The heat transfer rate per unit area is proportional to the temperature gradient gradient along the length of the brass rod and co- efficient of thermal
The apparatus consists of Heat exchanger tube made of copper with steel coating and is thermally insulated outside to prevent heat losses to the atmosphere
Aim To determine the thermal conductivity of a metallic rod 1 2 Prior Knowlwdge: Phenomenon of heat conduction in metals, Fourier law application to plane
Heat always transfers from warmer objects to cooler objects This method of heat transfer is called conduction The heat energy of a section of the rod changes
a) To measure the temperature gradient along the length of the metal (copper) The heat transfer rate per unit area is proportional to the temperature
To determine the thermal conductivity of metal by method of heat transfer in The temperature of the metal rod is measured at six positions by using
Heat flow is one-dimensional i e temperature, varies along x-direction only other end of the rod for heat conduction study with a view to fulfilling
Determine which colour is the best absorber of heat Method Conduction Experiment Metal Rods Experiment 1 Set up the apparatus as shown in the diagram
a) To measure the temperature gradient along the length of the metal (copper) The heat transfer rate per unit area is proportional to the temperature gradient
1 2 Prior Knowlwdge: Phenomenon of heat conduction in metals, Fourier law application Variation of thermal conductivity at different section of metal rod and heat loss in radial The bar is analysed at two sections along its length ( Figure 3)
Table 2 1: Thermal conductivity at room temperature for some metals and non- metals HT-7 Table 2 2: Utility of Figure 2 1: Heat transfer along a bar
A long carbon steel rod of length 40 cm and diameter 10 mm (k = 40 w/mK) is placed in such that one of its end is 400o C and the ambient temperature is 30o C