Calculate enthalpy value
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Assume that at Changyi No.1 Middle School, 203 degrees are drawn out with 166 degrees returning, resulting in a flow rate of 200 tons; at Changyi No.2 Middle School, 285 degrees are drawn out with 205 degrees returning, giving a flow rate of 196 tons. At the top circulation stage, 145 degrees are drawn out with 110 degrees returning, again with a flow rate of 200 tons. For the reflux at the top of the tower, 104 degrees are drawn out with 30 degrees returning, resulting in a flow rate of 45 tons. How should the heat extraction ratios for each section be calculated?
As a rough estimate, it can be assumed that the specific heat capacity of various types of oils is the same. With Cp being constant, it is possible to roughly calculate the proportion of heat absorbed. The Cp values are similar enough to be considered the same.