Article
Construction & Building Technology
Mingming Wu, Chenzhen Liu, Zhonghao Rao
Summary: This study proposes the application of phase change materials in ceramic tiles to solve the problem of high energy consumption in buildings. By increasing thermal capacity and improving thermal response speed, this method can enhance indoor thermal comfort and reduce energy consumption.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Construction & Building Technology
Mingming Wu, Chenzhen Liu, Zhonghao Rao
Summary: This study focuses on the application of PCMs in buildings to improve indoor thermal capacity and reduce high energy consumption. By incorporating PCM in ceramic tiles and testing its thermal performance, the research demonstrates the effectiveness of this method in enhancing thermal comfort and energy saving.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Green & Sustainable Science & Technology
Sheng Zhang, Pawel Oclon, Jiri Jaromir Klemes, Piotr Michorczyk, Kinga Pielichowska, Krzysztof Pielichowski
Summary: This paper introduces the recent developments in Renewable Energy Systems for building heating, cooling and electricity production with thermal energy storage. The buildings contribute about 40% of total energy consumption, with significant potential for primary energy savings. The application of various Renewable Energy based systems is discussed including: the presentation of Hybrid Renewable Energy bases systems, methodology for their design and methods for the optimisation of Buildings RES.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Review
Chemistry, Multidisciplinary
Christina V. Podara, Ioannis A. Kartsonakis, Costas A. Charitidis
Summary: Managing energy consumption in the building sector is crucial, with the use of PCMs (phase change materials) seen as a solution for improving energy performance. Thermal energy storage systems with PCMs can reduce fuel and electrical energy consumption while maintaining a comfortable building environment.
APPLIED SCIENCES-BASEL
(2021)
Review
Chemistry, Multidisciplinary
Mohamed Sawadogo, Marie Duquesne, Rafik Belarbi, Ameur El Amine Hamami, Alexandre Godin
Summary: Passive latent heat storage for building applications utilizes phase change materials (PCMs) to reduce energy consumption and provide thermal comfort. Integration of PCMs in building envelopes can reduce peak temperature and smooth thermal load, but challenges remain in studying long-term stability, moisture, mass transfer, and actual building use. The use of fatty acids and eutectic mixtures in shape-stabilized PCMs composites shows potential for improving efficiency of passive systems.
APPLIED SCIENCES-BASEL
(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
Guo Li, Guoqiang Xu, Zhiyi Tao
Summary: The study experimentally tested the thermal performance of slag silicate cement mortar thermal storage blocks with the addition of phase change materials. The results demonstrated that the addition of microencapsulated phase change materials significantly decreased the density of the mortar and affected its thermal conductivity and thermal diffusion coefficient.
Article
Thermodynamics
Osman Gencel, Abid Ustaoglu, Ahmet Sari, Gokhan Hekimoglu, Mucahit Sutcu, Ayhan Tozluoglu, Ahmet Tutus, Mustafa Cicekler, Vineet Veer Tyagi
Summary: This study introduces a novel wall-covering element made of wallpapers impregnated with Phase Change Material (PCM) to enhance thermal properties and provide effective thermal regulation in interior spaces. The results show that the impregnated wallpapers significantly reduce interior room temperature fluctuations and maintain indoor temperature longer within a comfortable range.
THERMAL SCIENCE AND ENGINEERING PROGRESS
(2023)
Review
Construction & Building Technology
Mahendran Samykano
Summary: The article discusses the growing energy requirements in modern life and the concerns about its environmental impact and rising costs. It explores the potential of photovoltaic thermal systems (PVT) in capturing electrical and thermal energy from solar radiation. The application of phase change materials and nano-improved phase change materials (NEPCMs) in PVT systems is examined for optimizing energy extraction. The article provides a comprehensive overview of PVT techniques and their advantages, such as reduced electricity consumption and enhanced thermal comfort. The integration of NEPCMs in PVT systems shows superior thermal performance and the potential to mitigate CO2 emissions compared to conventional PV systems.
