Article
Energy & Fuels
Matthijs Coninx, Jarne De Nies, Louis Hermans, Wouter Peere, Wim Boydens, Lieve Helsen
Summary: This study introduces an innovative method for cost-efficient borefield sizing that integrates active and passive cooling during the design phase. By using Bayesian optimization, the most cost-effective borefield size can be determined. The research shows that combining active and passive cooling can result in significant energy savings in air conditioning systems.
Article
Construction & Building Technology
Hyeonseong Yuk, Ho Hyeon Jo, Ji Yong Choi, Jihee Nam, Seong Jin Chang, Sumin Kim
Summary: Energy consumption and carbon emissions of historic buildings must be reduced in accordance with the 2030 carbon neutrality policy. This study aims to derive an optimal energy efficiency package for historic buildings by analyzing retrofit techniques and insulation materials. Based on onsite inspections, the roof retrofit technology scenario was evaluated to reduce energy loss while preserving the historical value of the building. Among six scenarios, the application of polyurethane insulation between battens showed the best energy-saving effect and economic feasibility.
BUILDING AND ENVIRONMENT
(2023)
Article
Thermodynamics
L. H. Saw, M. C. Yew, M. K. Yew, W. T. Chong, H. M. Poon, W. S. Liew, W. H. Yeo
Summary: This study introduces a closed loop pulsating heat pipe (CLPHP) roof cooling system, which is investigated for its thermal performance through experiments and comparison. The experiment results show that the cool roof system with CLPHP technology can significantly lower the attic temperature compared to the bare metal roof design, making it a promising method for improving thermal comfort in buildings.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Review
Green & Sustainable Science & Technology
Andi Taufan, Sheikh Ahmad Zaki, Ng Wai Tuck, Manoj Kumar Singh, Hom Bahadur Rijal
Summary: This study reviewed various retrofitting strategies implemented to improve mosque performance and found that optimizing design and operations can reduce energy consumption by half. The most substantial annual energy savings were observed by implementing a zoning strategy and an advanced air-conditioning design with intermittent operating system management to meet thermal comfort standards.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2023)
Article
Construction & Building Technology
Dongdong Tian, Jianshun Zhang, Zhi Gao
Summary: Cool roofs have a significant role in mitigating urban heat islands, improving indoor thermal comfort, and saving energy. This paper reviews the research progress and status of conventional cool roofs, super cool roofs, and temperature-adaptive roofs. The paper discusses the limitations and challenges in using cool roofs in different geographic and climatic conditions, as well as their effects on urban wind fields and pollutants.
ENERGY AND BUILDINGS
(2023)
Article
Energy & Fuels
Bruno Hadengue, Eberhard Morgenroth, Tove A. Larsen, Luca Baldini
Summary: In Switzerland, heat pumps are increasingly used to de-carbonize the building stock, with 70% using ambient air as heat source, although less efficient compared to ground or water-source heat pumps. A modeling study showed that utilizing domestic greywater can improve the efficiency of air-source heat pumps, with closed-loop systems showing the highest performance improvement potential.
Review
Green & Sustainable Science & Technology
R. P. Cunha, P. J. Bourne-Webb
Summary: This paper reviews the use of geothermal energy piles to improve the energy efficiency of buildings. Shallow geothermal energy systems are considered as a renewable source of energy, reducing harmful gas emissions and providing heating and cooling to buildings.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Thermodynamics
Y. Elaouzy, El Fadar
Summary: Renewable and bioclimatic techniques are crucial for sustainable buildings. The effectiveness of integrating PV, PVT, GSHP, and GR systems into a residential building in different Moroccan climates is investigated in this study. The simulations using EnergyPlus software showed that PV and PVT technologies performed the best in terms of energy, environment, and economics in all climates, while GSHP and GR techniques were beneficial in energy and environmental aspects but inefficient in economic terms. Carbon taxation had a positive impact on the economic benefits of these techniques. The findings can also be applied to other locations with similar climates and energy policies.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Engineering, Civil
Claudio Boni, Gianni Royer-Carfagni
Summary: Any seismic retrofitting plan on historical monuments must adhere to the principles of minimal intervention, recognizability, and reversibility. A feasibility study proposes a new type of glass-based bracing suitable for strengthening soft storeys with colonnades. The bracing, a laminated glass pane confined by a thin steel frame, offers stiffness, slimness, and transparency while being recognizable and reversible. The study also addresses important aspects such as stress concentration, correct placement, and connection to the existing structure, showing that a well-designed and positioned bracing system can enhance seismic capacity with minimal visual impact.
