Article
Energy & Fuels
Nan Sheng, Yunfei Ge, Yunqi Guo, Chunyu Zhu, Zhonghao Rao
Summary: This study successfully fabricated Cu@Al2O3 macro-encapsulated metallic PCMs for high-temperature thermal storage. The macrocapsules consist of Cu core and Al2O3 ceramic shell, providing buffer spaces for thermal expansion and showing good durability.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2022)
Article
Construction & Building Technology
Xiao Sun, Wenyu Liao, Aditya Kumar, Kamal H. Khayat, Zhenghong Tian, Hongyan Ma
Summary: An image-based multi-level modeling method is proposed to estimate the effective bulk thermal conductivity of lightweight aggregate impregnated with phase change material. The study successfully models the microstructure of the lightweight aggregate and simulates the change in thermal behavior of PCM-LWA in concrete.
CEMENT & CONCRETE COMPOSITES
(2021)
Article
Construction & Building Technology
Ahmad Wadee, Pallavi Achanta, Pete Walker, Nick McCullen, Veronica Ferrandiz-Mas
Summary: This study developed a novel gypsum plaster with high energy storage phase change material (PCM) loaded granules to reduce energy consumption in buildings.PCM gypsum plaster achieved the maximum thermal comfort, while incorporating PCM granules into cement blocks resulted in the highest energy savings.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Energy & Fuels
Andreas Heinz, Christoph Moser
Summary: Thermal energy storage using phase change material (PCM) is crucial for transitioning to renewable energy sources. This study analyzed a PCM storage system with non-spherical PCM modules and successfully validated the simulation model with experimental results.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Engineering, Environmental
Qingchuan Zou, Zonghui Dong, Xiaohong Yang, Jinchuan Jie, Xizhong An, Ning Han, Tingju Li
Summary: The self-encapsulation strategy of eutectic Al-Si PCM by constructing 3D-honeycomb-SiC reinforced Al matrix composite with Si-rich Si-poor cladding structure can fundamentally address the corrosion issue and exhibit excellent thermal conductivity and energy storage capacity. This strategy also leads to significant improvements in discharge energy density and charge and discharge efficiency compared to traditional encapsulation methods in metallurgical industry.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Thermodynamics
Aditya Kumar Singh, Pushpendra Kumar Singh Rathore, R. K. Sharma, Naveen Kumar Gupta, Rajan Kumar
Summary: This study demonstrates the impact of integrating eutectic Phase Change Material (PCM) in concrete on its thermal, physical, and mechanical properties. The researchers successfully prepared a Shape Stabilized Composite Phase Change Material (SSCPCM) by mixing eutectic PCM with Zeolite, which effectively prevented PCM leakage and showed stability in chemical, physical, and morphological properties. The integration of SSCPCM in concrete resulted in Thermal Energy Storage Concrete slabs, which exhibited excellent thermal behavior in real outdoor environments.
Article
Construction & Building Technology
Marcus Maier, Brian Salazar, Cise Unluer, Hayden K. Taylor, Claudia P. Ostertag
Summary: The novel 3D-printed macro-encapsulation method for PCMs was investigated and compared to commercially available micro-encapsulated PCMs mixtures. The results showed that the macro-encapsulated samples had improved mechanical properties and significantly reduced indoor temperature, demonstrating potential for thermal retrofitting and energy-saving in tropical climates.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Green & Sustainable Science & Technology
Min Li, Dongyi Zhou, Yaqing Jiang
Summary: The preparation and performance of phase change ceramsite sand and thermal storage lightweight concrete were studied. Through analysis of specific surface area, pore structure, thermal properties, chemical composition, and phase composition, the results showed that the prepared concrete has good compressive strength and temperature regulation performance, suitable for energy saving and the use of renewable energy.