Article
Thermodynamics
Achutha Tamraparni, Alison Hoe, Michael Deckard, Chen Zhang, Nathan Malone, Alaa Elwany, Patrick J. Shamberger, Jonathan R. Felts
Summary: Phase change materials store thermal energy as latent heat and can be combined with high thermal conductivity metals to create composites with high power density and large energy storage capacity. This study provides a theoretical framework to design and optimize cylindrical composites with three figures of merit - minimization of temperature rise, maximization of effective volumetric heat capacity, and maximization of effective heat capacity based on mass.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2023)
Article
Energy & Fuels
F. Javier Batlles, Antonio M. Puertas, Manuel S. Romero-Cano, Sabina Rosiek, Bartosz Gil, Jacek Kasperski, Artur Nems, Magdalena Nems, Mario Grageda, Svetlana Ushak, Marcos Lujan, Diana Maldonado
Summary: The study compared the performance of different thermal energy storing systems in providing overnight air-conditioning for a limited space in a building in south Spain, finding that storing in phase change materials (PCM) is more convenient with significant reduction of electricity consumption. In winter, the tanks can fully meet the demand for overnight heating.
Review
Construction & Building Technology
Dehong Li, Biaorong Zhuang, Yuchen Chen, Bin Li, Veronic Landry, Alireza Kaboorani, Zhenzeng Wu, Xiaodong Alice Wang
Summary: This article comprehensively reviews the application of bio-based phase change materials (BPCMs) in energy storage, discusses the incorporation technology of BPCMs, and highlights the issues that require further research.
ENERGY AND BUILDINGS
(2022)
Review
Energy & Fuels
Sandra Cunha, Antonella Sarcinella, Jose Aguiar, Mariaenrica Frigione
Summary: The construction industry plays a major role in high energy consumption, particularly in heating and cooling needs of buildings. This has gained significant attention from the scientific community, governments, and authorities worldwide, especially in the European Union, due to recent international conflicts that prompted countries to reconsider their energy policies. Historic energy consumption has heavily relied on non-renewable sources like natural gas, oil, and coal. Urgent measures are needed to minimize these high-energy consumptions and transition towards clean and renewable energy sources. In recent years, phase change materials (PCM) have garnered significant interest and development for their ability to reduce energy consumption in buildings by utilizing solar energy through thermal storage. This study provides a perspective on the evolution and application of thermal storage technology with the incorporation of PCM in the construction sector, focusing on the latest 10 years of research and showcasing recent developments in application across construction materials such as mortars, concrete, porous aggregates, naturally-based materials, carbon-based materials, boards, blocks, and solar thermal systems.
Article
Biochemistry & Molecular Biology
Andreas Thangam, Amar Auckaili, Mohammed Farid
Summary: This study investigated the impact of individual and combination of different sources of heating in a building containing phase change material (PCM) for a potential reduction in energy consumption while maintaining thermal comfort. The study found that combining active and passive solar heating with temperature-controlled electric oil heater can provide significant energy savings and maintain thermal comfort.
Article
Energy & Fuels
Dongyao Zhang, Chuanchang Li, Niangzhi Lin, Baoshan Xie, Jian Chen
Summary: Composite phase change materials were synthesized from KH-550-decorated mica and poly-ethylene glycol by vacuum impregnation method, with the addition of expanded graphite to improve thermal conductivity and storage capacity. The Md/EG/PEG composite showed enhanced thermal stability and potential for energy conservation in buildings.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Thermodynamics
Zisis Malliotakis, Colin Banyon, Kuiwen Zhang, Scott Wagnon, Jose Juan Rodriguez Henriquez, George Vourliotakis, Christos Keramiotis, Maria Founti, Fabian Mauss, William J. Pitz, Henry Curran
COMBUSTION AND FLAME
(2019)
Article
Thermodynamics
Zisis Malliotakis, Nicolas Leplat, George Vourliotakis, Christos Keramiotis, George Skevis, Maria A. Founti, Jacques Vandooren
COMBUSTION SCIENCE AND TECHNOLOGY
(2019)
Article
Chemistry, Physical
Martin Hilbig, Zisis Malliotakis, Lars Seidel, George Vourliotakis, Christos Keramiotis, Fabian Mauss, Maria Founti
INTERNATIONAL JOURNAL OF CHEMICAL KINETICS
(2019)
Article
Energy & Fuels
Ioannis Atsonios, Ioannis Mandilaras, Maria Founti
Article
Energy & Fuels
Praseeth Prabhakaran, Dimitrios Giannopoulos, Wolfgang Koeppel, Ushnik Mukherjee, Gopal Remesh, Frank Graf, Dimosthenis Trimis, Thomas Kolb, Maria Founti
JOURNAL OF ENERGY STORAGE
(2019)
Article
Energy & Fuels
Grusche J. Seithe, Alexandra Bonou, Dimitrios Giannopoulos, Chariklia A. Georgopoulou, Maria Founti
Article
Energy & Fuels
Michaela Detsi, Aris Manolitsis, Ioannis Atsonios, Ioannis Mandilaras, Maria Founti
Article
Materials Science, Multidisciplinary
Eleni K. Asimakopoulou, Dionysios I. Kolaitis, Maria A. Founti
FIRE AND MATERIALS
(2020)
Article
Engineering, Chemical
Olympios Alifieris, Dimitrios Katsourinis, Dimitrios Giannopoulos, Maria Founti
Summary: This study introduces a combined process modeling-Life Cycle Assessment approach to evaluate the production of green Cr2O3 ceramic pigments, finding that the majority of emissions originate from upstream production and transportation of raw materials.