ENGINEERING STRUCTURES
(2023)
Article
Thermodynamics
M. Soltani, Pooya Farzanehkhameneh, Farshad Moradi Kashkooli, Armughan Al-Haq, Jatin Nathwani
Summary: The study optimized parameters of geothermal heat pump (GHP) system using genetic algorithm, reducing installation costs and improving energy efficiency over a ten-year simulation. Ethylene glycol was identified as the preferred circulating fluid for significant energy consumption reduction.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Green & Sustainable Science & Technology
Ali Mirzazade Akbarpoor, Amin Haghighi Poshtiri, Faraz Biglari
Summary: The study investigated an integrated cooling system consisting of an earth-to-air heat exchanger (EAHE) and a domed roof to provide thermal comfort and cooling demand for a building. Numerical simulations and experimental studies were conducted to assess system performance, showing significant energy savings and reduced CO2 emissions compared to traditional cooling systems. The integrated system demonstrated the ability to efficiently provide thermal comfort for different building types while minimizing environmental impact.
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)
Review
Environmental Sciences
Flannery Black-Ingersoll, Julie de Lange, Leila Heidari, Abgel Negassa, Pilar Botana, M. Patricia Fabian, Madeleine K. Scammell
Summary: This article reviews field studies on urban cooling interventions, including cooling centers, misting stations, cool pavements, and cool or green roofs. The studies found that misting stations and cool pavements can reduce temperatures, but there is still a lack of evaluation on personal thermal comfort and costs.
Article
Construction & Building Technology
Alessandro Franco, Lorenzo Miserocchi, Daniele Testi
Summary: This study evaluates the energy savings achievable by broadening the energy perspective to indoor air quality through occupants' monitoring and implementing optimal HVAC control. Dynamic simulation analysis applied to an academic building in Pisa shows that energy savings of up to 44% can be achieved, with a significant portion attributed to demand-controlled ventilation.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Green & Sustainable Science & Technology
Shreyash Raj Suwal, Arun Prasath Ramaswamy
Summary: The study focuses on the preparation of water-based new roof-cool paints and their utility in reducing temperature. The results show that the prepared roof-cool paints have a synergistic effect in reflecting light and rejecting heat, effectively reducing the internal temperature of the building. These coatings could lead to substantial energy savings from cooling comfort.
ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY
(2022)
Article
Energy & Fuels
Vasileios Ntouros, Ioannis Kousis, Anna Laura Pisello, Margarita Niki Assimakopoulos
Summary: Metal-organic frameworks (MOFs) have a wide range of applications, but there are few commercial examples to date. Advancements in MOF research are paving the way for new industrial opportunities. However, the fabrication of MOF materials within resistant structures is a significant challenge. This review critically explores recent advances in shaping and producing MOF macrostructures and suggests future paths for further development.
Article
Green & Sustainable Science & Technology
Fabiana Frota de Albuquerque Landi, Claudia Fabiani, Anna Laura Pisello, Alessandro Petrozzi, Daniele Milone, Franco Cotana
Summary: To increase food availability, optimizing production systems and reducing burdens related to human activities are essential. The study found that high-reflective mulching can increase tomato field productivity and offset the impact of additional emissions. The results suggest that this approach has several benefits in urban contexts.
Article
Green & Sustainable Science & Technology
Elena Tarpani, Cristina Piselli, Claudia Fabiani, Ilaria Pigliautile, Eelke J. Kingma, Benedetta Pioppi, Anna Laura Pisello
Summary: Energy communities are a promising strategy for global energy transition, and the EU has established regulatory frameworks to support their implementation. This study compares representative case studies from Italy and the Netherlands to analyze the differences between laggard and pioneer countries, and identifies five important pillars for the development and uptake of energy communities.
Article
Chemistry, Analytical
Veronica Martins Gnecco, Ilaria Pigliautile, Anna Laura Pisello
Summary: The improvement of comfort monitoring resources is crucial for a better understanding of personal perception and developing personalized comfort models, which maximize well-being while minimizing energy consumption.
Article
Energy & Fuels
Simone Forastiere, Cristina Piselli, Benedetta Pioppi, Carla Balocco, Fabio Sciurpi, Anna Laura Pisello
Summary: As the urgency to mitigate climate change intensifies, building retrofitting becomes crucial for achieving zero carbon targets. This paper proposes an approach that combines Building Information Modeling (BIM) with multiple domains to strive for zero carbon targets in building retrofit projects. The approach integrates indoor comfort, energy savings, CO2eq reduction, and the social cost of carbon in a dynamic multi-parameter analysis. It emphasizes renewable energy technologies and real-time monitoring mechanisms for continuous performance evaluation and adaptive retrofit strategies. The validated case study showcases significant reductions in energy consumption and carbon emissions, demonstrating the potential of the proposed approach in achieving zero carbon targets through multi-data BIM modeling.
