Mechanical and Thermo-Physical Performances of Gypsum-Based PCM Composite Materials Reinforced with Carbon Fiber
Phase change materials (PCMs) have received extensive attention due to their high latent heat storage density and isothermal behavior during heat charging and discharging processes. The application of PCMs in buildings would match energy supply and demand by using solar energy effectively, thereby r...
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MDPI AG
2021-01-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/11/2/468 |
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| author | Bo Zhang Haibin Yang Tao Xu Waiching Tang Hongzhi Cui |
| author_facet | Bo Zhang Haibin Yang Tao Xu Waiching Tang Hongzhi Cui |
| author_sort | Bo Zhang |
| collection | DOAJ |
| description | Phase change materials (PCMs) have received extensive attention due to their high latent heat storage density and isothermal behavior during heat charging and discharging processes. The application of PCMs in buildings would match energy supply and demand by using solar energy effectively, thereby reducing building energy consumption. In this study, a diatomite/paraffin (DP) composite was prepared through a vacuum-impregnated process. The thermo-physical performance, thermal stability, chemical structure and thermal reliability of the DP composite were evaluated. To develop a structural–functional integrated energy storage building material, carbon fibers (CF) were chosen as the reinforcing material. The mechanical and thermal properties of CF-reinforced DP/gypsum were examined. It is evident that the flexural strength and thermal conductivity of DP/gypsum containing 1 wt. % CF increased by 176.0% and 20.3%, respectively. In addition, the results of room model testing demonstrated that the presence of CF could enhance the overall thermal conductivity and improve the thermo-regulated performance of DP/gypsum. Moreover, the payback period of applying CF-reinforced DP/gypsum in residential buildings is approximately 23.31 years, which is much less than the average life span of buildings. Overall, the CF reinforced DP/gypsum composite is promising for thermal energy storage applications. |
| first_indexed | 2024-03-10T13:27:38Z |
| format | Article |
| id | doaj.art-f97a52e6e2684c51bd652a19104c7a76 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T13:27:38Z |
| publishDate | 2021-01-01 |
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| spelling | doaj.art-f97a52e6e2684c51bd652a19104c7a762023-11-21T08:44:22ZengMDPI AGApplied Sciences2076-34172021-01-0111246810.3390/app11020468Mechanical and Thermo-Physical Performances of Gypsum-Based PCM Composite Materials Reinforced with Carbon FiberBo Zhang0Haibin Yang1Tao Xu2Waiching Tang3Hongzhi Cui4College of Civil and Transportation Engineering, Shenzhen University, Shenzhen 518060, ChinaCollege of Civil and Transportation Engineering, Shenzhen University, Shenzhen 518060, ChinaSchool of Civil Engineering, Guangzhou University, Guangzhou 510006, ChinaSchool of Architecture and Built Environment, The University of Newcastle, Callaghan, NSW 2308, AustraliaCollege of Civil and Transportation Engineering, Shenzhen University, Shenzhen 518060, ChinaPhase change materials (PCMs) have received extensive attention due to their high latent heat storage density and isothermal behavior during heat charging and discharging processes. The application of PCMs in buildings would match energy supply and demand by using solar energy effectively, thereby reducing building energy consumption. In this study, a diatomite/paraffin (DP) composite was prepared through a vacuum-impregnated process. The thermo-physical performance, thermal stability, chemical structure and thermal reliability of the DP composite were evaluated. To develop a structural–functional integrated energy storage building material, carbon fibers (CF) were chosen as the reinforcing material. The mechanical and thermal properties of CF-reinforced DP/gypsum were examined. It is evident that the flexural strength and thermal conductivity of DP/gypsum containing 1 wt. % CF increased by 176.0% and 20.3%, respectively. In addition, the results of room model testing demonstrated that the presence of CF could enhance the overall thermal conductivity and improve the thermo-regulated performance of DP/gypsum. Moreover, the payback period of applying CF-reinforced DP/gypsum in residential buildings is approximately 23.31 years, which is much less than the average life span of buildings. Overall, the CF reinforced DP/gypsum composite is promising for thermal energy storage applications.https://www.mdpi.com/2076-3417/11/2/468phase change materialdiatomite/paraffin compositecarbon fiberthermal conductivitymechanical propertiesfeasibility analysis |
| spellingShingle | Bo Zhang Haibin Yang Tao Xu Waiching Tang Hongzhi Cui Mechanical and Thermo-Physical Performances of Gypsum-Based PCM Composite Materials Reinforced with Carbon Fiber Applied Sciences phase change material diatomite/paraffin composite carbon fiber thermal conductivity mechanical properties feasibility analysis |
| title | Mechanical and Thermo-Physical Performances of Gypsum-Based PCM Composite Materials Reinforced with Carbon Fiber |
| title_full | Mechanical and Thermo-Physical Performances of Gypsum-Based PCM Composite Materials Reinforced with Carbon Fiber |
| title_fullStr | Mechanical and Thermo-Physical Performances of Gypsum-Based PCM Composite Materials Reinforced with Carbon Fiber |
| title_full_unstemmed | Mechanical and Thermo-Physical Performances of Gypsum-Based PCM Composite Materials Reinforced with Carbon Fiber |
| title_short | Mechanical and Thermo-Physical Performances of Gypsum-Based PCM Composite Materials Reinforced with Carbon Fiber |
| title_sort | mechanical and thermo physical performances of gypsum based pcm composite materials reinforced with carbon fiber |
| topic | phase change material diatomite/paraffin composite carbon fiber thermal conductivity mechanical properties feasibility analysis |
| url | https://www.mdpi.com/2076-3417/11/2/468 |
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