Using Carbon Dioxide as a Tracer Gas to Measure Air Change Rate ...
Using Carbon Dioxide as a Tracer Gas to Measure Air Change Rate ...
Using Carbon Dioxide as a Tracer Gas to Measure Air Change Rate ...
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5000<br />
4000<br />
3000<br />
2000<br />
1000<br />
0<br />
Average <strong>Carbon</strong> <strong>Dioxide</strong> Concentration (ppm) vs<br />
Time<br />
Middle School<br />
March 21, 2003<br />
0 25 50<br />
Time in Minutes<br />
75<br />
Boilers Off<br />
1.2 ACH<br />
Middle School<br />
<strong>Carbon</strong> <strong>Dioxide</strong><br />
Concentration (ppm)<br />
<strong>Carbon</strong> <strong>Dioxide</strong><br />
Concentration (PPM)<br />
Boelter & Yates, Inc. 2004<br />
Average CO2 Concentration vs Time<br />
Boiler Room - 2 Boilers<br />
March 31, 2003<br />
5000<br />
4000<br />
3000<br />
2000<br />
1000<br />
0<br />
1 112131415161718191<br />
Time in Minutes<br />
Boilers On<br />
Trial 2 - 4.4 ACH<br />
Trial 3 - 5.3 ACH<br />
Average – 4.9 ACH<br />
Boilers On (1 boiler on part<br />
time): Trial 2 - Average CO2<br />
Concentration 4.4 <strong>Air</strong><br />
<strong>Change</strong>s Per Hour,<br />
GlenCrest School March 31,<br />
2003<br />
Boilers On: Trial 3 - Average<br />
CO2 Concentration 5.3 <strong>Air</strong><br />
<strong>Change</strong>s Per Hour,<br />
GlenCrest School March 31,<br />
2003
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