## 3 Results and Discussion
### Validation of the Results  
The study's findings were further validated and enriched through a comparison with the conclusions of a reference paper [56] that focused on the use of environmentally friendly phase change materials (BioPCMs). This reference study conducted an in-depth analysis of the energy reduction capabilities of various BioPCMs, each with distinct enthalpy-temperature curves, and examined their effectiveness across a spectrum of metabolic rates. Key aspects of the reference study [55] include the following:  
Selection of BioPCMs: The study utilized BioPCM M182/Q21, BioPCM M182/Q23, BioPCM M182/Q25, and BioPCM M182/Q27. Each of these BioPCMs has a unique enthalpy-temperature curve, which was crucial in determining their effectiveness in reducing energy consumption.  
Heating and Cooling Needs: The first two BioPCMs (M182/Q21 and M182/Q23) were particularly effective, fully meeting the building's heating requirements. They also contributed to cooling, with impact rates of 23.4% and 22.1% energy reduction, respectively.  
The findings from the reference paper corroborate and expand upon the results of the study, offering a broader context and a deeper understanding of the efficacy of BioPCMs  
\begin{table}
\begin{tabular}{l c c} \hline \hline \multirow{2}{*}{**Energy Intensity**} & **Baseline Building Model** & **PCM-Incorporated Building Model** \\ \cline{2-3}  & \multicolumn{3}{c}{**Energy Use Intensity [kWh/m\({}^{2}\)/Year]**} \\ \hline \multicolumn{3}{c}{PCM-Incorporated building model in Amman} \\ \hline Energy intensity per conditioned floor area & 147.03 & 117.42 \\ \hline Energy intensity per total floor area & 132.10 & 105.50 \\ \hline HVAC energy intensity per conditioned floor area & 91.14 & 61.53 \\ \hline HVAC energy intensity per total floor area & 81.89 & 55.28 \\ \hline \multicolumn{3}{c}{PCM-Incorporated building model in Irbid} \\ \hline Energy intensity per conditioned floor area & 155.08 & 124.41 \\ \hline Energy intensity per total floor area & 139.33 & 111.77 \\ \hline HVAC energy intensity per conditioned floor area & 99.19 & 68.52 \\ \hline HVAC energy intensity per total floor area & 89.12 & 61.56 \\ \hline \multicolumn{3}{c}{PCM-Incorporated building model in Aqaba} \\ \hline Energy intensity per conditioned floor area & 143.09 & 132.36 \\ \hline Energy intensity per total floor area & 128.55 & 118.91 \\ \hline HVAC energy intensity per conditioned floor area & 87.20 & 76.47 \\ \hline HVAC energy intensity per total floor area & 78.34 & 68.70 \\ \hline \multicolumn{3}{c}{PCM-Incorporated building model in Oradea} \\ \hline Energy intensity per conditioned floor area & 181.40 & 171.50 \\ \hline Energy intensity per total floor area & 162.97 & 154.08 \\ \hline HVAC energy intensity per conditioned floor area & 123.66 & 113.76 \\ \hline HVAC energy intensity per total floor area & 111.10 & 102.20 \\ \hline \hline \end{tabular}
\end{table}
Table 7: Energy use intensity (EUI) of the PCM-incorporated building compared with the baseline building in Amman, Irbid, Aqaba, and Oradea.  
in energy conservation. The comprehensive analysis in the reference study reinforces the conclusion that integrating BioPCMs into building envelopes can significantly boost energy efficiency. This comparison validates the methodology and results of the study and highlights the potential of BioPCMs in real-world applications. It emphasizes their adaptability to different human occupancy conditions and their capability to effectively balance heating and cooling demands.