Article
Green & Sustainable Science & Technology
Fawad Ahmed, Mariam Mahmood, Adeel Waqas, Naveed Ahmad, Majid Ali
Summary: The study focused on Thermal Energy Storage (TES) systems based on Phase Change Materials (PCM), integrated with air conditioning systems and gas heaters for efficient energy utilization in buildings. The numerical model and experimental validation were used to investigate the thermal performance indices of the system, which revealed a deviation in the mathematical model due to the non-isothermal phase transition phenomenon of PCM.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2021)
Article
Energy & Fuels
Omais Abdur Rehman, Valeria Palomba, David Verez, Emiliano Borri, Andrea Frazzica, Vincenza Brancato, Teresa Botargues, Zafer Ure, Luisa F. Cabeza
Summary: This research paper presents a comprehensive performance evaluation of three macro-encapsulation designs for phase change materials in a thermal energy storage unit. The study assesses the thermal performance, efficiency, and practical applicability of these designs. The results provide valuable insights into the thermal behavior, energy storage capacity, and effectiveness of the encapsulation designs.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Thermodynamics
Yan Dong, Fuqiang Wang, Yaqi Zhang, Xuhang Shi, Aoyu Zhang, Yong Shuai
Summary: The emergence of bionics in engineering technology has provided new ideas for innovation, particularly in the fields of energy storage and heat transfer enhancement. By utilizing biomimetic oval structures for heat storage units with phase change material capsules, improvements in flow characteristics and thermal performance have been achieved. Experimental and numerical analyses indicate that oval shaped capsules have shorter melting times and higher Nusselt numbers compared to sphere capsules.
Article
Construction & Building Technology
Qudama Al-Yasiri, Marta Szabo
Summary: This research examines the thermal behavior of concrete brick-based PCM layer/capsules in southern Iraq during hot summer days. Three bricks were tested, with one brick integrated with a PCM layer, another integrated with PCM capsules, and a third one without PCM for comparison. The thermal performance and mechanical strength decline of each brick were evaluated. The results showed that the PCM layer and capsules improved the thermal performance of the bricks, but had different effects on mechanical strength.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2023)
Article
Thermodynamics
Hongzhi Cui, Yang Zou, Haibin Yang, Xiaohua Bao
Summary: This study introduces a novel approach, fine aggregate polymerization, for the development of a thermal energy storage aggregate (TESA) using salt hydrate phase change material. The results reveal that reducing the particle size of the aggregate enhances both the energy storage capacity and compressive strength of the concrete. Additionally, the addition dosage of TESA positively impacts the energy storage density but negatively affects compressive strength.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Energy & Fuels
Lin Zhu, Faning Dang, Yi Xue, Weihua Ding, Kai Jiao
Summary: The addition of MPCM to lightweight aggregate concrete significantly affects its properties, with increasing MPCM content leading to higher porosity, lower density, and decreased compressive strength. The compressive strength of MPCM-LWAC increases with longer curing times, but the growth rate decreases with higher MPCM content.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Construction & Building Technology
Dileep Kumar, Morshed Alam, Jay Sanjayan, Muhammad Harris
Summary: Phase change materials (PCM) can reduce energy consumption and improve thermal comfort in buildings. However, there are limitations in integrating PCM into construction materials, primarily due to the selection of suitable porous materials. This study aimed to select the most suitable porous material for developing Form Stable PCM (FSPCM) cement composite for concrete panels in building envelopes. Five different porous materials were considered based on their porosity, geometry, and surface morphology, and the performance of the synthesized FSPCM composite was evaluated. The study revealed that silica aerogel granules (SAG) had the highest PCM absorption capacity, while recycled expanded glass (REG) had lower absorption capacity. The Capric Acid/Hydrophobic expanded Perlite (CAHEP) showed the best overall performance in terms of absorption, thermal conductivity, strength, thermal inertia, latent heat storage, and thermal storage.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2023)
Article
Construction & Building Technology
Xiaogang Zhang, Ce Jiang, Yao Chen, Binyang Yuan, Shazim Ali Memon, Jie Ren, Feng Xing, Hongfang Sun
Summary: The influence of initial defect on the degradation of both steel and mortar cover exposed to cyclic wetting and drying environment was studied using 3D scanning technique. The results showed that initial defect had a converse effect on steel corrosion at different stages, as well as the damage to mortar cover. In the long term, the presence of initial defect close to the steel would cause more severe damage.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Multidisciplinary Sciences
Diego Maria Barbieri, Baowen Lou, Robert Jason Dyke, Hao Chen, Pengxiang Zhao, Shazim Ali Memon, Inge Hoff
Summary: This dataset is obtained from laboratory testing of bentonite clay as a stabilization technology for road pavements. The effects of different types of bentonite on road construction materials were assessed. The results reveal the potential of bentonite clay as a road stabilizer, which is significant for ensuring well-performing road infrastructures and environmentally sound construction.
