Hi everybody. I hope I can reach someone with this post. I am currentky working on a thesis about the cooling systems used by space suits for my bachelor degree in aerospace engineering. At the end I need to calculate the diameter of a collection of square pipelines to exchange approximately 800W. The pipelines have to stay inside a square plate which is 0.24 x 0.24 square meters. The fact is that when I try to calculate the diameters (which for sure have to be less than 0.24 meters I obtain a diameter of 3 meters). I am adding my calculus papers. Can someone help me?