Thermal Performance Enhancement of Phase Change Materials for Energy Efficient Building Applications

I Made Astika; I Ketut Suarsana; I Nyoman Budiarsa; Dewa Ngakan Ketut Putra Negara

doi:10.55927/fjmr.v5i9.186

Authors

I Made Astika Udayana University
I Ketut Suarsana Udayana University
I Nyoman Budiarsa Udayana University
Dewa Ngakan Ketut Putra Negara Udayana University

DOI:

https://doi.org/10.55927/fjmr.v5i9.186

Keywords:

Phase Change Material, Thermal Performance, Latent Heat Storage, Cooling Load, Energy-Efficient Buildings

Abstract

Increasing cooling demands in buildings have encouraged the development of phase change materials (PCMs) with improved thermal performance. This study investigated four PCM formulations using 12 independently prepared samples combined with building thermal simulations. The evaluation covered thermal conductivity, latent heat capacity, thermal stability, indoor temperature, cooling load, and energy consumption. Statistical analysis involved descriptive methods, Shapiro–Wilk and Levene’s tests, one-way ANOVA, and Tukey’s HSD test. The medium-additive formulation achieved the best balance, with thermal conductivity of 0.281 W/m·K, latent heat capacity of 183.9 J/g, and heat retention of 99.1%. It reduced indoor temperature by 2.4°C, peak cooling load by 17.2%, and energy consumption by 14.3%.

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