Article
Construction & Building Technology
Lingyong Ma, Dan Luo, Huiling Hu, Qing Li, Ruitong Yang, Shu Zhang, Dong Li
Summary: Heating, Ventilation and Air Conditioning (HVAC) systems are crucial for building energy consumption in severe cold areas. This study proposes a sunspace using phase-change material walls and silica aerogel glass to reduce indoor temperature fluctuations. Compared with existing sunspaces, the utilization of phase-change material and phase-change material-silica aerogel glass reduces heating energy consumption by 10% and 14% respectively. The study recommends a 9 mm thickness of silica aerogel layer for optimal energy saving rate and maximum average indoor temperature.
ENERGY AND BUILDINGS
(2023)
Article
Energy & Fuels
Ana Vukadinovic, Jasmina Radosavljevic, Amelija Dordevic, Milan Protic, Nemanja Petrovic
Summary: This paper discusses the optimization of a detached passive building with a sunspace using a non-dominant sorting genetic algorithm (NSGA-II). The study shows that the window-to-wall ratio is the most influential factor in energy performance, and recommends the use of low-emissivity argon-filled glazing, properly insulated opaque walls, and minimal shading on the south facade for optimal building performance.
Article
Energy & Fuels
Ana Vukadinovic, Jasmina Radosavljevic, Amelija Dordevic, Milan Protic
Summary: This research examines the impact of passive facade design on the energy performance of a detached residential building. Parameter analysis was conducted using commercial software to evaluate the influence of different facade wall structures, glazing types, and window-to-wall ratios on heating and cooling energy consumption. The results indicate that Variant W1, which consists of a 0.40-m-thick concrete layer, 0.14-m-thick expanded polystyrene thermal insulation layer, and a 0.03-m thick render/plaster layer, performs the best in terms of heating energy consumption. Triple low-emissivity glazing showed the best performance in terms of heating energy required for a building with a sunspace.
JOURNAL OF ENERGY ENGINEERING
(2023)
Article
Green & Sustainable Science & Technology
Wei Jiang, Yang Jin, Gongliang Liu, Qing Li, Dong Li
Summary: A three-step retrofit approach of thermal insulation materials, additional sunspaces and phase change materials (PCMs) was proposed to transform a typical rammed earth rural residential building (RERRB) in severe cold regions of China into a nearly zero energy rural residential building (NZERRB). The study analyzed and compared the economic parameters of different retrofit cases and found that external insulation measures, additional sunspaces and PCM had the best energy-saving effect and economy. This research provides reference methods for passive energy-saving retrofit projects for NZERRBs.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2023)
Article
Energy & Fuels
Madeeha Khan, Muhammad Mahabat Khan, Muhammad Irfan, Naseem Ahmad, Mohd Anul Haq, Ilyas Khan, Mohamed Mousa
Summary: The residential sector in Pakistan consumes a significant amount of energy, and the country is facing an energy crisis due to the increasing gap between energy supply and demand. This study numerically investigates the energy performance improvement of residential buildings in Pakistan by integrating Phase Change Materials (PCM) in building envelopes. The results show that using PCM on the inner sides of building envelopes can achieve significant energy savings and is economically feasible for certain cities.
Article
Green & Sustainable Science & Technology
Qing Li, Yuqi Wang, Lingyong Ma, Muesluem Arici, Dong Li, Cagatay Yildiz, Yongjian Zhu
Summary: The study found that utilizing a sunspace, especially when integrated with PCM louvers, can significantly reduce heating energy consumption in buildings in severe cold regions. Additionally, integrating PCM louvers can further enhance energy savings compared to a sunspace without PCM louvers.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2021)
Article
Thermodynamics
Reza Daneshazarian, Ayman M. Bayomy, Seth B. Dworkin
Summary: Implementing thermal energy storage (TES) systems in buildings and facilities improves heating/cooling system performance by reducing energy waste. This study introduces a novel two-step selection model for choosing the best thermal storage medium (TSM). Various types of TSMs, including phase change materials and nanoparticles, are investigated based on thermal storage capacity, heat storage rate, and thermal storage efficiency. The development of a modeling methodology for material selection and the ability to select the most efficient TES on a case-by-case basis are significant contributions of this work. This TSM selection technique enhances the understanding of selection tools and modeling capabilities in the field.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Construction & Building Technology
Tao Hai, S. Mohammad Sajadi, Jasni Mohamad Zain, A. S. El-Shafay, Mohsen Sharifpur
Summary: This study numerically analyzes an air conditioning system in a building using phase change materials. The focus is on reducing extra heat entering the building by studying the PCM discharging process at night. The results show that increasing tube diameter enhances PCM freezing time, while increasing Re value reduces freezing time.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Construction & Building Technology
Koray Konhaeuser, Simon Wenninger, Tim Werner, Christian Wiethe
Summary: Accurate predictions for buildings' energy performance (BEP) are crucial for retrofitting investment decisions and building benchmarking. This study evaluates and compares the prediction accuracy of twelve machine learning models for annual BEP predictions on a real-world dataset of over 25,000 German residential buildings. The results show that ensemble models outperform stand-alone machine learning models, with extreme gradient boosting demonstrating the highest prediction accuracy.
