I would like to determine the heat transfer rate from an insulated, uncovered, cylindrical tank. The liquid in the tank will be pre-heated and there is no continuous heating. The tank will be outdoors at varying ambient temperatures (from -20 to +30 degC). I will assume no wind. The liquid will be a 7% KCl solution. I want to calculate time for the liquid temperature to reach 40C given initial heating to each of 45, 50, 55degC. I am waiting on the tank specs (size, insulation, etc)
I have discarded my ChE heat transfer textbook and it has been 10 years since I've done this type of calculation. Can someone please advise the formulas I need to use?
Thanks.