Article
Energy & Fuels
Theofanis D. Hountalas, Maria Founti, Theodoros C. Zannis
Summary: A comparative analysis was conducted to study the performance and combustion mechanism of dual fuel and diesel mode for high-pressure natural gas injection engine. The study found that the dual fuel mode improved specific fuel consumption by 1.8% under low load operation and showed differences in combustion process. However, the overall performance of the dual fuel operation was close to that of conventional diesel, achieving similar efficiency standards while reducing CO2 emissions.
Review
Energy & Fuels
Theofanis D. Chountalas, Maria Founti, Dimitrios T. Hountalas
Summary: The International Maritime Organization aims to reduce carbon emissions in the maritime industry by 40% within the next two decades and has implemented measures to control CO2 emissions. Interest in biofuels has increased significantly due to their immediate applicability in existing vessels, which helps to reduce their carbon footprint. B30, a blend of 70% crude oil and 30% biodiesel, is the most commonly used variant. However, concerns regarding engine performance and NOx emissions exist. While there is limited scientific research on two-stroke marine engines, there are some studies available for four-stroke engines, particularly auxiliaries. This work reviews the results of tests conducted on various marine engine types, including two-stroke propulsion and four-stroke auxiliary units, using B30 and conventional fuels. The impact on emissions and fuel efficiency is analyzed and compared with existing literature. It was observed that the use of B30 led to a small increase in specific fuel consumption, with variations depending on the engine type: an average increase of 1% for two-stroke engines and 2.5% for four-stroke engines. The effect on NOx emissions was low but varied across engines. For low-speed two-stroke engines, there was an average increase of 4% compared to crude oil, while for four-stroke auxiliary units, the increase was 2.4%, although with higher variance. Some four-stroke units showed a decrease in emissions. Overall, the findings of this study align with other published research, suggesting that 30% biodiesel blends can be used without concerns about emissions and fuel efficiency.
Article
Ecology
Dionysios I. Kolaitis, Christos Pallikarakis, Maria A. Founti
Summary: Wildland fire rate of spread prediction models are important tools for coordinating evacuations and fire suppression efforts. In this study, ten prediction models were evaluated using 203 laboratory experiments, with a focus on the effects of wind velocity. The models developed in the laboratory showed high sensitivity to low fuel load, no wind conditions, and low packing ratios with high wind velocity. The field-developed models had significant discrepancies due to specific parameters used for fuel type, scale, and wind velocity.
Article
Thermodynamics
Theofanis D. Chountalas, Maria Founti, Ioannis Tsalavoutas
Summary: An extended experimental investigation was conducted on a commercial vessel's electronically controlled slow-speed 2-stroke engine to study the effect of biofuels on engine performance, combustion mechanism, and emissions. The results showed minimal impact on performance and combustion for a 30% biofuel blend, slightly reduced fuel efficiency, and a small increase in NOx emissions compared to traditional fuels. It is concluded that the blend can be used in electronically controlled 2-stroke engines with minimal effects on engine performance and fuel consumption.
