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B3b. Exhaust Emissions (Disposal Equipment)
<br />Emissions of nitrous oxide from solid waste disposal are calculated using the following equations:
<br />-1
<br />Y = (E)*(h)*(n)*(C)
<br />A
<br />Y = annual emissions of nitrous oxide from solid waste disposal, tons/yr.
<br />A
<br />E = emission factor for disposal equipment, lbs/hr (SCAQMD Off-Road Mobile Source Emission Factors, 2007).
<br />h = operating hours per day, 2 hrs/day.
<br />n = days per year, 365 days/yr.
<br />C = conversion factor from lbs to tons, 2,000 lbs/ton.
<br />E, lbs/hr *h, hrs/day **n, days/yrC, lbs/tons
<br />Vehicle TypeY, tons/yr
<br />AWE
<br />Excavator1.324923652,0000.48
<br />Grader1.619123652,0000.59
<br />Off-Highway Tractor2.176723652,0000.79
<br />Off-Highway Truck2.725623652,0000.99
<br />Total, tons/yr2.85
<br />* E = emission factor for disposal equipment based on the composite nitrogen oxide emission factor for each vehicle type.
<br />** h = operating hours per day (and vehicle fleet) are based on typical operating time (and vehicle fleet) necessary to dispose 5.11 tons of solid
<br />waste per day.
<br />B4. Wastewater
<br />Emissions of nitrous oxide from waste water treatment are calculated using the following equation:
<br />Y = (Y)*(R)
<br />A2A1W
<br />Y = annual emissions of nitrous oxide from waste water treatment, tons/yr.
<br />A2
<br />Y = annual emissions of nitrous oxide from electricity used for potable water treatment and transportation, tons/yr.
<br />A1
<br />R = ratio between potable water usage and waste water production, 0.56 (USEPA, 1992).
<br />W
<br />Y, tons/yrR *Y, tons/yr
<br />A1WA2
<br />7.70E-010.564.31E-01
<br />* R = ratio between water usage and waste water production based on the ratio between indoor water usage and total water usage per
<br />W
<br />household under the assumption that emissions from potable water treatment and transportation for domestic use are equal to emissions from
<br />waste water transportation and treatment.
<br />C. Summary Table
<br />Emissions,
<br />Emissions
<br />Source Typetons/yrtons/yr(GWP)
<br />Construction equipment0.002200.68324
<br />Motor vehicles10.513603259.216
<br />Direct
<br />Landscape equipment0.000740.2294
<br />Cooling and heating0.025507.90438
<br />Total direct, tons/yr10.542043268.03302
<br />Electricity0.0525116.2781
<br />Potable water0.77043238.8327439
<br />Indirect
<br />Solid waste2.85006883.5191208
<br />Wastewater0.43144133.7463366
<br />Total indirect, tons/yr4.104441272.37630
<br />Total, tons/yr14.646484540.40932
<br />Global warming potential index310
<br />Global warming potential, tons/yr4540.409327808.44
<br />Page 13 of 13
<br />Renaissance Potential Net Development
<br /> Input data for Green House Gas Emissions
<br />Mitigated
<br />Carbon Dioxide
<br />A. Direct Sources
<br />A1. Mobile (Construction Equipment, Motor Vehicles, and Landscape Equipment) and Stationary Sources (Cooling and Heating)
<br />Emissions of carbon dioxide from mobile (construction equipment, motor vehicles, and landscape equipment) and stationary sources (cooling and
<br />heating) are calculated using the following equation:
<br />Y = (Y)+(Y)+(Y)+(Y)
<br />A1234
<br />Y = mitigated annual emissions of carbon dioxide from mobile and stationary sources, tons/yr.
<br />A
<br />Y = mitigated annual emissions of carbon dioxide from construction equipment, tons/yr (URBEMIS 2007 9.2.2 output file).
<br />1
<br />Y = mitigated annual emissions of carbon dioxide from motor vehicles, tons/yr (URBEMIS 2007 9.2.2 output file).
<br />2
<br />Y = mitigated annual emissions of carbon dioxide from landscape equipment, tons/yr (URBEMIS 2007 9.2.2 output file).
<br />3
<br />Y = mitigated annual emissions of carbon dioxide from cooling and heating, tons/yr (URBEMIS 2007 9.2.2 output file).
<br />4
<br />Y, tons/yrY, tons/yrY, tons/yrY, tons/yrY, tons/yr
<br />1234
<br />A
<br />677.4577,601.490.008,506.67
<br />86,785.61
<br />7.24
<br />Reduction percentage, %
<br />ûØØÓÈÓÍÎÛÐ Ê×ØÇÙÈÓÍÎÉ Ú×ÃÍÎØ çÊÚ×ÏÓÉ
<br />Heating & Cooling & Transportation
<br />Red = Building design shall incorporate basic or enhanced insulation such that heat transfer and thermal bridging is minimized (20% reduction in heating. Heating is a percentage of
<br />total electric, therefore reductio
<br />n
<br />1
<br />is heating percentage * reduction pe
<br />Red = Limit air leakage through the structure or within the heating & cooling distribution system (?%reduction). Heating is a percentage of total electric, therefore reduction is heating
<br />percentage * reduction
<br />2
<br />percentage)
<br />Red = Residential buildings meet or exceed ENERGY STAR rated windows. This will reduce heat/cooling energy usage. Heating is a percentage of total electric, reduction = Mitigation
<br />reduction * Heating % of
<br />3
<br />total electrical usage. (?% reduction)
<br />Red = Residential buildings meet or exceed ENERGY STAR rated heating and cooling units. This will reduce heat/cooling energy usage. Heating is a percentage of total electric, reduction
<br />= Mitigation reduction *
<br />4
<br />Heating % of total electrical usage. (?% r
<br />Red = Plant shade trees around main buildings to reduce direct sunlight into the structures (?% reduction)
<br />5
<br />Page 1 of 14
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