air infiltration

Listing 1 - 10 from 18 for air infiltration

Landscaping for Energy Conservation
... occurs through three major processes: air infiltration, heat conduction, and transmission of radiant energy through windows. Air Infiltration Air infiltration is the passage of outside air through cracks around windows and doors or other openings in house walls or ceilings. One way outside air ...
www.ext.colostate.edu

Common Questions about Heat and Energy Recovery Ventilators
... on the natural exchange of air between the indoors and outdoors through air infiltration and exfiltration may not be satisfactory for good moisture control and indoor air quality. It also has become ... low-velocity flow of fresh outdoor air into the house (incoming air stream) while exhausting out an equal amount of stale indoor air (exhaust air stream). Fresh air is supplied to all levels ...
www.extension.umn.edu

A simple lysimeter for soil water sampling in south Florida
... on this soil is often associated with soil properties relative to water quality. Lysimeter Design Infiltration characteristics, which are predominantly influenced by soil properties, were considered in the lysimeter design. Lysimeters ... collected in the lysimeter is removed using the two tubes: one tube serves as an air vent while the other is connected to a peristaltic pump. During the life of the ...
edis.ifas.ufl.edu

Extoxnet FAQs - Questions About Pesticide Environmental Fate
... ? Pesticides can move from their initial distribution by a number of processes. In air and water (including air and water in soil) pesticides move only short distances by diffusion. To ... that strongly adsorb pesticides and have a slow infiltration rate. Soil sorption and infiltration rate also determine pesticide loss in runoff. Soils with slow infiltration rate may be more prone to runoff, ...
extoxnet.orst.edu

Espalier
... fruit trees in an espalier form is that the open frame created permits excellent light infiltration, with all parts of the tree exposed to direct sunlight. This results in a higher ... arrived late this year, but the fragrance of blossoms is finally beginning to fill the air. From our somewhat selfish perspective it is easy to believe that the fragrance and beauty ...
gardenline.usask.ca

Soil Compaction And Drainage, AEX-301
... silt loam soil is 50 percent soil particles, 30 percent water and 20 percent air. Of course, air and water content are constantly changing. An applied load that reduces the total volume ... from the surface or through subsurface drains. Compacting the soil through farming practices will slow infiltration, increase the volume of surface runoff and allow less water to enter the soil profile ...
ohioline.osu.edu

Grafting Australian Native Plants
... and north west. This, and an altitudinal range of 520 to 706 m allowing cold air drainage, makes the site warmer than most other locations in Canberra and gives a good ... Firth and Associates, 1984). The upper horizons tend to be coarse textured and allow rapid infiltration of rain water despite the steep slope. However, many areas remain waterlogged for several days ...
www.anbg.gov.au

Fruit Disease Focus - Blue Mold, Penicillium expansum
... been recommended. Calcium applied to fruit by infiltration after harvest consistently shows a significant reduction in fruit decay during storage. Treatment of apples with hot air (38 C for 4 days) ... also improved Golden Delicious and Gala quality in storage. Holding fruit in hot dry air can also reduce lenticel infection; however, additional studies are needed before final recommendations can ...
www.caf.wvu.edu

Explore Cornell - Home Gardening - Lawn Care Library - Relieving Thatch
... when temperatures are starting to cool and the soil is only slightly moist. After aeration, air and moisture can penetrate the thatch through the holes. Leave the soil cores on the ... aeration is similar to that provided by earthworms. Core aeration can also help increase water infiltration on compacted soils. Introduction Healthy Lawn Overview Why Lawns Matter Choosing a Lawn Care Service ...
www.explore.cornell.edu

Housing - Selecting Replacement Windows for your Home
... Infiltration rating or U-factor, measures the window's ability to reduce air leakage through the gaps between the sash and the frame. Most ratings note the air movement when the wind is blowing at 15 MPH. Compare windows and look for ones with low U-factor infiltration numbers less than .35. To prevent condensation, look for windows that have warm air technology. It ...
www.extension.umn.edu