Term
| Why is CO frozen at levels above equilibrium? |
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Definition
| OH radicals are plentiful at high temperatures; deplete quickly at low temperatures. At high temperatures, CO forms quickly. |
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Term
| How is equilibrium between CO and CO_2 maintained? |
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Definition
| Cool gases slowly such that CO oxidation can occur. Required cooling rate cools with temperature. More oxidation = less CO emissions. |
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Term
| Name some examples of indoor environments. |
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Definition
| Residential,non-Residential (offices, factories,schools),Other (cars and trains) |
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Term
| Sources of Indoor Air Pollution: |
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Definition
| Combustion (cooking/furnace/boiler),Smoking, VOCs found in household cleaning products, Radon, etc. |
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Term
| Types of Indoor Air Pollutants |
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Definition
| Particulates, VOCs, Inorganics (lead, asbestos, radon, mercury, ozone,CO, SOx,NOx), BioAerosols, mold, noise, odor. |
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Term
| Equation for annual cost of ventilation. |
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Definition
C=(rate of work put into air*time*unit cost of electricity)/fan efficiency
rate of work=.0001174*air flow*change in pressure |
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Term
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Definition
The transfer of a material from one
phase to a surface where it is bound by
intermolecular forces |
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Term
| Mobile source emissions break down |
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Definition
| 60% of CO, 40% of NOx, 40% of VOCs, and 20% of PM. |
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Term
| Mobile Source Fuel Trends |
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Definition
| Low N content. Thermal NOx dominates (bc of high pressure and temperature). Pressure generally 10-15 atm. |
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Term
| Why is NOx frozen during mobile source emissions? |
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Definition
| First slugs to reach equilibrium at high temperatures and pressure...rate of cooling to be greater than NO reduction. |
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