please solve this question

Since the external emission of carbon dioxide generated during the operation of the power plant is environmentally harmful, there is an absorption tower/renewable tower device that is removed during the process. Carbon dioxide entering the absorption tower after power plant operation is removed by dry absorbent grains present in the absorption tower while passing through the absorption tower. In general, since the carbon dioxide absorption process by the absorbent in the absorption tower is a heat generation process, the generated heat must be removed by passing cooling water through a tube-shaped cylindrical tube inside the absorption tower. However, when the moisture present in the absorption tower stays and contacts the surface of the coolant tube in the absorption tower, the reaction occurs that the absorbent is stuck outside the tube. Since heat exchange between the heat transfer pipe and the regeneration tower does not occur smoothly due to fixation, it is important to determine how much fixation has been made and remove it. Problem: Since it is not possible to directly predict the heat transfer coefficient (thermal conductivity, k) of the stuck absorbent, it is necessary to calculate the heat transfer coefficient by measuring T1 and T3 in Experiment 1 and T1 and T3 in Experiment 2. Define the epidural coefficient and surface area of the atmosphere and derive the formula.