Abstract
In this paper, the supercooling duration of promising phase change material (erythritol) in a glass tube was investigated for the degree of supercooling from about 40 to 100 ℃. The melting point of erythritol is 118℃ and the latent heat is 340 J/g. The specimen volume was varied from 0.025 to 16 cm^3. The volume of erythritol is varied using different diameters of the glass tube from 1.02 to 27.3 mm. As a result, supercooling duration was distributed from 3000 min to 20000 min when degree of supercooling was 48 ℃. In addition, it was found that the supercooling duration was decreased with increasing degree of supercooling.
