A gas engine has been running in a closed garage, resulting in a CO level of 600ppm. Upon opening the door, turbulent mixing begins. If the door is 3m wide and 2m high, the garage is 10m long, and eddy diffusivity is approximated to be 1m²/s, how long will it be before CO concentration has dropped to 100ppm, which is considered safe for brief exposure periods? Answer: 179 seconds (or 3 minutes)

Structural Analysis
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ISBN:9781337630931
Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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A gas engine has been running in a closed garage, resulting in a CO level of 600ppm. Upon
opening the door, turbulent mixing begins. If the door is 3m wide and 2m high, the garage is
10m long, and eddy diffusivity is approximated to be 1m²/s, how long will it be before CO
concentration has dropped to 100ppm, which is considered safe for brief exposure periods?
Answer: 179 seconds (or 3 minutes)
Transcribed Image Text:A gas engine has been running in a closed garage, resulting in a CO level of 600ppm. Upon opening the door, turbulent mixing begins. If the door is 3m wide and 2m high, the garage is 10m long, and eddy diffusivity is approximated to be 1m²/s, how long will it be before CO concentration has dropped to 100ppm, which is considered safe for brief exposure periods? Answer: 179 seconds (or 3 minutes)
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