Air-exchange rate

Air-exchange rate

The rate at which outside air replaces indoor air in a given space.
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Note, however, that the latter assumes an increase in air-exchange rate alone, without increasing the mass-transfer coefficients, which would tend to increase as ventilation increases.
Build-up of oily residue inside IBC exhaust ducts will gradually reduce the air-exchange rate and cooling capacity of the IBC system.
Home characteristic inputs include the home volume, the air-exchange rate, and the indoor background formaldehyde level (Versar Inc.
These ratios illustrate that the contribution from each of the UF-bonded products at the actual home loading rate, temperature, and air-exchange rate should not be added together.
Some nonresidential buildings (such as the buildings contaminated in the 2001 attack) have extremely high ceilings, and achieving a high air-exchange rate in these spaces may be not be feasible with portable air cleaners.
The higher the air-exchange rate, the greater the indoor ozone level, according to Weschler's data.
According to Wolff, air-exchange rates are a major factor in the safe implementation of Proton Onsite's equipment in the laboratory environment.
5), and working in pathology, which has low air-exchange rates (51% of evaluated areas; odds ratio 5.
Obviously, it would take a keen eye (or nose) to link these circumstances to a real IAQ problem, which is why it's important to upgrade your building automation system to include proper filtering, air-exchange rates and monitors.
By sealing windows and doors to keep inside air in and outside air out, we've reduced the air-exchange rates by a factor of two or more in many new houses," says Richard Corsi, associate professor of civil engineering at the University of Texas and one of the country's leading experts on indoor air quality.
Their double-blind, crossover study altered air-exchange rates at four buildings with sealed windows and mechanical ventilation systems every Friday afternoon for three two-week recording periods.
General procedures for testing at combinations of product-loading ratios and at air-exchange rates typical of the indoor environment were used.