Article
Construction & Building Technology
Heike Schreiber, Zahra Jandaghian, Bas Baskaran
Summary: The energy performance of residential roofs is crucial for net-zero-energy homes in Canada, but measures to increase it must consider factors such as structural integrity and building health. Air tightness, attic ventilation, and insulation requirements are the main factors influencing energy performance.
ENERGY AND BUILDINGS
(2021)
Article
Engineering, Multidisciplinary
JiaZhen He, YeHu Lu, WenZhen Su, FangMing Wang, WenFang Song, LaiLi Wang, Min Wang
Summary: Maintaining thermal comfort in cold indoor environments is important, and using advanced clothing such as an air inflatable suit can effectively improve personal thermal management. The air-inflated suit not only increases clothing thermal insulation but also alleviates cold strain and provides higher skin and body temperatures. This technology can significantly reduce energy consumption and greenhouse gas emissions.
SCIENCE CHINA-TECHNOLOGICAL SCIENCES
(2023)
Review
Construction & Building Technology
Yazeed Al-Radhi, Krishanu Roy, Hao Liang, Kushal Ghosh, G. Charles Clifton, James B. P. Lima
Summary: The majority of residential dwellings in New Zealand are made of timber, but recent attention has been given to new construction techniques and materials to improve thermal performance. A systematic literature review of over 190 papers indicates that New Zealand has yet to adopt some new technologies, such as concrete and phase change materials, for construction materials, as well as thermally activated building systems. The paper concludes by summarizing the findings and their applicability to the New Zealand construction industry.
JOURNAL OF BUILDING ENGINEERING
(2023)
Review
Energy & Fuels
Aikaterina Karanafti, Theodoros Theodosiou, Katerina Tsikaloudaki
Summary: Thermal insulation is a fundamental strategy for achieving nZEB and mitigating climate change effects. The concept of dynamic thermal insulation, or variable thermal insulation, is gaining increasing interest in the building sector. Optimizing the envelope's thermal insulation based on the actual needs of the building can improve its energy efficiency, but further research is needed before practical implementation.
Article
Green & Sustainable Science & Technology
Wenfang Song, Yehu Lu, Wenzhen Su, Fangming Wang, Min Wang
Summary: A novel air inflatable garment (AirIG) using natural air as thermal insulator was developed. Experimental results showed that increasing air inflation volumes improved the thermal insulation performance of AirIG.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Engineering, Geological
Shikang Qin, Caichu Xia, Shuwei Zhou
Summary: During the operation of a compressed air storage energy system, the changes in air pressure in a cavern affect the air tightness of the polymer sealing layer. By studying the high-pressure air penetration and establishing a model, the air tightness of the cavern can be understood. The air tightness of the polymer sealing cavern is influenced by the cavern operating pressure, injected air temperature, cavern radius, and sealing layer thickness.
JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING
(2023)
Article
Construction & Building Technology
Tunde Kalmar, Ferenc Kalmar
Summary: As buildings become more airtight to meet energy performance requirements, natural ventilation methods are commonly used in residential buildings to provide appropriate indoor air quality. Due to the impact of the COVID-19 pandemic, many individuals have transitioned to working from home, leading to the need to adjust indoor ventilation systems to save energy consumption.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Thermodynamics
Mohammad Fawaier, Balazs Bokor, Miklos Horvath
Summary: This study evaluates the performance of transpired solar collectors in several European cities, focusing on solar air heating and recapture of transmission heat loss through walls. The findings suggest a promising result for using transpired solar collectors as a dynamic insulation solution for energy savings.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Review
Construction & Building Technology
Mohammad Fawaier, Balazs Bokor
Summary: Dynamic insulation is a method that allows the heat transmission rate through building envelopes to vary over time. This paper collects and assesses literature on different dynamic insulation structures and compares mathematical models, experimental studies, and numerical simulations. The results show that dynamic insulation can achieve low heat loss and significant energy savings.
