Assuming you mean "Adrenaline", which is a hormone our body produces in a 'flight or fight' situation. Here are a couple of links you might find interesting:
Epinephrine - Wikipedia, the free encyclopedia
Approach to Weight Loss by Dr. William Nelson
Hormones and Weight Loss by Greg Landry: The Sideroad
Epinephrine is another name for Adrenaline, it appears to be an appetite suppressor (second link) that stimulates the break down of fat, in stored fat, as well as in active muscles (third link). Anyway, I knew nothing about the topic before hand, but from what I understand the energy does not come from the burning of fat, but rather by the fact that the blood pumps directly to where its needed.
Feel free to correct me if I'm mistaken, like I said, I'm no expert. Just doing a little research, feel free to do the same.
Take care.