About the book
Paraffin wax is a petroleum derivable soft solid (crude oil) composed of a mixture of hydrocarbon molecules containing between twenty and forty atoms of carbon. Paraffin waxes are mixtures of saturated n- and iso-alkanes, naphthenes and aromatic compounds which are substituted by alkyl and naphthene. A typical chemical composition of alkane paraffin wax contains hydrocarbons with the general formula CnH2n+2 .
Paraffins are found in nature in large quantities, but can also be synthetically produced, and are generated as by-products in the production of other natural substances. Control a strong market even because of its limited end-use.
Paraffin waxes were used in different ways according to their characteristics such as chemical stability, non-poisonous, no phase separation with only a slight volume shift during phase transformation with a negligible degree of sub-cooling and complete thermal stability.
The storage and management of thermal energy was seen as a prospective technology for efficient energy regulation and utilization. Phase change materials (PCMs), latent heat energy storage materials, can store and release significant quantities of waste heat energy during their phase transition; thus, they have enormous potential for efficient heat energy use.
Because of their low costs, high latent heat and proper thermal characteristics such as little to no supercooling, low vapor pressure, self- behaviour, paraffin has been commonly used for energy storage applications. The type of shape-stabilized or structure-stable composites must be formed by injecting paraffin into porous materials as the supporting matrix in order to preserve the shape of paraffin and avoid leakage of the melted paraffin.
This book focuses on thermal energy storage. In particular, the commonly used materials at high temperatures, molten salts and concrete. Also the focus is on the most promising materials with paraffin such as; carbon nanotubes/ paraffin, Nano powder/ paraffin, by-products / paraffin and clay/paraffin in for thermal energy storage.