You are interested in experimentally finding the convection coefficient (h) for a heat exchanger surface. The heat exchanger is a large metal solid cylinder made of aluminum. The heat is generated at the heater end and the heat exits from the circular surface penetrating the room wall as shown in the figure. You have a fan that blows air parallel to the heated circular surface. You are interested in finding the "h" value for this surface with the given air circulation. If you know the steady state heat transfer through the cylinder (in watts or BTU/hr), it is easy to compute the "h" value. However, you do not know that. You can also compute the "q" from the electrical wattage and using an efficiency factor (to convert electrical watts to heat watts). However, as the heater cycles on an off (based on the heat requirement), you cannot accurately quantify the steady state energy consumption of the heater. Plus, the heater heats the other parts of the setup and some is heat is lost from the heater itself. So you have decided to use 2 thermocouples to read the temperatures at two different locations on the solid cylinder (P1 and P2