electricity/epm/table5_3.html)<br />
waste gas flow rate (acfm) 2,562 from review of recent stack test reports in Vermont<br />
static pressure drop (in wc) 8 personal communication with vendor<br />
combined fan‐motor efficiency 60% from EPA Cost Control Manual<br />
hours per year 2,190 operating half the year at average operating capacity of 50% load<br />
incremental electricity cost $879.03 EPA Cost Control Manual, Equation 1.46.<br />
labor hours per year 12 regular inspections, unexpected maintenance and annual inspection of the interior<br />
labor rate $30.00 personal communication with wood boiler vendor<br />
labor costs $360.00<br />
total annual costs $1,239.03