Numerical Simulation of Thermal Performance of Micro-PCM Cement Mortar Composite Wall
1. College of Civil Engineering, Henan University of Technology, Zhengzhou 450001, China
2. School of Civil Engineering and Architecture, Hainan University, Haikou 570228, China
| Abstract: | In order to give full play to the effect of temperature regulation and energy saving of the phase change wall, the cement mortar mixed with phase change microcapsules was coated on the surface of the wall to form the phase change energy storage wall. Considering the thermal response of the temperature inside the wall, the heat transfer theoretical model of the phase change energy storage wall was established. The heat transfer process in the phase change energy storage wall and the temperature change inside the wall. The calculation results show that the content of phase change microcapsules in the phase change energy storage wall is one of the important factors affecting the temperature attenuation of the inner side of the wall. The peak time of the temperature change response curve on the inner side of the phase change wall is lagging behind that of the conventional wall, and the existence of the highest temperature is also lower, the peak temperature fluctuation is also lower, and the heat flow is reduced. It can be seen that the introduction of phase change microcapsules into the wall can achieve the purpose of reducing the temperature inside the wall and reducing the capacity of the air conditioning and refrigeration system of the building, which provides a good way to reduce the energy consumption and cost of building refrigeration. |
| Keywords: | Phase Change Microcapsule; Phase Change Energy Storage Material; Numerical Simulation; Thermal Properties; Insulation Performance of Wall |
| DOI: | 10.57237/j.cear.2023.01.001 |
View:
Downloads:
收稿日期: 2023-01-06
接受日期: 2023-03-08
在线出版日期: 2023-03-28
基金
| 1. | Key Science and Technology Program of Henan Province, China (NO.222102320201) |
| 2. | Key Scientific Research Project of Higher Education in Henan Province (NO.23A130003) |
参考文献
| [1] | Wei, Q., et al., A summary of the research on building load forecasting model of colleges and universities in North China based on energy consumption behavior: A case in North China. Energy Reports, 2022. 8: p. 1446-1462. |
| [2] | Al-Yasiri, Q. and M. Szabó, Numerical analysis of thin building envelope-integrated phase change material towards energy-efficient buildings in severe hot location. Sustainable Cities and Society, 2023. 89: p. 104365. |
| [3] | Balali, A., A. Yunusa-Kaltungo, and R. Edwards, A systematic review of passive energy consumption optimisation strategy selection for buildings through multiple criteria decision-making techniques. Renewable and Sustainable Energy Reviews, 2023. 171: p. 113013. |
| [4] | Akeiber, H., et al., A review on phase change material (PCM) for sustainable passive cooling in building envelopes. Renewable and Sustainable Energy Reviews, 2016. 60 (Jul.): p. 1470-1497. |
| [5] | Al-Yasiri, Q. and M. Szabó, Experimental study of PCM-enhanced building envelope towards energy-saving and decarbonisation in a severe hot climate. Energy and Buildings, 2023. 279: p. 112680. |
| [6] | Yu, L., et al., Do more efficient buildings lead to lower household energy consumption for cooling? Evidence from Guangzhou, China. Energy Policy, 2022. 168: p. 113119. |
| [7] | Chao, L., et al., Passive energy-saving buildings realized by the combination of transparent heat-shielding glass and energy storage cement. Construction and Building Materials, 2023. 365: p. 130023. |
| [8] | Zhang, X., et al., Similarity-based grouping method for evaluation and optimization of dataset structure in machine-learning based short-term building cooling load prediction without measurable occupancy information. Applied Energy, 2022. 327: p. 120144. |
| [9] | Zhu, X., et al., Thermal comfort and energy saving of novel heat-storage coatings with microencapsulated PCM and their application. Energy and Buildings, 2021. 251: p. 111349. |
| [10] | Rathore, P. K. S., et al., Thermal performance of the building envelope integrated with phase change material for thermal energy storage: an updated review. Sustainable Cities and Society, 2022. 79: p. 103690. |
| [11] | Jia, J., et al., Energy saving performance optimization and regional adaptability of prefabricated buildings with PCM in different climates. Case Studies in Thermal Engineering, 2021. 26: p. 101164. |
| [12] | Ahmed, N., et al., Numerical characterization of thermocline behaviour of combined sensible-latent heat storage tank using brick manganese rod structure impregnated with PCM capsules. Solar Energy, 2019. 180: p. 243-256. |
| [13] | Pomianowski, M. and R. L. Jensen, Heat storage in concrete deck with nano- and micro-encapsulated PCM, in Smart Nanoconcretes and Cement-Based Materials, M. S. Liew, et al., Editors. 2020, Elsevier. p. 313-331. |
| [14] | Gencel, O., et al., Glass fiber reinforced gypsum composites with microencapsulated PCM as novel building thermal energy storage material. Construction and Building Materials, 2022. 340: p. 127788. |
| [15] | Cao, V. D., et al., Microencapsulated phase change materials for enhancing the thermal performance of Portland cement concrete and geopolymer concrete for passive building applications. Energy Conversion and Management, 2017. 133: p. 56-66. |
| [16] | Kuznik, F., J. Virgone, and K. Johannes, In-situ study of thermal comfort enhancement in a renovated building equipped with phase change material wallboard. Renewable Energy, 2011. 36 (5): p. 1458-1462. |
| [17] | Lee, K. O. and M. A. Medina, Using phase change materials for residential air conditioning peak demand reduction and energy conservation in coastal and transitional climates in the State of California. Energy and Buildings, 2016. 116: p. 69-77. |
| [18] | Djamai, Z. I., et al., Multiphysics analysis of effects of encapsulated phase change materials (PCMs) in cement mortars. Cement and Concrete Research, 2019. 119: p. 51-63. |
| [19] | Lecompte, T., et al., Mechanical and thermo-physical behaviour of concretes and mortars containing phase change material. Energy and Buildings, 2015. 94: p. 52-60. |
| [20] | Figueiredo, A., et al., Mechanical and thermal characterization of concrete with incorporation of microencapsulated PCM for applications in thermally activated slabs. Construction and Building Materials, 2016. 112: p. 639-647. |
