Hi, I am currently doing my final year project in college. I am using a copper pipe which is 8m long with 8.5mm ID and 10mm OD. The pipe is bent into a coil which will be placed inside a acrylic box. The aim is to pump water through the coil to get the box to a desired temperature. At the moment I am trying to characterise the coil. For testing, the coil is left out of the box and is subject to ambient air temperature of ~20 degrees. I need to know the relationship between temperature transfer from the coil i.e. power output from the coil when different flow rates and water temperatures are applied. Any help would much be appreciated. I need to develop a transfer function that can be implemented into a Simulink model.