The purpose of this study is the development of the latent heat storage system using erythritol as a latent heat storage material. In this study, the direct contact melting and solidification behaviors of erythritol were visualized in order to investigate the heat storage and release characteristics of erythritol. The experimental results show that the melting and solidification characteristics of erythritol were influenced with the heating medium (oil) temperature and velocity. And the heat release speed influenced flowing quantity of oil and height of erythritol, there may be a limit in high-speed heat release experiment.
