Window-Related Air Exchange Rates

Description

Data reported by Howard-Reed et al. on the increase in whole-house air exchange rate due to the opening of one or more windows in two houses

Usage

data(window.aer)

Format

A data frame with 94 observations, corresponding to each different experiment, and the following 14 variables:

House

either the California, CA, or the Virginia, VA, house

Volume.m3

Volume of the house in cubic meters

Mon.Location

a factor with levels 1st Floor and 2nd Floor, giving the location of the SF6 monitor

Num.Windows

the number of total open windows

Num.1st.Floor

the number of open windows on the 1st floor

Num.2nd.Floor

the number of open windows on the 2nd floor

Num.3rd.Floor

the number of open windows on the 3rd floor

Width.cm

the width of the (single) window opening

Area.cm2

the area of the (single) window opening

Win.Room

a factor with levels Den, Dining, LR Door, Nook, Office, Recreation, giving the room where the (single) window was opened

Date

the date of each experiment

State0.ACH

the baseline air exchange rate with zero open windows in ain changes per hour

New.ACH

the new air exchange rate after one or more windows were opened in air changes per hour

Delta.ACH

the change in air exchange rate betweenthe baseline case and the open-window case in air changes per hour

Details

This data set contains air exchange rates (AER) (in units of air changes per hour) determined in Virginia (VA) and California (CA) houses for 94 SF6 tracer-gas window-opening experiments as reported in Howard-Reed, Wallace, and Ott (2002) JAWMA 52:147-159.

Single window-opening experiments – at different widths of opening – are included in this data frame for the VA and CA houses, with multiple window-opening experiments included for the CA house.

Variables in this data frame include the following: The house volume (cubic m), monitor location, total number of opened windows, number of windows opened on each of three floors (Note: the CA house only had two floors), width of the opening (cm), area of the opening (cubic cm), room where the window was opened (single window experiments only), experiment date, initial (State 0) air exchange for the case with all windows closed, new air exchange after one or more windows were opened, and the change in air exchange after the window(s) was(were) opened.

Air exchange rates were determined using a tracer-gas decay method.

Source

These data were drawn from tables in Howard-Reed et al. (2002)

References

Cynthia Howard-Reed, Lance A. Wallace, and Wayne R. Ott (2002) "The Effect of Opening Windows on Air Exchange Rates in Two Homes," Journal of the Air and Waste Management Association 52:147-159.

Examples

data(window.aer)