Article
Energy & Fuels
Christiane Berger, Ardeshir Mahdavi, Eleni Ampatzi, Sarah Crosby, Runa T. Hellwig, Dolaana Khovalyg, Anna Laura Pisello, Astrid Roetzel, Adam Rysanek, Marika Vellei
Summary: Professionals in the building design and operation fields rely on standards and guidelines to ensure accountability and compliance. This paper examines the applicability and scientific validity of indoor environmental quality (IEQ) standards, specifically focusing on thermal comfort standards. By analyzing international and national standards, the paper assesses parameters, variables, and evidence from scientific literature. The findings highlight gaps in the evidence chain and contribute to the development of transparent and evidence-based thermal standards.
Article
Thermodynamics
Chiara Chiatti, Claudia Fabiani, Anna Laura Pisello
Summary: The expansion of buildings' floor area and the growing demand for lighting have led to an increase in lighting-related energy consumption. To mitigate the impacts of fossil fuels, the lighting sector has undergone renovation and adopted efficient LED solutions. This study investigates the response of photoluminescent pigments with different absorption and emission spectra to the specific spectral distribution of the excitation source. Results show that a yellow-emitting material is most suitable for lighting purposes, providing the highest luminance values and longest decay time.
Article
Energy & Fuels
Elisa Belloni, Franco Cotana, Shuji Nakamura, Anna Laura Pisello, Domenico Villacci
Summary: This paper presents an innovative smart lighting system based on blue-diode laser technology and photoluminescent pavements, which can achieve a self-lighting surface with a significant reduction in electricity consumption. Experimental results show that compared to standard LEDs, this system can save about 40% of electricity and has better luminance uniformity. Future improvements can be made on the smart laser system and pavement properties to further enhance energy efficiency and lighting conditions.
SUSTAINABLE ENERGY GRIDS & NETWORKS
(2023)
Article
Thermodynamics
Chiara Chiatti, Claudia Fabiani, Roberto Bondi, Giulia Zampini, Loredana Latterini, Anna Laura Pisello
Summary: With the accelerating global warming, there is a growing interest in passive radiative cooling solutions that can cool objects without consuming energy. This study examines the emission performance of combined phosphorescent (P) and fluorescent (F) pigments for use as radiative cooling materials. The results indicate that specific ratios of P and F pigments provide a balance between brightness and persistency, contributing to the development of effective radiative cooling solutions for mitigating global warming.
Article
Engineering, Multidisciplinary
I. Kousis, I Pigliautile, A. L. Pisello
Summary: Mobile monitoring provides high spatial resolution data in urban contexts, but efficient protocols are still a challenge. This study presents a transect monitoring methodology for urban thermal environment and air quality, with a specific protocol for monitoring days and post-process corrections. The method is simple yet comprehensive and can be applied in any city and urban context.
Article
Green & Sustainable Science & Technology
F. Marchini, C. Chiatti, C. Fabiani, A. L. Pisello
Summary: Glazed envelopes play a crucial role in a building's environmental performance, impacting indoor comfort and energy consumption while allowing natural light to enter the space. This study introduces photoluminescent materials as an innovative coating for smart window applications, exploring their potential for visual comfort. Experimental and numerical simulations show that a translucent-photoluminescent solution can provide homogeneous daylight diffusion and reduce glare perception.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2023)
Review
Materials Science, Multidisciplinary
Ioannis Kousis, Anna Laura Pisello
Summary: Daytime Radiative Cooling is an effective passive cooling technique with potential for improving energy efficiency and promoting decarbonization. This review discusses the advancements and main attributes of different types of Daytime Radiative Coolers, and highlights research gaps in scaling up and investigating their effects on indoor thermal comfort.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Chemistry, Physical
Ioannis Kousis, Roberto D'Amato, Anna Laura Pisello, Loredana Latterini
Summary: Traditional cooling and heating systems in residential buildings contribute to a significant portion of global electricity consumption and greenhouse gas emissions. Daytime radiative cooling (DRC) is an emerging cooling technology that has gained attention for its high cooling capability. However, there are several challenges that need to be addressed in order to establish its wide-scale application in the built environment.
