TY - JOUR
TI - Preparation and steady-state heat transfer characteristics analysis of building insulation phase change composite material
AU - Liu Chengcai
JN - Thermal Science
PY - 2024
VL - 28
IS - 2
SP - 1329
EP - 1336
PT - Article
AB - The compatibility of Ba(OH)2•8H2O with aluminum alloy and copper after 50  heating cycles was studied using SEM and high power X-ray diffraction  technique. Analyze the effect of temperature on thermal stability. The  results show that Ba(OH)2•8H2O has some corrosion resistance to aluminum  alloys and is similar with copper. The Ba(OH)2•8H2O/foam copper phase  transition composites were prepared by a simple vacuum adsorption filling  method. The experimental process of phase change energy storage device with  and without copper foam was established, and the continuous heat transfer  and transformation of Ba(OH)2•8H2O/foam copper phase change composites were  carried out at room temperature. The results show that compared with pure  Ba(OH)2•8H2O, Ba(OH)2•8H2O/foam copper phase converter has faster heat  transfer and better thermal conductivity, effectively reducing the  supercooling effect of Ba(OH)2•8H2O. Heat transfer experiment at high  temperature shows that the heat capacity of Ba(OH)2•8H2O/foam copper phase  changes with the increase of temperature. When the temperature of the zone  is higher than the material phase changes in temperature, some insulation  measures should be taken for phase shifting components.