THE EFFECT OF PHASE CHANGING MATERIALS ON STRENGHT AND THERMAL CONDUCTIVITY IN BUILDING COMPONENTS


Çelik A. İ. , Kayabaşı R. , Şener A.

6th Internatıonal Congress on Engineering, Architecture and Design, İstanbul, Turkey, 17 - 18 December 2020, no.36934, pp.897-905

  • Publication Type: Conference Paper / Full Text
  • City: İstanbul
  • Country: Turkey
  • Page Numbers: pp.897-905

Abstract

Phase-changing materials (PCM) have many uses. One of the important areas of use is to increase the heat retention capacity of building components. Researches are carried out on the heat retention capacities of PCMs to store energy in building components and to ensure building temperature control. The use of PCM in building components has become an important tool for energy saving, since ensuring building temperature control in summer and winter conditions is a situation that requires continuity. This feature provided to the building component provides an improvement in the energy identity of the building. In general researches, the use of macro, micro and nano encapsulated PCM decreases the heat conduction coefficient as it increases the heat retention capacity of the building components, but decreases the strength. However, when the capsule size used in micro capsule applications is reduced to 7 microns and below, it is seen that the strength increases, while the thermal conductivity coefficient continues to decrease. As a result, the compressive strength of the component can change positively or negatively due to the addition of PCM to the building component. However, due to the continuous increase in the PCM ratio of the building component, the heat holding capacity of the building component increases and its thermal conductivity decreases.