ACS ENERGY LETTERS
(2023)
Article
Green & Sustainable Science & Technology
Claudia Fabiani, Fabiana Frota de Albuquerque Landi, Luisa F. Cabeza, Anna Laura Pisello
Summary: Greenhouse gas emissions reduction is an important topic, but researchers themselves engage in activities that have a significant environmental impact. The study found that besides travel, catering, meeting structures, and hosting support also contribute to emissions. Choosing conference locations and providing public transportation options are crucial in reducing the impact of emissions. Additionally, using local distributors and reducing hotel stays can lessen the environmental burden. While online meetings have positive feedback, in-person activities are more effective in reinforcing human bonds and collaborations.
SUSTAINABILITY SCIENCE
(2023)
Proceedings Paper
Computer Science, Software Engineering
Costanza Borghesi, Claudia Fabiani, Anna Laura Pisello, Giacomo Giorgi
Summary: In this study, we performed first-principles calculations to compare the confinement effects in two ABO(3)-perovskite materials, SrTiO3 and BaSnO3. The motivation behind this research is to find novel materials for daytime radiative cooling devices, which passively cool down the temperature of sky facing objects such as buildings. We calculated the bandstructures of 3D, 2D, and 0D systems using density functional theory and meta-GGA methods, and discussed the pros and cons of both approaches. Finally, we discussed the potential applicability of 0D species with a large direct bandgap as materials for radiative cooling.
COMPUTATIONAL SCIENCE AND ITS APPLICATIONS, ICCSA 2022 WORKSHOPS, PT VI
(2022)
Article
Energy & Fuels
Shitong Fang, Houfan Du, Tao Yan, Keyu Chen, Zhiyuan Li, Xiaoqing Ma, Zhihui Lai, Shengxi Zhou
Summary: This paper proposes a new type of nonlinear VIV energy harvester (ANVEH) that compensates for the decrease in peak energy output at low wind speeds by introducing an auxiliary structure. Theoretical and experimental results show that ANVEH performs better than traditional nonlinear VIV energy harvesters under various system parameter variations.
Article
Energy & Fuels
Wei Jiang, Shuo Zhang, Teng Wang, Yufei Zhang, Aimin Sha, Jingjing Xiao, Dongdong Yuan
Summary: A standardized method was developed to evaluate the availability of solar energy resources in road areas, which combined the Analytic Hierarchy Process (AHP) and the Geographic Information System (GIS). By analyzing critical factors and using a multi-indicator evaluation method, the method accurately evaluated the utilization of solar energy resources and guided the optimal location selection for road photovoltaic (PV) projects. The results provided guidance for the application of road PV projects and site selection for route corridors worldwide, promoting the integration of transportation and energy.
Article
Energy & Fuels
Chang Liu, Jacob A. Wrubel, Elliot Padgett, Guido Bender
Summary: The study investigates the effects of coating defects on the performance of the anode porous transport layer (PTL) in water electrolyzers. The results show that an increasing fraction of uncoated regions on the PTL leads to decreased cell performance, with continuous uncoated regions having a more severe impact compared to multiple thin uncoated strips.
Article
Energy & Fuels
Marcos Tostado-Veliz, Xiaolong Jin, Rohit Bhakar, Francisco Jurado
Summary: In this paper, a coordinated charging price mechanism for clusters of parking lots is proposed. The research shows that enabling vehicle-to-grid characteristics can bring significant economic benefits for users and the cluster coordinator, and vehicle-to-grid impacts noticeably on the risk-averse character of the uncertainty-aware strategies. The developed pricing mechanism can reduce the cost for users, avoiding to directly translate the energy cost to charging points.
Article
Energy & Fuels
Duan Kang
Summary: Building an energy superpower is a key strategy for China and a long-term goal for other countries. This study proposes an evaluation system and index for measuring energy superpower, and finds that China has significantly improved its ranking over the past 21 years, surpassing other countries.
Article
Energy & Fuels
Fucheng Deng, Yifei Wang, Xiaosen Li, Gang Li, Yi Wang, Bin Huang
Summary: This study investigated the synergistic blockage mechanism of sand and hydrate in gravel filling layer and the evolution of permeability in the layer. Experimental models and modified permeability models were established to analyze the effects of sand particles and hydrate formation on permeability. The study provided valuable insights for the safe and efficient exploitation of hydrate reservoirs.
Article
Energy & Fuels
Hao Wang, Xiwen Chen, Natan Vital, Edward Duffy, Abolfazl Razi
Summary: This study proposes a HVAC energy optimization model based on deep reinforcement learning algorithm. It achieves 37% energy savings and ensures thermal comfort for open office buildings. The model has a low complexity, uses a few controllable factors, and has a short training time with good generalizability.
