2024 Volume 49 Issue 322 Pages 1-11
In this study, we modeled the hysteresis with different melting and freezing temperatures, made an unsteady heat conduction model using the solid volume fraction, and conducted a one-dimensional unsteady heat conduction experiment using rubber compounded with Microencapsulated PCM (MEPCM). We performed verification by examining the temperature distribution inside in detail. Consequently, the computational model agreed with the experimental values. In contrast, there was no difference between the constant latent heat flux model and the latent heat flux triangular model as latent heat models. In addition, we performed unsteady heat conduction calculations using the start and end temperatures of melting and freezing when DSC’s temperature rising and falling rate is 0.5 °C/min, 5 °C/min, and 10 °C/min, respectively, but we found no significant difference. However, in PCM, where the heating and cooling rate greatly affects the melting temperature and freezing temperature reading, it is desirable to set the temperature to approximately 0.2 °C/min.
