“…The theoretical research on the thermal performance of building envelopes shows that the heat capacity of PCM envelopes is close to that of ideal envelopes (Zhang et al, 2013), while traditional building materials are far away. The previous research on PCM envelopes can be summarized as follows: the preparation of PCMs or PCM components and the improvement of thermal performance of PCM envelopes (Harish et al, 2017; Zhang et al, 2018); finding the best combination ways between PCMs and envelopes (Diaconu and Cruceru, 2010; Xie et al, 2016; Yang et al, 2018); the numerical study on heat transfer characteristics of PCM envelopes (Kong et al, 2014; Kuznik et al, 2015); the experimental study on heat transfer characteristics of PCM envelopes and their practical applications (Duraković, 2020, 2020, 2020; Duraković and Mešetović, 2019; Farhat and Inal, 2019; Findik and Ermi, 2020; Niu et al, 2023), etc.…”