ENERGY PERFORMANCE CONTRIBUTION OF THE APPLICATION OF PHASE CHANGE MATERIALS TO BUILDING WALLS


Özdemir H., Çetin B.

5TH INTERNATIONAL CONFERENCE ON ADVANCES IN MECHANICAL ENGINEERING ISTANBUL 2019 , İstanbul, Türkiye, 17 - 19 Aralık 2019, ss.1-7

  • Basıldığı Şehir: İstanbul
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayısı: ss.1-7

Özet

As it is known, if the consumption rate continues in the same way, oil will be exhausted after 50-60 years and coal will be exhausted after 100-150 years. For this reason, many studies are carried out to minimize energy consumption and use of renewable energy resources. In this study, it is aimed to increase the efficiency of heating and cooling systems as a result of the application of PCM to the building walls. It was used to decrease the heating and cooling load in a test room which was formed by evaluating isothermal behavior of PCM and high volumetric storage properties. The results of the experiment showed that the melting point of the phase-changing substance in the building and the melting point contributed positively to the energy saving as a result of thermal energy storage. When selecting PCM, it is necessary to determine the most suitable melting point, thermal property and encapsulation method. It is performed for the phase change substance in microencapsulated PCM capsule to obtain a more suitable environment for the transfer of heat.  In this study, microencapsulated PCM was used. When the test chamber was empty and the PCM agent was used, comparisons showed that micro-capsulated PCM has been determined that it contributes about 5-10% cooling load in the summer and 10-20% of heating load in in winter period. According to this study, the obtained values and graphs were found to be consistent with the literature. As a result, the application of PCM to the building walls will help us to save on fossil fuel and electricity consumption, domestic resources will be used more efficiently and reduce dependence on foreign sources. However, investments will be reduced and environmental savings will be achieved by decreasing emissions.