Article
Construction & Building Technology
Parth Bansal, Steven Jige Quan
Summary: This study investigates the relationship between urban form and canopy layer urban heat island (CUHI) using a relatively large sample of microclimate sensors in Seoul, Korea. The study compares different statistical models and finds that the spatially explicit gradient boosting decision tree (GBDT) model has the highest accuracy. The study also shows that the effect of urban form on CUHI varies at different time instances during the day. These findings provide valuable insights for planners to understand the complexity of urban climate and reduce CUHI magnitude.
BUILDING AND ENVIRONMENT
(2024)
Article
Construction & Building Technology
Miaomiao Liu, Salah Almazmumi, Pinlu Cao, Carlos Jimenez-bescos, John Kaiser Calautit
Summary: Windcatchers provide effective low-energy ventilation and summer passive cooling in temperate climates. However, their use in winter is limited due to significant ventilation heat loss and potential discomfort. This study evaluates the applicability of windcatchers in low-temperature conditions, highlighting the need for control strategies to reduce over-ventilation and the integration of heat recovery or thermal storage to enhance winter thermal conditions.
BUILDING AND ENVIRONMENT
(2024)
Review
Construction & Building Technology
Behrouz Nourozi, Aneta Wierzbicka, Runming Yao, Sasan Sadrizadeh
Summary: This article presents a systematic review of ventilation solutions in hospital wards, aiming to enhance pathogen removal performance while maintaining patient and healthcare staff comfort using air-cleaning techniques. The study reveals the importance of proper ventilation systems in reducing infection risk and adverse effects of cross-contamination.
BUILDING AND ENVIRONMENT
(2024)
Article
Construction & Building Technology
Zhen Yang, Weirong Zhang, Hongkai Liu, Weijia Zhang, Mingyuan Qin
Summary: The study examines the influence of personalized local heating on the thermal comfort of occupants in old residential buildings. The findings reveal that personalized local heating can increase the overall thermal sensation of occupants, but only a few methods are effective in enhancing thermal comfort. The chosen heating methods and background temperature affect the participants' selection of heating parts.
BUILDING AND ENVIRONMENT
(2024)
Article
Construction & Building Technology
Hong Cheng, Dan Norback, Huilin Zhang, Liu Yang, Baizhan Li, Yinping Zhang, Zhuohui Zhao, Qihong Deng, Chen Huang, Xu Yang, Chan Lu, Hua Qian, Tingting Wang, Ling Zhang, Wei Yu, Juan Wang, Xin Zhang
Summary: The home environment and sick building syndrome (SBS) symptoms in five southern Chinese cities have been studied over time. The study found a decrease in asthma prevalence and an increase in allergic rhinitis. Cockroaches, rats, mice, mosquitoes or flies were identified as consistent biological risk factors for SBS symptoms, while redecoration, buying new furniture, and traffic air pollution were identified as other risk factors.
BUILDING AND ENVIRONMENT
(2024)
Article
Construction & Building Technology
Chaojie Xing, Zhengtao Ai, Zhiwei Liu, Cheuk Ming Mak, Hai Ming Wong
Summary: This study experimentally investigated the emission characteristics of droplets around the mouth during dental treatments. The results showed that the peak mass fraction of droplets occurs within the size range of 20 μm to 100 μm, and droplets with a diameter less than 200 μm account for over 80% of the mass fraction. The dominant emission direction of droplets is towards the dummy's head and chest, forming an approximately cone shape.
BUILDING AND ENVIRONMENT
(2024)
Article
Construction & Building Technology
Zhijian Liu, Zhe Han, Lina Hu, Chenxing Hu, Rui Rong
Summary: This study compared the effects of different respiratory behaviors on the distribution of aerosols in a ward and the risk of infection for healthcare workers using numerical simulation. It was found that talking in the ward significantly increased aerosol concentrations, particularly short periods of talking. Wards designed with side-supply ventilation had lower overall infection risk. Talking alternately between healthcare workers and patients slightly extended the impact time of aerosols.
BUILDING AND ENVIRONMENT
(2024)
Article
Construction & Building Technology
Yan Yan, Mengyuan Kang, Haodong Zhang, Zhiwei Lian, Xiaojun Fan, Chandra Sekhar, Pawel Wargocki, Li Lan
Summary: In a high-density city, opening windows for sleep may lead to increased indoor temperature, higher PM2.5 concentration, and noise disturbance, which can negatively impact sleep quality.
