Infiltration of air into a flare system can lead to flame. burnback (also called flashback), which can initiate a. destructive detonation in the system. Burnback is one of. the primary modes of premature failure of a flare tip, and. can often be observed only at night. Air can enter the flare. system in one or more ways: through the stack exit by. buoyant exchange, wind action, or contraction of gases. due to cooling; through leaks in piping connections; or as.
Scale factor. The amount by which the image grows or shrinks is called the Scale Factor. Experiment with the scale factor slider to gets a feel for this idea. 1  If the scale factor is say 2, the image is enlarged so its dimensions are twice the original. 2  If it is 0.5, the image is reduced, with its dimensions half the original. 3  When the scale factor is 1, the image is the exact same size as the original.
The integer 0 will be used to represent â1.50 g/min, and the integer 5000 will be used to represent a mass flow rate of 3.50 g/min.Calculate the scale factor as follows:Refer to Figure IS-2. The mass flow rate ranges from â150 to +500 g/min.he scale factor is a ratio that converts the process variable range to the scaled integer range. The default scale factor is 1.1. Use the following equation to calculate the scale factor:where: - x1 = Lower range value (LRV) of process variable.