PMID- 36769971 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230213 IS - 1996-1944 (Print) IS - 1996-1944 (Electronic) IS - 1996-1944 (Linking) VI - 16 IP - 3 DP - 2023 Jan 20 TI - Thermal Regulation Performance of Shape-Stabilized-Phase-Change-Material-Based Prefabricated Wall for Green Grain Storage. LID - 10.3390/ma16030964 [doi] LID - 964 AB - In order to meet the great demand for green grain storage and low carbon emissions, paraffin, high-density polyethylene (HDPE), and expanded graphite (EG) were used to produce shape-stabilized phase change material (SSPCM) plates, which were then used to reconstruct building walls for existing granaries. A new type of SSPCM plate was then prefabricated with different thermal conductivities and a high latent heat. This plate could be directly adhered to the existing granary walls. In order to evaluate the thermal regulation performance of these phase change granary walls, experiments and numerical methods were established, specifically for the summer condition. The thermal behavior of the SSPCM granary wall was compared with that of the common concrete granary wall to obtain the optimal parameters. It was concluded that increasing the thickness of the SSPCM layer can reduce the temperature rise of the wall. However, the maximum latent heat utilization rate and energy storage effects were obtained when the SSPCM thickness was at an intermediate level of 30 mm. The thermal conductivity of the SSPCM had a controversial effect on the thermal resistance and latent heat utilization behaviors of the SSPCM. Considering the temperature level and energy saving rate, a 30 mm thick SSPCM plate with a thermal conductivity of 0.2 W/m.K provided a superior performance. When compared to the common wall, the optimized energy-saving rate was greatly enhanced by 35.83% for the SSPCM granary wall with a thickness of 30 mm and a thermal conductivity of 0.2 W/m.K. FAU - Zeng, Changnv AU - Zeng C AD - School of Civil Engineering, Henan University of Technology, Zhengzhou 450001, China. FAU - Hu, Chaoxin AU - Hu C AD - School of Civil Engineering, Henan University of Technology, Zhengzhou 450001, China. FAU - Li, Wanwan AU - Li W AD - School of Civil Engineering, Henan University of Technology, Zhengzhou 450001, China. LA - eng GR - 212102110027/Henan Province Key Specialized Research and Development Breakthrough Plan/ GR - 222103810075/Henan Province Joint Fund Project of Science and Technology/ GR - 222102520030/Henan Province Key Specialized Research and Development Breakthrough Plan/ GR - 24400009/Henan Key Laboratory Open Fund Key Project/ GR - 2022ZKCJ07/The Innovative Funds Plan of Henan University of Technology/ PT - Journal Article DEP - 20230120 PL - Switzerland TA - Materials (Basel) JT - Materials (Basel, Switzerland) JID - 101555929 PMC - PMC9918206 OTO - NOTNLM OT - green grain storage OT - heat transfer characteristics OT - prefabricated SSPCM granary wall OT - thermal conductivity COIS- The author declares no potential conflict of interest regarding the publication of this article. EDAT- 2023/02/12 06:00 MHDA- 2023/02/12 06:01 PMCR- 2023/01/20 CRDT- 2023/02/11 01:29 PHST- 2022/12/15 00:00 [received] PHST- 2023/01/09 00:00 [revised] PHST- 2023/01/18 00:00 [accepted] PHST- 2023/02/11 01:29 [entrez] PHST- 2023/02/12 06:00 [pubmed] PHST- 2023/02/12 06:01 [medline] PHST- 2023/01/20 00:00 [pmc-release] AID - ma16030964 [pii] AID - materials-16-00964 [pii] AID - 10.3390/ma16030964 [doi] PST - epublish SO - Materials (Basel). 2023 Jan 20;16(3):964. doi: 10.3390/ma16030964.