ENERGY AND BUILDINGS
(2022)
Article
Construction & Building Technology
Huijun Wu, Yuying Liang, Jianming Yang, Jian Cen, Xianyong Zhang, Lei Xiao, Ruibing Cao, Gongsheng Huang
Summary: This study investigates the nonuniform distribution of thermal resistance and capacitance in exterior walls built with superthermal aerogel insulating panels. By using a thermal nonuniformity factor, the researchers explore how to engineer the wall to improve energy efficiency. The results show that walls with a high nonuniformity factor can greatly decrease wall heat flux.
ENERGY AND BUILDINGS
(2022)
Article
Green & Sustainable Science & Technology
Chenxi Sui, Jiankun Pu, Ting-Hsuan Chen, Jiawei Liang, Yi-Ting Lai, Yunfei Rao, Ronghui Wu, Yu Han, Keyu Wang, Xiuqiang Li, Venkatasubramanian Viswanathan, Po-Chun Hsu
Summary: Electrochromism allows for the control of light transmittance to increase building energy efficiency. It can reduce the energy consumption for HVAC systems in buildings and contribute to climate change mitigation. Aqueous flexible electrochromic design with tunable emissivity based on graphene and reversible copper electrodeposition has been developed, showing excellent long-term durability.
NATURE SUSTAINABILITY
(2023)
Review
Construction & Building Technology
Muhamad Zahin Mohd Ashhar, Lim Chin Haw
Summary: This paper discusses the potential of using reflective foil as a roof thermal insulation system to reduce cooling energy in buildings, especially in tropical regions. It also covers various thermal performance test methods and factors affecting thermal performance.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Thermodynamics
Andrey Kuzmin, Valeriya Pinchuk, David Alberto Garcia Arango, Orlando Carmelo Castellanos Polo, Sofiia Pinchuk
Summary: This study analyzes the design of a molding machine for producing single-use plates from natural leaves, and proposes a simple solution that significantly improves energy efficiency and environmental friendliness of the equipment.
THERMAL SCIENCE AND ENGINEERING PROGRESS
(2023)
Article
Construction & Building Technology
Jaanus Hallik, Paul Kloseiko, Reimo Piir, Targo Kalamees
Summary: This study uses numerical methods to evaluate the thermal transmittance of building envelope structures, finding that different cavity geometries and locations can have an impact on thermal conductivity, especially at large temperature differences. Implementing measures such as dual-layer insulation around penetrating air cavities can reduce additional heat loss.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Green & Sustainable Science & Technology
Abdulhamid Al-Abduljabbar, Majid Al-Mogbel, Syed Noman Danish, Abdelrahman El-Leathy
Summary: A common practice in Saudi Arabia is to only insulate outer walls and windows of buildings, neglecting other components such as the roof and doors. This study aims to test the effectiveness of this practice by quantifying the contribution of each building component to the overall air-conditioning load. The findings highlight the importance of the roof and suggest an optimized selection of insulation materials for cost-effective and energy-saving insulation.
Article
Energy & Fuels
Christina A. Konstantinidou, Werner Lang, Agis M. Papadopoulos, Mattheos Santamouris
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2019)
Review
Green & Sustainable Science & Technology
Charalampos Tziogas, Patroklos Georgiadis, Agis Papadopoulos
JOURNAL OF CLEANER PRODUCTION
(2019)
Article
Construction & Building Technology
Sofia-Natalia Boemi, Agis M. Papadopoulos
ENERGY AND BUILDINGS
(2019)
Review
Green & Sustainable Science & Technology
Sandro Nizetic, Nedjib Djilali, Agis Papadopoulos, Joel J. P. C. Rodrigues
JOURNAL OF CLEANER PRODUCTION
(2019)
Article
Thermodynamics
Konstantinos T. Papakostas, Stavros Pavlou, Agis M. Papadopoulos
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2020)
Article
Green & Sustainable Science & Technology
Maria M. Symeonidou, Chrysanthi Zioga, Agis M. Papadopoulos
Summary: The EU's current climate and energy policies focus on reducing carbon dioxide emissions and promoting clean energy, primarily through the use of renewables. Effective energy management within a community, treated as a micro-grid, is crucial, along with the storage of electricity for optimal integration of renewables. Technological advancements and decreasing production costs of batteries make them a key factor in effectively managing energy at a residential level.
