What are the basics of a flame arrestor?

The paper provides combustion basics around chemical reaction kinetics, air/gas ratios, flame propagation and development stages and the physics around deflagration and detonation conditions. It highlights selection criteria based on gas velocities, operating pressures, flame stabilization and more.

How big of a gas line do you need for a gas light?

Gas Lines – For gas lights to work properly, the gas line should be no less than 3/8 inch in diameter. If a smaller, 1/4 inch gas line must be used, the gas lie can be no longer than eight feet in length. If your gas line measurements are incorrect, have them corrected by a licensed plumber.

Where does the blue flame from a butane torch come from?

Spectrum of the blue (premixed, i.e., complete combustion) flame from a butane torch showing molecular radical band emission and Swan bands. Note that virtually all the light produced is in the blue to green region of the spectrum below about 565 nanometers, accounting for the bluish color of sootless hydrocarbon flames.

Why does a hydrocarbon flame have different colors?

In the most common type of flame, hydrocarbon flames, the most important factor determining color is oxygen supply and the extent of fuel-oxygen pre-mixing, which determines the rate of combustion and thus the temperature and reaction paths, thereby producing different color hues.

How are flame arresters classified as end of line?

Flame arresters are classified as end-of-line (a) or inline based on the location relative to the equipment they protect, and they may protect against deflagrations (b) or detonations (c). 18 www.aiche.org/cep December 2013 CEP

Why does a gas flame not track back inside the supply pipe?

the gas comes from the pipe through a nozzle, only after which it is mixed with air; the gas in the pipe does not contain enough oxygen to burn. there is also the speed of the flame front, if the speed of the mixture of gas and air is higher than this speed of the flamefront, the flame can not travel back to the nozzle.

What’s the best way to purge a natural gas line?

Thanks. The safest way is to continue to hold the pilot buttom down and bled the air through the little pilot tube. Three full minutes should purge your line. You could also apply a continuous flame to the thermocouple allowing you to bled the air through the gas valve but this results in burnt eyebrows and mustaches sometimes.

How do you clear air from a propane line?

The steady stream of propane pushes all the air through the hose and out into the atmosphere. Turn off the hose once all the air is gone from the hose. Connect your propane line to a grill to burn off the excess propane. Never introduce propane to an open flame that the propane is not regulating.