Innovative Energy-Efficient Building Research at ASHRAE 2024

Dr. Mariam Itani, Coordinator of the Mechanical Engineering Department, proposed an innovative approach in her new research to enhance building envelope efficiency through the integration of Capric Acid/Hydrophobic Expanded Perlite (CAHEP) with Phase Change Materials (PCMs). This study was successfully presented by Khadija Ramadan, a senior Mechanical Engineering student, at the 2024 ASHRAE Sixth International Conference on Efficient Building Design.

With the rising demand for energy-efficient and sustainable building designs, PCMs have been widely explored for their ability to store and release thermal energy. However, conventional PCMs often face challenges such as leakage, instability, and inefficient heat transfer, limiting their effectiveness. This research addresses these challenges by incorporating CAHEP, a composite material that improves thermal storage capacity and thermal inertia, making it a more reliable and efficient solution for building applications.

Through mathematical modeling and theoretical analysis, the study evaluates the thermal performance, energy consumption reduction, and cost-effectiveness of CAHEP-PCM composites, particularly in Lebanon’s subtropical climate. The findings provide valuable insights for architects, engineers, and builders, supporting the development of sustainable and eco-conscious construction practices.

This presentation aligns with PU’s vision for sustainability and green energy practices, highlighting the significance of innovative materials in energy-efficient construction and contributing to the advancement of eco-conscious building practices.