THERMAL CONDUCTIVITY OF LIQUID
| The apparatus mainly consists of guarded hot plate assembly to measure thermal
conductivity of liquid.
The container in which, the assembly is kept well insulated using thermal insulation,
and the necessary instrumentation for measurement & control of voltage, current &
One top guard and second ring guard heaters are provided to stop heat leaking from
the main heater and what ever heat is generated in the main heater passes through
the liquid layer and goes to the cooling chamber.
In this way longitudinal transfer of heat in conduction mode is ensured which
qualifies the computation of thermal conductivity.
| To determine the thermal conductivity of a given liquid sample using guarded hot