In proving that the
double automatic sliding doors at the airport provide less heat loss than
single automatic sliding doors, we decided to do comparative testing with
both sets of doors. The airport only has double automatic sliding
doors, but keeping the outer set of sliding doors permanently open would
give us the same results as single automatic sliding doors.
We will prove or disprove
this greater heat loss by measuring heat in 4 different zones (outside
outer doors, inside vestibule, just inside inner door, and a column 12
ft. farther into airport) to get temperature readings for each of those
zones and also measure the average wind velocity coming through the inner
set of double doors to calculate the heat loss through wind filtration.
We will be using four HOBO XT's (data loggers) and an anemometer to measure
accurate wind speeds.
The site at the airport
allows us to control temperature inside the vestibule space by eliminating
heat altogether. The vestibule space is typically heated to 70 degrees
Fahrenheit with the heating unit overhead and around a foot and a half
from the first set of sliding doors. We have permission to turn of
the thermostat so as to take out that variable.
Steps:
We set up the hobos
at the Eugene Airport entrance at 5 am and were going to concentrate on
the measurements from 5:30 to 7:00.
From 5:30 to 6:00 we
left both sets of sliding doors operable and turned the vestibule heater
(marked in red on the entrance floor plan) off. We began taking wind
velocity measurements from 5:45 until 5:55 at increments of 30 seconds.
From 6:00 to 6:30 we
turned on the vestibule heater to 70 degrees (the normal temperature for
the vestibule). We again left both doors operable and measured wind
velocity from 6:15 to 6:25.
From 6:30 to 7:00 we
kept the outside double sliding doors open and turned the heater off once
again. We measured wind velocity from 6:45 to 6:55.
