Hello everyone. I have a horizontal storage tank carrying high level liquid waste which produces a certain amount of constant heat due to decay. The liquid waste occupies 80% of the total volume and needs to be maintained at 50 degree©. I want to design a cooling coil whose inlet and outlet water temperatures are known. The tank dimensions, dirt factor and pipe diameter is known. How do I calculate the length of piping required and transient heat analysis when cooling water is cut off and is resumed.
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Piping In Storage Tank
Started by partik1712, Jul 17 2018 06:05 AM
heat transfer pipes storage tank piping system
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#1
Posted 17 July 2018 - 06:05 AM
#2
Posted 20 July 2018 - 10:04 AM
The heat transfer when water is flowing is easy. You need to calculate the heat transfer coefficients on either side (hi and ho) in order to get a U value. You will also need to assume the fouling factors. Then it is a simple (Q = UA∆T) calculation to get surface area. Any heat transfer textbook lays this out.
The transient case is more difficult. You could do this stepwise in a spreadsheet or MathCAD, but it becomes very involved. An FEA/CFD model would be more accurate.
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