Latent Heat Thermal Energy Storage in the Temperature Range 20 to 80 exp 0 C

摘要

After some introductory remarks on the necessity of heat storage - in particular for solar systems and the desired characteristics of a store, the latent heat energy (LTES) store is described as an example. The first chapter discusses the physical fundamentals of LTES (theory of crystallization, phase diagrams, nucleation, technological problem). The second chapter deals with suitable materials, their melting and solidification characteristics, typical heat-up and cooling-down curves, and thermal cycling. The third chapter reports on heat exchangers and their effects on the functioning of the whole system and also discusses experimental results. The appendix contains a comparison between thermal energy storage in water or rocks and latent heat thermal energy storage. (ERA citation 05:013635)