| Title |
A Reaserch on the Performance Verification of Energy Storage Mortar Enhanced in Thermal Efficiency and Strength by Applying Microencapsulated Phase Change Materials and Nanomaterials |
| DOI |
https://doi.org/10.12652/Ksce.2024.44.4.0433 |
| Keywords |
상변화 물질;다중벽탄소나노튜브;고효율 열저장 시멘트 복합체;마이크로캡슐 PCM;MWCNT;High-efficiency thermal storage cement composite;Microcapsule |
| Abstract |
This study aims to prevent freezing of existing domestic buildings by developing an energy storage mortar with increased energy efficiency that can reduce the increase in carbon emissions and maintenance costs due to external energy use due to heat wires in civil engineering and buildings with embedded heat wires. I suggest. Research has focused on incorporating phase change materials (PCMs) into common cement composites to provide latent heat performance. However, concrete mixed with phase change materials shows problems such as leakage of phase change materials, decreased strength, and insufficient thermal performance. To overcome this problem, we encapsulate phase change materials using microcapsules and mix them into cement composites to minimize strength loss and leakage, and use multi-walled carbon nanotubes and silica fume to minimize the strength reduction of concrete. A heat storage cement composite was developed. When high-efficiency heat storage cement was used as a replacement for ordinary cement composite in an environment where heat wires were buried, the effect was shown to reduce energy by about 42 %, and compared to a cement composite containing only PCM, the compressive strength and bending strength were 18 % and 23 %, respectively. was improved and its effectiveness was proven. |