ENERGY AND BUILDINGS
(2022)
Article
Construction & Building Technology
Tristan Walker, Jean Duquette
Summary: This study assesses the potential techno-economic benefits of using a tank and turbine-generator system to recover energy from building wastewater systems. Results show that the system can generate significant electricity annually and is cost-effective, but the success depends on the electricity rate in the building's jurisdiction.
SUSTAINABLE CITIES AND SOCIETY
(2022)
Article
Energy & Fuels
Sana Dardouri, Souhir Mankai, Maha M. Almoneef, Mohamed Mbarek, Jalila Sghaier
Summary: Numerical simulations were conducted to evaluate the energy performance optimization of building envelope integrated with phase change materials (PCM). Results show that PCM can reduce the energy demand of residential buildings by 73.81% to 76.46% under optimal conditions, leading to a significant reduction in CO2 emissions.
Article
Energy & Fuels
Ravi Anant Kishore, Marcus V. A. Bianchi, Chuck Booten, Judith Vidal, Roderick Jackson
Summary: Deploying phase change materials (PCMs) and dynamic insulation materials in building envelopes can significantly improve energy efficiency, with a potential reduction in annual heat gain and heat loss in different climates and wall orientations.
Article
Construction & Building Technology
Emily Kawka, Kristen Cetin
Summary: The study found that during the COVID-19 pandemic, there were shifts in household electricity usage, particularly during times when occupants would typically be away from home. Low-income and high-income households experienced larger increases in energy consumption, while middle-income households saw smaller changes.
BUILDING AND ENVIRONMENT
(2021)
Article
Green & Sustainable Science & Technology
Zhenying Zhang, Wenjie Gang, Ying Zhang, Jiaqi Yuan
Summary: This study explores the approaches for low-density residential communities to achieve carbon neutrality by designing and optimizing regional zero-emission energy systems. The results show that even for low-density areas, external energy supply is required. Additionally, the utilization of local municipal waste significantly increases the self-sufficiency ratio. However, the economic performance of the systems is not attractive yet and measures need to be taken to improve their feasibility.
Review
Energy & Fuels
Yi Gao, Xi Meng
Summary: PCM bricks are a technology that combines phase change materials with traditional bricks to achieve solar thermal utilization in buildings. This article briefly introduces the application potential of PCM in buildings, describes the integration method and heat transfer model of PCM bricks in detail. The factors influencing the thermal performance of PCM bricks are discussed, and the experimental and numerical applications of PCM bricks in walls and buildings are analyzed. The main results show that form-stabilization and macro-encapsulation are the two main integration methods for PCM bricks, and there is a lack of high-precision numerical simulation methods for phase change heat transfer in the building field. PCM bricks combined with ventilation systems or insulation materials are encouraged.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Thermodynamics
Ivana S. Bogdanovic Protic, Ana V. Vukadinovic, Jasmina M. Radosavljevic, Meysam Alizamir, Mihajlo P. Mitkovic
Article
Energy & Fuels
Amelija V. Djordjevic, Jasmina M. Radosavljevic, Ana V. Vukadinovic, Jelena R. Malenovic Nikolic, Ivana S. Bogdanovic Protic
JOURNAL OF ENERGY ENGINEERING
(2017)
Article
Energy & Fuels
Amelija V. Djordjevic, Jasmina M. Radosavljevic, Ana V. Vukadinovic, Jelena R. Malenovic Nikolic, Ivana S. Bogdanovic Protic
JOURNAL OF ENERGY ENGINEERING
(2017)
Article
Green & Sustainable Science & Technology
Ana V. Vukadinovic, Jasmina M. Radosavljevic, Amelija V. Djordjevic, Dejan M. Bonic
ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY
(2019)
Article
Energy & Fuels
Ana Vukadinovic, Jasmina Radosavljevic, Amelija Dordevic, Milan Protic, Nemanja Petrovic
Summary: This paper discusses the optimization of a detached passive building with a sunspace using a non-dominant sorting genetic algorithm (NSGA-II). The study shows that the window-to-wall ratio is the most influential factor in energy performance, and recommends the use of low-emissivity argon-filled glazing, properly insulated opaque walls, and minimal shading on the south facade for optimal building performance.
