According to several suppliers' websites of gas detectors, a catalytic bead sensor must be installed vertically with the gas sensor pointing towards the ground.
If the gas sensor is not mounted in this way, they say, the gas sensor may not work correctly.
But why is this?
And is a horizontally...
Hi all,
I'm fairly new to the industry. Now my employer wants me to write an essay/article about a subject I am willing to look into. Kind of a small specialization. But I can't find something interesting myself. I'm look into the field of fire risk engineering in chemical, petrochemical...
I've done a fan test for a automatic fire extinguishing system with IG55 following the NFPA 2001, appendix C, enclosure integrity procedure.
Known data
CO2 quantity: 22,8 kg
Real concentration: 43%
Volume room: 29 m³
Max height room: 3,25 m
Minimal concentration: 38%
Temperature in the room...
Hi all,
I don't know how to calculate following problem:
Problem:
I have a room with a certain concentration of CO2. There is a leak which causes the concentration to fall over time.
Known:
CO2 concentration start = 43.0%
CO2 concentration after 10 minutes = 22.2%
CO2 concentration air...
Hello,
I'm having difficulties calculating the time to reach a certain temperature caused by radiation. I cannot find any method to get time into my calculations.
Any help?
Specific problem:
Double-walled tank with the outer wall at 700 °C. How long does it take for the inner wall to reach...
