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Investigation on the Thermal Performance of Halloysite Nanotubes-Based Solid-Solid Phase Change Materials in Floor Heating System
Halloysite nanotubes (HNTs) have become one kind of promising supporting material for composite phase change materials (PCMs). In the present study, a novel solid–solid phase change material (SSPCM) was prepared based on polyethylene glycol as the soft segment and HNTs as the rigid segment through the two-step polymerization method. The prepared SSPCMs possess a steady crosslinking structure, and the SSPCMs own good crystallization properties. The SSPCM (PEG, 86.5 wt%) has high phase change enthalpy (tm is 56.49 °C, ΔHendo is 149.0 J/g) and good crystallinity of 89.1%. As a result, a two-dimensional coupled heat transfer model is established according to the floor heating system with phase change thermal storage. Comparison between the effects of SSPCM1 and cement on indoor temperatures shows that the air temperature fluctuation in the cavity with SSPCM1 structure is in a smaller magnitude, and the temperature control system is relatively simple. It can be revealed that the synthesized SSPCM can effectively save energy while meeting the heating requirements.
Investigation on the Thermal Performance of Halloysite Nanotubes-Based Solid-Solid Phase Change Materials in Floor Heating System
Halloysite nanotubes (HNTs) have become one kind of promising supporting material for composite phase change materials (PCMs). In the present study, a novel solid–solid phase change material (SSPCM) was prepared based on polyethylene glycol as the soft segment and HNTs as the rigid segment through the two-step polymerization method. The prepared SSPCMs possess a steady crosslinking structure, and the SSPCMs own good crystallization properties. The SSPCM (PEG, 86.5 wt%) has high phase change enthalpy (tm is 56.49 °C, ΔHendo is 149.0 J/g) and good crystallinity of 89.1%. As a result, a two-dimensional coupled heat transfer model is established according to the floor heating system with phase change thermal storage. Comparison between the effects of SSPCM1 and cement on indoor temperatures shows that the air temperature fluctuation in the cavity with SSPCM1 structure is in a smaller magnitude, and the temperature control system is relatively simple. It can be revealed that the synthesized SSPCM can effectively save energy while meeting the heating requirements.
Investigation on the Thermal Performance of Halloysite Nanotubes-Based Solid-Solid Phase Change Materials in Floor Heating System
Environ Sci Eng
Wang, Liangzhu Leon (Herausgeber:in) / Ge, Hua (Herausgeber:in) / Zhai, Zhiqiang John (Herausgeber:in) / Qi, Dahai (Herausgeber:in) / Ouf, Mohamed (Herausgeber:in) / Sun, Chanjuan (Herausgeber:in) / Wang, Dengjia (Herausgeber:in) / Zhang, Tiantian (Autor:in) / Chen, Zhenqian (Autor:in)
International Conference on Building Energy and Environment ; 2022
Proceedings of the 5th International Conference on Building Energy and Environment ; Kapitel: 108 ; 1019-1027
05.09.2023
9 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Solid–solid phase change materials , Halloysite nanotubes (HNTs) , Polyethylene glycol , Crosslinking copolymer , Floor heating system Engineering , Building Physics, HVAC , Fire Science, Hazard Control, Building Safety , Sustainable Architecture/Green Buildings , Renewable and Green Energy , Environment, general
Preparation method of heating solid wood composite floor and heating solid wood composite floor
| Europäisches Patentamt | 2024