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Energies 2022, 15, 6356 17 of 20 Energies 2022, 15, x FOR PEER REVIEW 3.1.5. TL Evaluation 19 of 22 19 of 22 Energies 2022, 15, x FOR PEER REVIEW regimes and was, therefore, the better choice among all the test configurations. TL is a The configuration RT28HC–RT21HC showed a relatively high TL for all temperature measure of a PCM’s ability to shift the peak load to off-peak load if a large value of TL is measure of a PCM’s ability to shift the peak load to off-peak load if a large value of TL measure of a PCM’s ability to shift the peak load to off-peak load if a large value of TL is present. RT21HC–RT21HC performed best in the LTH environment, as expected, but it present. RT21HC–RT21HC performed best in the LTH environment, as expected, but it is present. RT21HC–RT21HC performed best in the LTH environment, as expected, but had limited scope at relatively high thermal loads, whereas the TL values for hybrid con- had limited scope at relatively high thermal loads, whereas the TL values for hybrid con- it had limited scope at relatively high thermal loads, whereas the TL values for hybrid figuration RT28HC–RT21HC indicated that it was an appropriate option across a range of figuration RT28HC–RT21HC indicated that it was an appropriate option across a range of configuration RT28HC–RT21HC indicated that it was an appropriate option across a range thermal loads in a variety of hot weather conditions. It particularly outperformed all othfethrmeramllaolaldosadinsianvaavriaertyietoyfohfohtowtewatehaetrhceorncdointidointsio.nIts.pIatrtpicaurtlaicrulylaorulytpoeurftopremrfeodrmaleldall PCM-based configurations in HTH with the highest time lags of 5.72 h and 5.50 h in con- PCM-based confifigurationsinHTHwiitthttheehiigheessttttimimeelalaggssooff55.7.722hhaanndd55.5.500hhininccoonn-crete crete and cement block configurations, respectively. Values of TL in all three temperature acnredteceamndenctembleonctkbclonckfigcounrafitgiounrast,iroenssp,ercetsipvecltyi.vVelayl.uVesaloufeTsLofinTLalilntharlletehtreme tpeemrapteurraetureregimes regimes for concrete and cement block samples are shown in Figures 16 and 17, respec- froergcimonecsrfeotrecaondcrceetme aendtbcleomceknstabmlopclkesamrepslhesowarne sinhoFwignuirnesFi1g6uarensd1167a,nredsp17e,crtievsepleyc.- tively. tively. Figure 16. TL values for concrete-only samples and samples with integrated PCMs. Figure 16. TL values for concrete-only samples and samples with integrated PCMs. Figure 16. TL values for concrete-only samples and samples with integrated PCMs. Figure 17. TL values for cement-block-only samples and samples with integrated PCMs. Figure 17. TL values for cement-block-only samples and samples with integrated PCMs. Figure 17. TL values for cement-block-only samples and samples with integrated PCMs. 4. Conclusions 4.. Conclusions An experimental investigation to examine the effectiveness of hybrid or dual PCMs AnexperiimeenntatallininvvesetsitgiagtaiotinontoteoxeaxmaimneintheetheeffecftfievcetniveessneosfshoyfbrhiydborriduoarldPuCaMlPsCMs integrated into construction materials for thermal energy storage applications was under- integrated into construction materials for thermal energy storage applications was under- integrated into construction materials for thermal energy storage applications was under- taken. Based on this study, the following conclusions were drawn: taken. Based on this study, the following conclusions were drawn: taken. Based on this study, the following conclusions were drawn: 1. Integration of PCMs with different melting temperatures not only covers a larger 1. Integration of PCMs with different melting temperatures not only covers a larger temperature range in external thermal loads but can also be a solution for applica- 1. Integration of PCMs with different melting temperatures not only covers a larger temperature range in external thermal loads but can also be a solution for applica- tions in buildings throughout the year as heating and cooling requirements for ther- tions in buildings throughout the year as heating and cooling requirements for ther- temperature range in external thermal loads but can also be a solution for applications mal comfort change because of weather change; mal comfort change because of weather change; in buildings throughout the year as heating and cooling requirements for thermal 2. TcohmeifnonrtovchatainvegedbeseicganuosefdoufawlePaCthMesr,cshuacnhgaes;RT28HC–RT21HC,incomparisonto 2. The innovative design of dual PCMs, such as RT28HC–RT21HC, in comparison to 2. RTTh2e8iHnCno–RvaTt2i8vHeCdeasnidgnRTo2f1dHuCa–lRPTC2M1HsC, swucahs taestRedT.2P8eHakCt–eRmTp2e1rHatuCr,eivnacluoemspinatrhiseon to RT28HC–RT28HC and RT21HC–RT21HC was tested. Peak temperature values in the RT28HC–RT28HC and RT21HC–RT21HC was tested. Peak temperature values in thePDF Image | PCM-Integrated Building Construction
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