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This dissertation, "Informing Energy-efficient Envelope Design Decisions for Residential Buildings in Hong Kong" by Xiaoxia, Sang, 桑曉夏, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Space conditioning and lighting together account for about a third of end-use energy consumption in residential buildings in Hong Kong. Previous research shows that such energy consumption can be significantly reduced by employing energy-efficient building envelope design. However, despite that fact, the envelopes of many residential buildings in Hong Kong are designed in ways that impair building energy performance. For example, most residential buildings in Hong Kong have single-glazed windows and solar-absorbing roofs, many leak airs, and some have no external wall insulation or exterior shading. There are many energy-efficient envelope (EEE) design measures that improve overall building energy efficiency, but their selection has been widely recognized as a difficult task for design decision-makers, as it requires good engineering judgment and substantial building performance data. Apart from the energy considerations in EEE design, the reasons why professionals do or do not incorporate EEE design measures voluntarily into building design have not been thoroughly investigated. The majority of previous studies have focused on evaluating design alternatives after the design decision is made, but largely overlook the issue of informing the design before the decision-making process. The aim of this research is to inform design decision-making for selecting appropriate EEE measures for residential buildings in Hong Kong. The research included three major interrelated steps. Firstly, a comprehensive literature review was conducted of the energy-related parameters and non-energy-related factors critical to the selection of EEE design measures in the Hong Kong context. Secondly, the influential design parameters identified from the literature review were used for detailed parametric simulation and analysis. Their effects on building energy performance were evaluated, and their relationships with selected outputs were analysed. Thirdly, a survey was set up to investigate the perceptions of building professionals about EEE design decision-making criteria and factors affecting the adoption of EEE designs. Taken together, these three study components contribute to the development of a decision support framework that buttresses the effective selection of appropriate EEE design measures for low-energy residential buildings in Hong Kong. The framework shortlists the critical parameters in EEE design, highlights their effects on building energy performance, points out the drivers and barriers to adoption, and suggests strategies to expedite the adoption of those measures. The findings should support the effective comparison and selection of EEE design measures for delivering low-energy residential buildings in Hong Kong. They should also help to achieve the targets of relevant industry and government programmes in Hong Kong for expediting the adoption of EEE design measures. DOI: 10.5353/th_b5317066 Subjects: Dwellings - China - Hong Kong - Design and construction
This book presents selected papers from the 6th International Conference on Advances in Energy Research (ICAER 2017), which cover topics ranging from energy optimization, generation, storage and distribution, and emerging technologies, to energy management, policy, and economics. The book is inter-disciplinary in scope and addresses a host of different areas relevant to energy research, making it of interest to scientists, policymakers, students, economists, rural activists, and social scientists alike.
Welcome to "Mastering the Building Envelope: A Comprehensive Guide to Designing for Energy Efficiency and Thermal Comfort." This book is a culmination of years of experience, research, and innovation in the field of sustainable architecture and construction. The building envelope, often overlooked or underestimated, plays a critical role in the performance of a structure. It serves as the interface between the interior and exterior environments, influencing energy consumption, occupant comfort, and overall building sustainability. As our society increasingly prioritizes environmental stewardship and energy conservation, the importance of optimizing the building envelope has never been greater. In this book, we aim to provide architects, engineers, builders, and students with a comprehensive understanding of the principles and practices involved in designing and constructing high-performance building envelopes. From selecting appropriate materials to implementing advanced energy-efficient technologies, each chapter delves into essential concepts and practical strategies to achieve optimal results. Throughout these pages, you will find: Detailed explanations of building envelope components, including walls, roofs, windows, and doors, with a focus on their role in energy efficiency and thermal comfort. Insights into passive and active design strategies aimed at reducing energy consumption and enhancing occupant well-being. Guidance on assessing performance and compliance with energy codes and standards, as well as tools and resources for evaluation. Case studies highlighting successful projects from around the world, showcasing innovative approaches and lessons learned. Discussions on emerging trends and future directions in building envelope design, including net-zero energy buildings and climate resilience. Our goal is not only to inform but also to inspire. By embracing the principles outlined in this book, you have the opportunity to make a meaningful impact on the built environment, creating spaces that are not only environmentally responsible but also comfortable, healthy, and enjoyable for occupants. We hope that "Mastering the Building Envelope" serves as a valuable resource in your journey toward sustainable design and construction. Together, let us strive to create buildings that not only stand the test of time but also contribute to a more sustainable and resilient future. Thank you for joining us on this journey.