Article
Construction & Building Technology
Osman Gencel, Gokhan Hekimoglu, Ahmet Sari, Abid Ustaoglu, Serkan Subasi, Muhammed Marasli, Ertugrul Erdogmus, Shazim Ali Memon
Summary: A comprehensive study on the fabrication and characterization of gypsum plasterboards combined with microencapsulated phase change material (mPCM) reveals their potential in thermoregulation management and energy saving in buildings.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Green & Sustainable Science & Technology
Anum Khalid, Rao Arsalan Khushnood, Shazim Ali Memon
Summary: In this study, waste from agriculture and industrial sources is transformed into biochar, which is used as an additive in concrete to improve its mechanical characteristics. The pyrolysis of scrap tires has the lowest net global warming potential. The inclusion of pyrolyzed cotton stalk improves flexural resistance, while the inclusion of pyrolyzed scrap tires increases compressive strength and reduces emissions.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Chemistry, Multidisciplinary
Li Ling, Chao Wu, Feng Xing, Shazim Ali Memon, Hongfang Sun
Summary: An electrochemical method was proposed to recycle graphene oxide from carbon fiber reinforced polymer. The results showed that different electrolytes and current densities led to different purities and particle sizes of graphene oxide. This recycling method is economical and provides an alternative approach to handle discarded carbon fiber reinforced polymer.
Article
Energy & Fuels
Abylaikhan Bozzhigitov, Shazim Ali Memon, Indira Adilkhanova
Summary: In this study, the optimization of PCM layer thickness and melting temperature in office buildings located in the Cfb climate zone was conducted using the Fanger model. The results showed that a 2 cm PCM layer and a melting temperature of 22-25 achieved the highest energy savings.
Article
Construction & Building Technology
Nafeesa Shaheen, Rao Arsalan Khushnood, Shazim Ali Memon, Fazal Adnan
Summary: In this study, the survival of alkaliphilic calcifying microbes in a cementitious environment was evaluated, and it was found that they were able to survive and improve the mechanical properties of concrete. Additionally, these microbes were capable of precipitating large amounts of calcite, with a maximum crack healing capacity of 0.8 mm and 86% strength recovery. Microstructural evaluations also showed improved densification and resistance against chloride ion penetration and sulfate attack. Therefore, these microbes have the potential to extend the lifespan of concrete structures, reduce repair costs, and conserve natural resources.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Construction & Building Technology
Hassan Amjad, Rao Arsalan Khushnood, Shazim Ali Memon
Summary: Bio-healing is a promising technique for repairing concrete cracks. This study investigated the robustness of bio-healable concrete against two successive damage cycles using Bacillus Subtilis immobilized via sisal fiber. The results showed that the formulated bio-concrete exhibited improved mechanical properties and achieved significant enhancement in compression strength and split tensile strength.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Thermodynamics
Bekarys Omarov, Shazim Ali Memon, Jong Kim
Summary: The study proposes a novel approach for climate zoning based on cooling degree days (CDD), heating degree days (HDD), and building energy performance. Analysis was conducted on 90 cities in 18 climate zones, comparing different degree day calculation methods and evaluating the relationship between degree days and building energy performance. A new climate classification approach was presented based on the patterns of degree days and energy consumption.
Article
Construction & Building Technology
Assemgul Saurbayeva, Shazim Ali Memon, Jong Kim
Summary: This research investigates the importance of early design stage decisions in the building design process, specifically in PCM integrated buildings in tropical savanna climates. The study uses multi-stage sensitivity and optimization methods to analyze the impact of different design parameters on energy consumption. The results show that the selection of early design stage parameters is crucial in reducing building energy consumption, and optimization can significantly decrease energy use while being economically and environmentally feasible.
JOURNAL OF BUILDING ENGINEERING
(2023)
Review
Construction & Building Technology
Alexey Remizov, Shazim Ali Memon, Jong R. Kim
Summary: This review examines scientific literature on climate mapping for buildings, focusing on climate zoning variables and methods. The study finds that machine learning and building energy simulations are becoming popular and reliable methods for climate zoning among scientists.
Article
Construction & Building Technology
Shazim Ali Memon, Usman Javed, Muhammad Izhar Shah, Asad Hanif
Summary: Using processed sugarcane bagasse ash (SCBA) as supplementary cementing material in concrete can improve the performance and durability of concrete.
Review
Construction & Building Technology
Shazim Ali Memon, Zere Bekzhanova, Aray Murzakarimova
Summary: This paper discusses the differences between recycled concrete aggregate (RCA) and natural aggregate (NA) in terms of physical, mechanical, and chemical properties. It also covers methods for improving the interfacial transition zone (ITZ) and adherent mortar regions of RCA. The review concludes that carbonation treatment is the most efficient and sustainable method for enhancing RCA.
