Abstract
Problems with overheating and unstable temperature of industrial equipment are the reasons for generating significant costs that for companies. Solving the problems related to heat removal is a challenge in modern industry. Phase change materials are the solution to these challenges (PCM). These substances can accumulate and release large amounts of thermal energy during the phase change transition. The value of the phase transition enthalpy determines the energy storage capacity. The paper presents the results of phase transitions of selected materials. The measurements were carried out on a stand for testing phase change materials. The laboratory stand made it possible to determine the thermodynamic parameters of the phase transition. The substances analysed are kinds of paraffin of different chemical composition. Due to the diversity of substances, it is possible to analyse the influence of the chemical composition on possible uses in industrial applications for energy storage.
Highlights
Heat flow is a way of transferring energy to a thermodynamic system
The problem of heat storage is faced with phase-change materials (PCM)
A common problem with organic PCM is the need for large temperature variations to achieve a phase change
Summary
Heat flow is a way of transferring energy to a thermodynamic system. The interaction between the system and the environment in the manner of heat flow causes a change in the internal energy of the system. Energy is stored as the system's internal energy level increases. The use of such accumulated energy is accompanied by a decrease in the internal energy level of the system. A necessary condition for the correct and effective use of the heat emission is knowledge of the methods of energy accumulation. The problem of heat storage is faced with phase-change materials (PCM). These substances (chemical compounds) are capable of absorbing, accumulating, and releasing energy
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