JOURNAL OF CLEANER PRODUCTION
(2021)
Review
Energy & Fuels
Maria Symeonidou, Agis M. Papadopoulos
Summary: The European Union is focused on reducing carbon emissions and promoting sustainable energy through its energy and climate policies. A key aspect of achieving these goals is the efficient management of locally produced energy through microgrids, and energy storage is seen as a crucial tool in this regard. This paper aims to analyze the current state of energy storage systems, particularly batteries, and discuss upcoming technological advancements in this field.
Article
Energy & Fuels
Effrosyni Giama, Elli Kyriaki, Athanasios Papaevaggelou, Agis Papadopoulos
Summary: The aim of this paper is to assess the feasibility and environmental impact of biomass and solar thermal systems for heating applications in residential buildings, and compare them to conventional fossil fuel heating systems. Different scenarios were evaluated based on a Life Cycle Energy Analysis approach to determine the contribution of renewable energy technologies to the total final energy consumption of zero energy buildings. The study revealed that the combination of biomass and solar thermal systems is the optimal energy solution, with lower overall environmental impact.
Article
Chemistry, Multidisciplinary
Georgios Chantzis, Effrosyni Giama, Agis M. Papadopoulos
Summary: This paper presents a simulation-based assessment of thermal flexibility in a typical office building in Greece, and explores the potential of demand side flexibility in achieving renewable energy production and carbon emission reduction targets. The research evaluates the use of variable speed heat pumps and hydronic terminal units, focusing on the energy flexibility offered by thermal energy stored in the building. The study investigates the demand response potential under hourly CO2eq intensity and energy prices, and analyzes the impact of demand response on energy consumption, operational costs, emissions, and thermal comfort.
APPLIED SCIENCES-BASEL
(2023)
Article
Construction & Building Technology
Lina Morkunaite, Darius Pupeikis, Andrius Jurelionis, Paris A. Fokaides, Agis Papadopoulos
Summary: This study assesses the energy savings resulting from multiple upgrades to the control levels in the heating system components of buildings, and examines the impact of various automation and control options on energy savings.
Article
Environmental Sciences
Anh Tuan Hoang, Sandro Nizetic, Kim Hoong Ng, Agis M. Papadopoulos, Anh Tuan Le, Sunil Kumar, H. Hadiyanto, Van Viet Pham
Summary: Microbial fuel cells (MFCs) are praised for their potential to solve energy crises and environmental pollution, but they currently face technological bottlenecks and low economic competitiveness. Through economic analysis and strategic planning, there is a potential to improve the practicality of MFCs and move towards industrialization, providing cleaner energy and environment for the entire human race.
Article
Energy & Fuels
Kyriakos S. Xystouris, Paris A. Fokaides, Panagiota Antoniadou, Agis M. Papadopoulos
INTERNATIONAL JOURNAL OF SUSTAINABLE ENERGY
(2020)
Proceedings Paper
Computer Science, Interdisciplinary Applications
Maria Symeonidou, Spyridoula Trakaki, Agis M. Papadopoulos
2019 4TH INTERNATIONAL CONFERENCE ON SMART AND SUSTAINABLE TECHNOLOGIES (SPLITECH)
(2019)
Proceedings Paper
Computer Science, Interdisciplinary Applications
Effrosyni Giama, Michail Mamaloukakis, Agis M. Papadopoulos
2019 4TH INTERNATIONAL CONFERENCE ON SMART AND SUSTAINABLE TECHNOLOGIES (SPLITECH)
(2019)
Article
Energy & Fuels
Sofia-Natalia Boemi, Agis M. Papadopoulos
INTERNATIONAL JOURNAL OF SUSTAINABLE ENERGY
(2019)
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)