Convective heat transfer coefficient of the boiling water

Reference no: EM13309028

An aluminum pan whose thermal conductivity is 237 W/(m K) has a flat bottom whose diameter is 20 cm and thickness 0.4 cm. Heat is transferred steadily to the boiling water through the bottom of the pan. The temperature on the underside of the pan is 105°C; the bulk of the boiling water is at 100°C. The convective heat transfer coefficient of the boiling water is 5,000 W/(m^2 K).

a) Draw a picture showing the dimensions of the pan, heat flowing through the bottom of the pan and the heat transferred from the bottom of the pan to the bulk of the liquid. Show the temperature on the underside of the pan and in the bulk liquid. Label the temperature at the inside bottom of the pan T*. Explain why it is reasonable to assume that the heat flow through the bottom of the pan equals the heat transferred from the bottom of the pan to the bulk liquid.

b) Find equations relating the heat flow through the bottom of pan and the heat transferred from the bottom of the pan to the bulk of the liquid. Both of these equations should contain T* as an unknown. Solve these equations, and find the heat flow and T*. Report T* to 4 significant figures. Show all steps and work.

Reference no: EM13309028

Questions Cloud

Determine the maximum part weight : Determine the maximum part weight in (Problem 23) if the coefficient of static friction is 0.85 and the maximum upward vertical acceleration is 5 feet per second squared. (A bellows gripper has a bellows geometry that includes a center rectangle 0.4 ..

Reaction forces at walls : A bar ABC is held between two rigid walls at point A and C and is subjected uniform distributed force f over region AB. The axial rigidity of the bar is given as EA. Find: The reaction forces at walls.

An aluminum pan whose thermal conductivity : An aluminum pan whose thermal conductivity is 237 W/(m K) has a flat bottom whose diameter is 20 cm and thickness 0.4 cm. Heat is transferred steadily to the boiling water through the bottom of the pan. The temperature on the underside of the pan is ..

Engaged in cutting-edge research in pharmaceutical industry : Your organization is engaged in cutting-edge research in the pharmaceutical industry where competitors are racing against each other to release new drugs in the market. You are almost ready to launch a new drug when you hear that a rival is on the ve..

Convective heat transfer coefficient of the boiling water : An aluminum pan whose thermal conductivity is 237 W/(m K) has a flat bottom whose diameter is 20 cm and thickness 0.4 cm. Heat is transferred steadily to the boiling water through the bottom of the pan. The temperature on the underside of the pan is ..

Estimate the radiant heat transfer from the wire : Toasters, blow dryers, and electric space heaters do their jobs via electric resistance heating: when electricity flows through a high-resistance wire, the temperature of the wire goes up, and heat is dissipated from the wire to the surroundings. A p..

What is the average surface temperature of the chips : A 10-cm long and 20-cm wide circuit board is covered with 100 closely spaced chips, each generating heat at a rate of 0.08 W and transferring it by convection to the surrounding air at 25°C. Heat transfer from the back surface of the board is negligi..

What is the output from the C++ code fragment : What is the output from the following C++ code fragment?

Name a firm that is currently having financial difficulties : Please name a firm that is currently having financial difficulties. what might you suggest to this firm regarding the steps it can take to turn aroud its current situation

User Account

All Pages