Comprehensive investigations on printability and thermal performance of cementitious material incorporated with PCM under various conditions

Energy consumed in building and construction accounts for 40% of the total end-use energy. To achieve the energy reduction in this area, conventional construction approaches need to be reshaped. To overcome existing challenges, this study explores the use of 3D cementitious material printing (3DCMP)...

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Main Authors: Liu, Zhixin, Li, Mingyang, Kandasamy, Ranjith, Ho, Jin Yao, Wong, Teck Neng, Li, Holden King Ho, Tan, Ming Jen
Other Authors: School of Mechanical and Aerospace Engineering
Format: Article
Language:English
Published: 2022
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Online Access:https://hdl.handle.net/10356/161906
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1619062022-09-26T01:58:02Z Comprehensive investigations on printability and thermal performance of cementitious material incorporated with PCM under various conditions Liu, Zhixin Li, Mingyang Kandasamy, Ranjith Ho, Jin Yao Wong, Teck Neng Li, Holden King Ho Tan, Ming Jen School of Mechanical and Aerospace Engineering Singapore Centre for 3D Printing Engineering::Mechanical engineering 3D Cementitious Material Printing Phase Change Material Energy consumed in building and construction accounts for 40% of the total end-use energy. To achieve the energy reduction in this area, conventional construction approaches need to be reshaped. To overcome existing challenges, this study explores the use of 3D cementitious material printing (3DCMP) and investigates the printability of these cementitious materials incorporated with the phase change material (PCM). To realize the newly developed composite cementitious materials for real-world applications, we examinate the benefits of utilizing them for building's energy consumption reduction. From our study, we demonstrate, for the first time, the successful fabrication of the PCM composite wall by 3DCMP method. The enthalpy porosity method is then proposed to study the time-dependent thermal performance of the composite wall by modelling the encapsulated PCM and cementitious material as porous and medium, respectively. Our results show the proposed model is reliable in predicting the PCM composite wall thermal performance and demonstrate the composite wall has the potential of smoothing and reducing energy consumption by the building. From our investigation, it is determined that the PCM melting temperature should be chosen based on heating time and heat power density. Additionally, the total cost of precasting a wall by conventional methods with a dimension of 4 m × 0.12 m × 2.8 m (L × W × H) is 28.4% higher than the printing counterpart. Furthermore, the performance enhancements resulted in approximately 30% savings in building energy consumption during the day using plain walls infused with 3% PCM. This study not only demonstrates the potential of fabricating enhanced building materials through the utilization of additive manufacturing technique, but it also provides the guidelines to design PCM composite walls under various operating conditions. National Research Foundation (NRF) This research is supported by the National Research Foundation, Singapore, Prime Minister’s Office, Singapore under its Medium-Sized Centre funding scheme, Doctoral Research Startup Project of Suzhou University (No. 2021BSK023), Key Natural Science Project of Anhui Provincial Education Department (No. KJ2021A1111). Chip Eng Seng-Sembcorp Design & Construction Pte Ltd, Sembcorp Architects & Engineers Pte Ltd. 2022-09-26T01:58:01Z 2022-09-26T01:58:01Z 2022 Journal Article Liu, Z., Li, M., Kandasamy, R., Ho, J. Y., Wong, T. N., Li, H. K. H. & Tan, M. J. (2022). Comprehensive investigations on printability and thermal performance of cementitious material incorporated with PCM under various conditions. Energy Conversion and Management, 261, 115667-. https://dx.doi.org/10.1016/j.enconman.2022.115667 0196-8904 https://hdl.handle.net/10356/161906 10.1016/j.enconman.2022.115667 2-s2.0-85129038801 261 115667 en Energy Conversion and Management © 2022 Published by Elsevier Ltd. All rights reserved.
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Mechanical engineering
3D Cementitious Material Printing
Phase Change Material
spellingShingle Engineering::Mechanical engineering
3D Cementitious Material Printing
Phase Change Material
Liu, Zhixin
Li, Mingyang
Kandasamy, Ranjith
Ho, Jin Yao
Wong, Teck Neng
Li, Holden King Ho
Tan, Ming Jen
Comprehensive investigations on printability and thermal performance of cementitious material incorporated with PCM under various conditions
description Energy consumed in building and construction accounts for 40% of the total end-use energy. To achieve the energy reduction in this area, conventional construction approaches need to be reshaped. To overcome existing challenges, this study explores the use of 3D cementitious material printing (3DCMP) and investigates the printability of these cementitious materials incorporated with the phase change material (PCM). To realize the newly developed composite cementitious materials for real-world applications, we examinate the benefits of utilizing them for building's energy consumption reduction. From our study, we demonstrate, for the first time, the successful fabrication of the PCM composite wall by 3DCMP method. The enthalpy porosity method is then proposed to study the time-dependent thermal performance of the composite wall by modelling the encapsulated PCM and cementitious material as porous and medium, respectively. Our results show the proposed model is reliable in predicting the PCM composite wall thermal performance and demonstrate the composite wall has the potential of smoothing and reducing energy consumption by the building. From our investigation, it is determined that the PCM melting temperature should be chosen based on heating time and heat power density. Additionally, the total cost of precasting a wall by conventional methods with a dimension of 4 m × 0.12 m × 2.8 m (L × W × H) is 28.4% higher than the printing counterpart. Furthermore, the performance enhancements resulted in approximately 30% savings in building energy consumption during the day using plain walls infused with 3% PCM. This study not only demonstrates the potential of fabricating enhanced building materials through the utilization of additive manufacturing technique, but it also provides the guidelines to design PCM composite walls under various operating conditions.
author2 School of Mechanical and Aerospace Engineering
author_facet School of Mechanical and Aerospace Engineering
Liu, Zhixin
Li, Mingyang
Kandasamy, Ranjith
Ho, Jin Yao
Wong, Teck Neng
Li, Holden King Ho
Tan, Ming Jen
format Article
author Liu, Zhixin
Li, Mingyang
Kandasamy, Ranjith
Ho, Jin Yao
Wong, Teck Neng
Li, Holden King Ho
Tan, Ming Jen
author_sort Liu, Zhixin
title Comprehensive investigations on printability and thermal performance of cementitious material incorporated with PCM under various conditions
title_short Comprehensive investigations on printability and thermal performance of cementitious material incorporated with PCM under various conditions
title_full Comprehensive investigations on printability and thermal performance of cementitious material incorporated with PCM under various conditions
title_fullStr Comprehensive investigations on printability and thermal performance of cementitious material incorporated with PCM under various conditions
title_full_unstemmed Comprehensive investigations on printability and thermal performance of cementitious material incorporated with PCM under various conditions
title_sort comprehensive investigations on printability and thermal performance of cementitious material incorporated with pcm under various conditions
publishDate 2022
url https://hdl.handle.net/10356/161906
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