This book results from a Special Issue published in Energies, entitled “Building Thermal Envelope". Its intent is to identify emerging research areas within the field of building thermal envelope solutions and contribute to the increased use of more energy-efficient solutions in new and refurbished buildings. Its contents are organized in the following sections: Building envelope materials and systems envisaging indoor comfort and energy efficiency; Building thermal and energy modelling and simulation; Lab test procedures and methods of field measurement to assess the performance of materials and building solutions; Smart materials and renewable energy in building envelope; Adaptive and intelligent building envelope; and Integrated building envelope technologies for high performance buildings and cities.
Although there have been numerous innovative developments for building systems and technologies in response to the current declining environmental conditions, there is still a gap within practice and research between conducting and evaluating data from building performance studies and design priorities. Currently, there are no standardized methods/systems to incorporate such quantitative data into the architectural design process. The main thesis enquiry is to investigate a methodology through which a parametric analysis of energy performance and occupant thermal and visual comfort, can become a driver for design decisions of high-performance building envelopes for office buildings. This study is approached as an interface analyzing specific variables according to thermal, lighting, and airflow performance. This interface also includes a comparative analysis component that attempts to create an evaluation criteria and a graphic language to interpret performance data to architects and designers. This study of the building envelope begins to frame a methodology in which specific aspects of performance data can be calculated, understood, and utilized to directly inform design decisions. It also suggests ways in which performance data can be compared and evaluated against various standards for occupant comfort, as an integral part of the design process. Ultimately, this research seeks to explore and visualize architecture not as static objects, but as dynamic exchanges of energy flow that respond to its climatic context and occupant needs.
The design and construction of the appropriate building envelope is one of the most effective ways for improving a building's thermal performance. Thermal Inertia in Energy Efficient Building Envelopes provides the optimal solutions, tools and methods for designing the energy efficient envelopes that will reduce energy consumption and achieve thermal comfort and low environmental impact. Thermal Inertia in Energy Efficient Building Envelopes provides experimental data, technical solutions and methods for quantifying energy consumption and comfort levels, also considering dynamic strategies such as thermal inertia and natural ventilation. Several type of envelopes and their optimal solutions are covered, including retrofit of existing envelopes, new solutions, passive systems such as ventilated facades and solar walls. The discussion also considers various climates (mild or extreme) and seasons, building typology, mode of use of the internal environment, heating profiles and cross-ventilation Experimental investigations on real case studies, to explore in detail the behaviour of different envelopes Laboratory tests on existing insulation to quantify the actual performances Analytical simulations in dynamic conditions to extend the boundary conditions to other climates and usage profiles and to consider alternative insulation strategies Evaluation of solutions sustainability through the quantification of environmental and economic impacts with LCA analysis; including global cost comparison between the different scenarios Integrated evaluations between various aspects such as comfort, energy saving, and sustainability
This dissertation, "The Effects of Building Envelope and Orientation on Energy Conservation in Commercial Buildings in Hong Kong" by Wai-chung, Christopher, Chan, 陳慧聰, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. DOI: 10.5353/th_b3125308 Subjects: Commercial buildings - China - Hong Kong - Energy conservation Commercial buildings - China - Hong Kong - Energy consumption Commercial buildings - China - Hong Kong - Design and construction
This book gathers the latest advances, innovations, and applications in the field of information technology in civil and building engineering, presented at the 19th International Conference on Computing in Civil and Building Engineering (ICCCBE), held in Cape Town, South Africa on October 26-28, 2022. It covers highly diverse topics such as BIM, construction information modeling, knowledge management, GIS, GPS, laser scanning, sensors, monitoring, VR/AR, computer-aided construction, product and process modeling, big data and IoT, cooperative design, mobile computing, simulation, structural health monitoring, computer-aided structural control and analysis, ICT in geotechnical engineering, computational mechanics, asset management, maintenance, urban planning, facility management, and smart cities. Written by leading researchers and engineers, and selected by means of a rigorous international peer-review process, the contributions highlight numerous exciting ideas that will spur novel research directions and foster multidisciplinary collaborations.