Due to the growth of the population on Earth, better comfort, and the standard of living of people, the use of energy is increasing. Since heat is a by-product in many processes, it would make sense to use this heat as efficiently as possible. Due to the relatively high energy density and the increasing attention that these storage devices are receiving we decided to make a latent heat storage device. We used heaters to heat the medium - the water - which we fed into the reservoir. Then, after filling, the storage tank was emptied using cold water, and the stored heat was measured. In a heat storage tank that contains PCM instead of water, the amount of stored heat per volume is about six times greater. The high energy density could be used to regulate temperature or store excess heat.
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