Objective
To determine the thermal conductivity of the insulating material and plot the radial temperature distribution in the cylinder.
Diameter, d1 = 45mm, d2 = 75mm
Length of pipe = 500mm
Set voltage
Qin(W)
10
Temp1(°C)
10
Temp2(°C)
10
Temp3(°C)
10
Temp4(°C)
10
Temp5(°C)
10
Move the cursor to the graph to see the points
$$T_i = \frac{(T_1 + T_2 + T_3)}{3}$$
$$T_o = \frac{(T_4 + T_5)}{2}$$
Radial temperature distribution
$$\frac{T - T_1}{T_2 -
T_1}=\frac{ln(r/r_1)}{ln(r_2/r_1)}$$
Effective thermal conductivity
$$K = \frac{Q_{in}.ln(r_2/r_1)}{2.π.l.(T_i - T_o)}$$
$$K_{eff} =$$
$$W/m.K$$
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