Article
Energy & Fuels
Ana Vukadinovic, Jasmina Radosavljevic, Amelija Dordevic, Milan Protic
Summary: This research examines the impact of passive facade design on the energy performance of a detached residential building. Parameter analysis was conducted using commercial software to evaluate the influence of different facade wall structures, glazing types, and window-to-wall ratios on heating and cooling energy consumption. The results indicate that Variant W1, which consists of a 0.40-m-thick concrete layer, 0.14-m-thick expanded polystyrene thermal insulation layer, and a 0.03-m thick render/plaster layer, performs the best in terms of heating energy consumption. Triple low-emissivity glazing showed the best performance in terms of heating energy required for a building with a sunspace.
JOURNAL OF ENERGY ENGINEERING
(2023)
Article
Environmental Sciences
Nemanja Petrovic, Jasmina Radosavljevic, Ana Vukadinovic, Aleksandar Kekovic, Natalija Petrovic
Summary: This research analyzes the simulation results of reference and prediction models of residential blocks using ENVI-met software. By introducing different types of greenery, the prediction models show varying air temperature and PET values compared to the reference model, leading to changes in thermal sensation and physiological stress.
POLISH JOURNAL OF ENVIRONMENTAL STUDIES
(2023)
Article
Engineering, Chemical
Danijela J. Stojadinovic, Amelija Dordevic, Ivan M. Krstic, Jasmina M. Radosavljevic
Summary: Technogenic risk is the result of accidents in the technosphere, which lead to the creation and development of hazards. This paper discusses vulnerability zones in the paints and varnishes industry, specifically the high lethality zone and the irreversible effects zone. The REHRA methodology is used to designate these zones, and their spatial arrangement assists in assessing and notifying the increased risk at the hazard location and/or the immediate vicinity to authorized institutions and the public.
HEMIJSKA INDUSTRIJA
(2023)
Article
Energy & Fuels
Siddharth Sradhasagar, Omkar Subhasish Khuntia, Srikanta Biswal, Sougat Purohit, Amritendu Roy
Summary: In this study, machine learning models were developed to predict the bandgap and its character of double perovskite materials, with LGBMRegressor and XGBClassifier models identified as the best predictors. These models were further employed to predict the bandgap of novel bismuth-based transition metal oxide double perovskites, showing high accuracy, especially in the range of 1.2-1.8 eV.
Article
Energy & Fuels
Wei Shuai, Haoran Xu, Baoyang Luo, Yihui Huang, Dong Chen, Peiwang Zhu, Gang Xiao
Summary: In this study, a hybrid model based on numerical simulation and deep learning is proposed for the optimization and operation of solar receivers. By applying the model to different application scenarios and considering multiple performance objectives, small errors are achieved and optimal structure parameters and heliostat scales are identified. This approach is not only applicable to gas turbines but also heating systems.
Article
Energy & Fuels
Mubashar Ali, Zunaira Bibi, M. W. Younis, Muhammad Mubashir, Muqaddas Iqbal, Muhammad Usman Ali, Muhammad Asif Iqbal
Summary: This study investigates the structural, mechanical, and optoelectronic properties of the BaCuF3 fluoroperovskite using the first-principles modelling approach. The stability and characteristics of different cubic structures of BaCuF3 are evaluated, and the alpha-BaCuF3 and beta-BaCuF3 compounds are found to be mechanically stable with favorable optical properties for solar cells and high-frequency UV applications.
Article
Energy & Fuels
Dong Le Khac, Shahariar Chowdhury, Asmaa Soheil Najm, Montri Luengchavanon, Araa mebdir Holi, Mohammad Shah Jamal, Chin Hua Chia, Kuaanan Techato, Vidhya Selvanathan
Summary: A novel recycling system is proposed in this study to decompose and reclaim the constituent materials of organic-inorganic perovskite solar cells (PSCs). By utilizing a one-step solution process extraction approach, the chemical composition of each layer is successfully preserved, enabling their potential reuse. The proposed recycling technique helps mitigate pollution risks, minimize waste generation, and reduce recycling costs.
Article
Energy & Fuels
Peijie Lin, Feng Guo, Xiaoyang Lu, Qianying Zheng, Shuying Cheng, Yaohai Lin, Zhicong Chen, Lijun Wu, Zhuang Qian
Summary: This paper proposes an open-set fault diagnosis model for PV arrays based on 1D VoVNet-SVDD. The model accurately diagnoses various types of faults and is capable of identifying unknown fault types.
