Journal
INTERNATIONAL JOURNAL OF THERMOPHYSICS
Volume 39, Issue 7, Pages -Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10765-018-2408-x
Keywords
Heat capacity; Latent heat; Phase-change material; Radionuclide encasement
Funding
- Czech Science Foundation [17-11635S]
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Phase-change materials (PCMs) can store/release thermal energy within a small temperature range. This is of interest in various industrial applications, for example, in civil engineering (heating/cooling of buildings) or cold storage applications. Another application may be the moderation of temperature increases in concrete encasements of radionuclides during their decay. The phase-change behavior of a material is determined by its heat capacity and the peak it exhibits near a phase change. We analyze the behavior of such peaks for a selected PCM at heating rates varying between and , corresponding in real situations to different decay rates of radionuclides. We show that experimentally measured peaks can be plausibly described by an equilibrium theory that enables us to calculate the latent heat and phase-change temperature from experimental data.
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