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.
In this example, our pre-image is triangle ABC, and it is dilated to produce the image of triangle A'B'C'. Knowing the scale factor allows you to predict what the image will look like after the dilation. If the absolute value of the scale factor is less than 1, then the image will be smaller than the pre-image. If the absolute value of the scale factor is greater than 1, then the image will be larger than the pre-image.