February 21, 2017

Homework Help: Material Science

Posted by Joy on Saturday, August 24, 2013 at 7:13pm.

A polystyrene ice chest contains 3 kg of ice at 0 degrees Celsius. Triangle H for melting = 3.34 x 10 to the 5 power J/kg p = 1000 kg/m cubed, CP =4190 J/ (kg K). Heat transfer is limited by conduction (k=0.06W/m K)) from the outside wall at 30 degrees Celsius. This means that temperature within the ice chest is not a function of position. Assume the heat flux (J/(sec m squared) is the same through all walls: top, sides, bottom. The walls have thickness = 4 cm and total surface area = 2400 cm squared.

Calculate heat flux (J/ (sec m squared) at the walls.

Answer This Question

First Name:
School Subject:

Related Questions

More Related Questions