Article
Energy & Fuels
Moyue Cong, Yongzhuo Gao, Weidong Wang, Long He, Xiwang Mao, Yi Long, Wei Dong
Summary: This study introduces a multi-strategy ultra-wideband energy harvesting device that achieves high power output without the need for external power input. By utilizing asymmetry, stagger array, magnetic coupling, and nonlinearity strategies, the device maintains a stable output voltage and high power density output at non-resonant frequencies. Temperature and humidity monitoring are performed using Bluetooth sensors to adaptively assess the device.
Article
Energy & Fuels
Tianshu Dong, Xiudong Duan, Yuanyuan Huang, Danji Huang, Yingdong Luo, Ziyu Liu, Xiaomeng Ai, Jiakun Fang, Chaolong Song
Summary: Electrochemical water splitting is crucial for hydrogen production, and improving the hydrogen separation rate from the electrode is essential for enhancing water electrolyzer performance. However, issues such as air bubble adhesion to the electrode plate hinder the process. Therefore, a methodology to investigate the two-phase flow within the electrolyzer is in high demand. This study proposes using a microfluidic system as a simulator for the electrolyzer and optimizing the two-phase flow by manipulating the micro-structure of the flow.
Article
Energy & Fuels
Shuo Han, Yifan Yuan, Mengjiao He, Ziwen Zhao, Beibei Xu, Diyi Chen, Jakub Jurasz
Summary: Giving full play to the flexibility of hydropower and integrating more variable renewable energy is of great significance for accelerating the transformation of China's power energy system. This study proposes a novel day-ahead scheduling model that considers the flexibility limited by irregular vibration zones (VZs) and the probability of flexibility shortage in a hydropower-variable renewable energy hybrid generation system. The model is applied to a real hydropower station and effectively improves the flexibility supply capacity of hydropower, especially during heavy load demand in flood season.
Article
Energy & Fuels
Zhen Wang, Kangqi Fan, Shizhong Zhao, Shuxin Wu, Xuan Zhang, Kangjia Zhai, Zhiqi Li, Hua He
Summary: This study developed a high-performance rotary energy harvester (AI-REH) inspired by archery, which efficiently accumulates and releases ultralow-frequency vibration energy. By utilizing a magnetic coupling strategy and an accumulator spring, the AI-REH achieves significantly accelerated rotor speeds and enhanced electric outputs.
Article
Energy & Fuels
Yi Yang, Qianyi Xing, Kang Wang, Caihong Li, Jianzhou Wang, Xiaojia Huang
Summary: In this study, a novel hybrid Quantile Regression (QR) model is proposed for Probabilistic Load Forecasting (PLF). The model integrates causal dilated convolution, residual connection, and Bidirectional Long Short-Term Memory (BiLSTM) for multi-scale feature extraction. In addition, a Combined Probabilistic Load Forecasting System (CPLFS) is proposed to overcome the inherent flaws of relying on a single model. Simulation results show that the hybrid QR outperforms traditional models and CPLFS exceeds the best benchmarks in terms of prediction accuracy and stability.
Article
Energy & Fuels
Wen-Jiang Zou, Young-Bae Kim, Seunghun Jung
Summary: This paper proposes a dynamic prediction model for capacity fade in vanadium redox flow batteries (VRFBs). The model accurately predicts changes in electrolyte volume and capacity fade, enhancing the competitiveness of VRFBs in energy storage applications.
Article
Energy & Fuels
Yuechao Ma, Shengtie Wang, Guangchen Liu, Guizhen Tian, Jianwei Zhang, Ruiming Liu
Summary: This paper focuses on the balance of state of charge (SOC) among multiple battery energy storage units (MBESUs) and bus voltage balance in an islanded bipolar DC microgrid. A SOC automatic balancing strategy is proposed considering the energy flow relationship and utilizing the adaptive virtual resistance algorithm. The simulation results demonstrate the effectiveness of the proposed strategy in achieving SOC balancing and decreasing bus voltage unbalance.
Article
Energy & Fuels
Raad Z. Homod, Basil Sh. Munahi, Hayder Ibrahim Mohammed, Musatafa Abbas Abbood Albadr, Aissa Abderrahmane, Jasim M. Mahdi, Mohamed Bechir Ben Hamida, Bilal Naji Alhasnawi, A. S. Albahri, Hussein Togun, Umar F. Alqsair, Zaher Mundher Yaseen
Summary: In this study, the control problem of the multiple-boiler system (MBS) is formulated as a dynamic Markov decision process and a deep clustering reinforcement learning approach is applied to obtain the optimal control policy. The proposed strategy, based on bang-bang action, shows superior response and achieves more than 32% energy saving compared to conventional fixed parameter controllers under dynamic indoor/outdoor actual conditions.
