DETERMINATION OF HEAT CAPACITY AND HEAT CONDUCTIVITY COEFFICIENT OF PHASE TRANSITION MATERIALS USING THE T-HISTORY METHOD

Abstract

It is known that the demand for energy in the world is increasing, traditional fuel
resources are not evenly distributed on the globe, and the negative impact of carbon dioxide gases
on the environment is high when using them. Today, determining the relative heat capacity of
substances that increase the possibilities of using solar energy and accumulate the obtained energy,
as well as the use of phase change materials for solar devices is an effective way to prevent energy
shortages.
In this article, the specific heat capacity and heat transfer coefficient of paraffin, which is one
of the phase change materials, in liquid and solid state, is determined by the results obtained during
experiments in laboratory conditions, as well as theoretical calculations.
In this article, as a result of experimental research conducted by the authors in laboratory
conditions, the thermal properties of phase change material (PCM) were determined using the Thistory method. In this case, methods of experimental research of heat capacities of substances,
determination and calculation of heat-technical parameters were used.