Open AccessCalorimetric Investigation of Two Factors Influencing the Maximum Storage Capacity of Calcium Chloride Hexahydrate
Author(s) -
Stefan Hiebler,
Dovile Rudaleviciene,
Christoph Rathgeber,
Stefan Hiebler
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/660/1/012076
Subject(s) - differential scanning calorimetry , raw material , enthalpy , hydrate , heat capacity , salt (chemistry) , stoichiometry , chemistry , thermal energy storage , materials science , phase change material , chemical engineering , thermodynamics , phase change , organic chemistry , physics , engineering
CaCl 2 ·6H 2 O is a salt hydrate that is attractive as phase change material (PCM). However, in literature, different values are indicated for its melting enthalpy. Here, two possible influence factors on the maximum storage capacity of CaCl 2 ·6H 2 O are investigated via differential scanning calorimetry (DSC): deviations of the water content from the stoichiometrically correct concentration and different basic raw materials used in the preparation process. While both influence factors are found to have a considerable impact on the maximum storage capacity of CaCl 2 ·6H 2 O, the influence of deviations of the water content is more important than that of the basic raw materials.