BUILDING AND ENVIRONMENT
(2024)
Article
Construction & Building Technology
Yan Bai, Liang Liu, Kai Liu, Shuai Yu, Yifan Shen, Di Sun
Summary: This study developed a non-intrusive personal thermal comfort model using machine learning techniques combined with infrared facial recognition. The results showed that the ensemble learning models perform better than traditional models, and the broad learning model has a higher prediction precision with lower computational complexity and faster training speed compared to deep neural networks. The findings provide a reference for optimizing building thermal environments.
BUILDING AND ENVIRONMENT
(2024)
Article
Construction & Building Technology
Yue Lei, Zeynep Duygu Tekler, Sicheng Zhan, Clayton Miller, Adrian Chong
Summary: Mixed-mode ventilation is a promising solution for achieving energy-efficient and comfortable indoor environments. This study found that occupants can thermally adapt when switching between natural ventilation (NV) and air-conditioning (AC) modes within the same day, with the adaptation process stabilizing between 35 to 45 minutes after the mode switch. These findings are important for optimizing thermal comfort in mixed-mode controls, considering the dynamic nature of thermal adaptation.
BUILDING AND ENVIRONMENT
(2024)
Article
Construction & Building Technology
Nan Mo, Jie Han, Yingde Yin, Yelin Zhang
Summary: This study develops a method based on the LCZ framework for a comprehensive evaluation of urban-scale heat island effects, considering the impact of geographic factors on LST. The results show that Guilin's geomorphological conditions lead to abnormal heat island effects during winter, and the cooling effects of mountains and water bodies vary seasonally in different built areas, with LCZ 2 exhibiting the strongest cooling effect.
BUILDING AND ENVIRONMENT
(2024)
Article
Construction & Building Technology
Tunga Salthammer
Summary: Monitoring the potential formaldehyde emission of wood-based materials through test chamber investigations has significantly contributed to reducing indoor formaldehyde concentrations. However, the different methodologies used in these procedures prevent direct result comparison. Empirical models for converting formaldehyde steady-state concentrations based on temperature, humidity, air change rate, and loading were developed in the 1970s and have been modified to accommodate the development of lower-emitting materials. Formaldehyde emissions from wood-based materials are complex and require nonlinear regression tools for mathematical analysis.
BUILDING AND ENVIRONMENT
(2024)
Article
Construction & Building Technology
Katarina Stebelova, Katarina Kovacova, Zuzana Dzirbikova, Peter Hanuliak, Tomas Bacigal, Peter Hartman, Andrea Vargova, Jozef Hraska
Summary: This study investigated the impact of reduced short-wavelength light on the hormone melatonin metabolite 6-sulfatoxymelatonin (u-sMEL) and examined the association between previous day's light exposure and u-sMEL. It was found that reducing short-wavelength light during the day did not change the concentration of u-sMEL. Personal photopic illuminance was positively correlated with u-sMEL in the reference week. The illuminance had a significant impact on u-sMEL, as shown by the evaluation of the mean of all three urine samples. However, this correlation was not found in the experimental week.
BUILDING AND ENVIRONMENT
(2024)
Article
Construction & Building Technology
Ruoxin Xiong, Ying Shi, Haoming Jing, Wei Liang, Yorie Nakahira, Pingbo Tang
Summary: This study proposes a data-model integration method to identify and calibrate uncertainties in machine learning models, leading to improved thermal perception predictions. The method utilizes the Multidimensional Association Rule Mining algorithm to identify biased human responses and enhances prediction accuracy and reliability. The study also evaluates different calibration techniques and discovers their potential in enhancing prediction reliability.
BUILDING AND ENVIRONMENT
(2024)
Article
Construction & Building Technology
Beichao Hu, Zeda Yin, Abderrachid Hamrani, Arturo Leon, Dwayne McDaniel
Summary: This paper introduces an innovative super-resolution approach to model the air flow and temperature field in the cold aisle of a data center. The proposed method reconstructs a high-fidelity flow field by using a low-fidelity flow field, significantly reducing the computational time and enabling real-time prediction.
BUILDING AND ENVIRONMENT
(2024)