Polyvinyl Alcohol-salt Hydrate Mixtures as Passive Thermal Energy Storage Systems

摘要: Abstract Inorganic salt hydrates are promising candidates as latent heat storage materials entailing, for example, a high thermal energy density and cheap price [1] , [2] in spite that they have many handicaps. For almost all applications, Phase change (PCMs) to be encapsulated, is, hermetically sealed within barrier containments, preferably small microcapsules. Encapsulation improves transfer, cycling stability, material compatibility with the environment. However, no attempt has been completely successful microencapsulate so far due surface polarities of these substances, edge alignment effects, their tendency alter water content [3] . This work is aimed encapsulate some commonly used hydrates; sodium sulphate decahydrate (Na2SO4.10H2O) calcium chloride hexahydrate (CaCl2.6H2O) hydrophilic polymer; polyvinyl alcohol (PVA) stably passive systems. So an economically beneficial application mean will validated.