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7 Cards in this Set
- Front
- Back
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Temperature reduction mechanism |
Transpiration, evaporation and transport of water. Wind speed and surface roughness, effect on Boundary layer. Shade, local reduction and solar heating |
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Sensible heat |
Heat that can be sensed by a thermometer |
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Latent heat |
Hidden heat absorbed and then released during phase change |
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Urban treez impact on environment |
Temperature reduction, removal of air pollution, emissions of vocs, human health, energy |
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Evapotranspiration increases late in heat loss |
If trees use a thousand a day in hot weather of water, evaporation of this volume requires 625 kilowatts of energy which is greater than Urban daily energy use of urban residents. He evaporation comes from surrounding atmosphere and causes Cooling |
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Removal of particulate matter such as carbon dust and brake linings |
Mechanism, dry de position. Adheres to wax cuticle can be removed by wind washed off by rain. Street row trees found to reduce PM Levels by 20 to 50% |
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Trees remove Airborne pollutants |
Gases like Knox SO2 Co and ozone. Particulates. Wanted to percent Improvement in air quality. |