Article
Construction & Building Technology
Hongfang Sun, Hao Zou, Xinwei Li, Shazim Ali Memon, Binyang Yuan, Feng Xing, Xiaogang Zhang, Jie Ren
Summary: In this study, X-ray microcomputed tomography (XCT) and nanoindentation techniques were used to evaluate the synergistic action between sulfate and chloride ingress under cyclic drying-immersion conditions on steel-reinforced mortars. The results showed that chloride caused more severe corrosion on steel reinforcement than sulfate while under the influence of sulfate, and sulfate suppressed the steel corrosion caused by chloride. Additionally, sulfate caused the most severe damage to the mortar cover, while chloride resulted in the least damage.
Article
Green & Sustainable Science & Technology
Diego Maria Barbieri, Baowen Lou, Robert Jason Dyke, Hao Chen, Pengxiang Zhao, Shazim Ali Memon, Inge Hoff
Summary: Bentonite is an effective option for road stabilization, and the study finds that calcium-based bentonite performs slightly better than sodium-based bentonite in terms of increasing the resilient modulus.
CLEANER ENGINEERING AND TECHNOLOGY
(2022)
Article
Construction & Building Technology
Samiran Khorat, Debashish Das, Rupali Khatun, Sk Mohammad Aziz, Prashant Anand, Ansar Khan, Mattheos Santamouris, Dev Niyogi
Summary: Cool roofs can effectively mitigate heatwave-induced excess heat and enhance thermal comfort in urban areas. Implementing cool roofs can significantly improve urban meteorology and thermal comfort, reducing energy flux and heat stress.
ENERGY AND BUILDINGS
(2024)
Article
Construction & Building Technology
Qi Li, Jiayu Chen, Xiaowei Luo
Summary: This study focuses on the vertical wind conditions as a main external factor that limits the energy assessment of high-rise buildings in urban areas. Traditional tools for energy assessment of buildings use a universal vertical wind profile estimation, without taking into account the unique wind speed in each direction induced by the various shapes and configurations of buildings in cities. To address this limitation, the study developed an omnidirectional urban vertical wind speed estimation method using direction-dependent building morphologies and machine learning algorithms.
ENERGY AND BUILDINGS
(2024)
Article
Construction & Building Technology
Xiaojun Luo, Lamine Mahdjoubi
Summary: This paper presents an integrated blockchain and machine learning-based energy management framework for multiple forms of energy allocation and transmission among multiple domestic buildings. Machine learning is used to predict energy generation and consumption patterns, and the proposed framework establishes optimal and automated energy allocation through peer-to-peer energy transactions. The approach contributes to the reduction of greenhouse gas emissions and enhances environmental sustainability.
ENERGY AND BUILDINGS
(2024)
Article
Construction & Building Technology
Ying Yu, Yuanwei Xiao, Jinshuai Chou, Xingyu Wang, Liu Yang
Summary: This study proposes a dual-layer optimization design method to maximize the energy sharing potential, enhance collaborative benefits, and reduce the storage capacity of building clusters. Case studies show that the proposed design significantly improves the performance of building clusters, reduces energy storage capacity, and shortens the payback period.
ENERGY AND BUILDINGS
(2024)
Article
Construction & Building Technology
Felix Langner, Weimin Wang, Moritz Frahm, Veit Hagenmeyer
Summary: This paper compares two main approaches to consider uncertainties in model predictive control (MPC) for buildings: robust and stochastic MPC. The results show that compared to a deterministic MPC, the robust MPC increases the electricity cost while providing complete temperature constraint satisfaction, while the stochastic MPC slightly increases the electricity cost but fulfills the thermal comfort requirements.
ENERGY AND BUILDINGS
(2024)
Article
Construction & Building Technology
Somil Yadav, Caroline Hachem-Vermette
Summary: This study proposes a mathematical model to evaluate the performance of a Double Skin Facade (DSF) system and its impact on indoor conditions. The model considers various design parameters and analyzes their effects on the system's electrical output and room temperature.
ENERGY AND BUILDINGS
(2024)
Article
Construction & Building Technology
Ruijun Chen, Holly Samuelson, Yukai Zou, Xianghan Zheng, Yifan Cao
Summary: This research introduces an innovative resilient design framework that optimizes building performance by considering a holistic life cycle perspective and accounting for climate projection uncertainties. The study finds that future climate scenarios significantly impact building life cycle performance, with wall U-value, windows U-value, and wall density being major factors. By using ensemble learning and optimization algorithms, predictions for carbon emissions, cost, and indoor discomfort hours can be made, and the best resilient design scheme can be selected. Applying this framework leads to significant improvements in building life cycle performance.
ENERGY AND BUILDINGS
(2024)
