Optimization Of The Characterization Of The Thermal Properties Of The Building Envelope
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Optimization Of The Characterization Of The Thermal Properties Of The Building Envelope
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Author : David Bienvenido-Huertas
language : en
Publisher: Springer Nature
Release Date : 2020-11-20
Optimization Of The Characterization Of The Thermal Properties Of The Building Envelope written by David Bienvenido-Huertas and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-11-20 with Architecture categories.
This book is about the optimization of the characterization of the thermal properties of building envelopes, through experimental tests and the use of artificial intelligence. It analyses periodic and stationary thermal properties using measurement approaches based on the heat flow meter method and the thermometric method. These measurements are then analysed using advanced artificial intelligence algorithms. The book is structured in four parts, beginning with a discussion of the importance of thermal properties in the energy performance of buildings. Secondly, theoretical and experimental methods for characterizing thermal properties are analysed. Then, the methodology is developed, and the characteristics and properties of the algorithms used are explored. Finally, the results obtained with the algorithms are analysed and the most appropriate approaches are determined. This book is of interest to researchers, civil and industrial engineers, energy auditors and architects, by providing a resource which improves energy audit tasks in existing buildings.
Optimization Of The Characterization Of The Thermal Properties Of The Building Envelope
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Author : David Bienvenido-Huertas
language : en
Publisher:
Release Date : 2021
Optimization Of The Characterization Of The Thermal Properties Of The Building Envelope written by David Bienvenido-Huertas and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021 with Building categories.
This book is about the optimization of the characterization of the thermal properties of building envelopes, through experimental tests and the use of artificial intelligence. It analyses periodic and stationary thermal properties using measurement approaches based on the heat flow meter method and the thermometric method. These measurements are then analysed using advanced artificial intelligence algorithms. The book is structured in four parts, beginning with a discussion of the importance of thermal properties in the energy performance of buildings. Secondly, theoretical and experimental methods for characterizing thermal properties are analysed. Then, the methodology is developed, and the characteristics and properties of the algorithms used are explored. Finally, the results obtained with the algorithms are analysed and the most appropriate approaches are determined. This book is of interest to researchers, civil and industrial engineers, energy auditors and architects, by providing a resource which improves energy audit tasks in existing buildings.
Thermal Inertia In Energy Efficient Building Envelopes
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Author : Francesca Stazi
language : en
Publisher: Butterworth-Heinemann
Release Date : 2017-08-29
Thermal Inertia In Energy Efficient Building Envelopes written by Francesca Stazi and has been published by Butterworth-Heinemann this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-08-29 with Technology & Engineering categories.
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
Thermal Mass Performance In Residential Construction
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Author : Alison Catherine Ledwith
language : en
Publisher:
Release Date : 2012
Thermal Mass Performance In Residential Construction written by Alison Catherine Ledwith and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.
Given the pervasiveness of energy efficiency concerns in the built environment, this research aims to answer key questions regarding the performance of thermal mass construction. The work presents the Cube Model, a simplified model of the single-family home. The model combines simplified geometry and equivalent envelope parameters with accurate climate data and internal loading assumptions. The model first addresses the notion as to whether building simplification is a valid means of analysis through a calibration and validation study. Then, the model is used to address three research areas on passive thermal mass: (1) the quantification of thermal mass performance with respect to material thermal properties; (2) the optimization of thermal mass performance for given material parameters; and (3) the sensitivity of thermal mass performance to infiltration and geometry effects. The experiments for wall and slab constructions, to address the first research area, demonstrate that the energy savings from thermal mass are both climate and season dependent. Results provide the magnitude of energy savings in fifty climates across the United States. Optimization experiments on the material thickness and conductivity, to address the second research area, show that constructions do not reach peak thermal mass performance at the same thermal properties in all climates. Sensitivity analyses, to address the third research area, indicate that passive thermal mass and tight construction practices can be mutually optimized without a trade-off of energy performance. Geometry effects demonstrate that modifications in building design can either benefit or hinder the performance of passive thermal mass. The combination of the results suggests that optimum design for thermal mass performance and the resulting energy consumption are climate-dependent and sensitive to many factors aside from material thermal properties.
Whole Year Optimization Of Building Thermal Properties
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Author : Homa Naeimi
language : en
Publisher:
Release Date : 2014
Whole Year Optimization Of Building Thermal Properties written by Homa Naeimi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.
Along with improvement in buildings structure, developments in thermal design allow decreasing the energy demand of heating, cooling, and air conditioning of buildings. This thesis distinguishes and optimizes design elements that are essential in minimizing building heating/cooling loads. Optimum designs vary significantly for different areas due to different meteorological conditions between locations and seasonal changes at the same location. Considering the typical meteorological conditions at two sites, a genetic algorithm optimizer is coupled with annual simulations of building energy demand to minimize building energy use. The results present significant deviations between annual optimum design and ideal design for hot or cold season. The findings emphasis the importance of year-long simulations in optimal thermal design of buildings.
Evaluation Of Building Envelope Performance Including Uncertainty And Degradation Within A Multi Objective Optimization Framework
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Author : Daniel Haeyoung Chung
language : en
Publisher:
Release Date : 2019
Evaluation Of Building Envelope Performance Including Uncertainty And Degradation Within A Multi Objective Optimization Framework written by Daniel Haeyoung Chung and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with Buildings categories.
Predicting building envelope behavior over time can be difficult due to the uncertainty and complexity of the environment, materials and processes that influence heat, air, and moisture (H.A.M.) transport through the assembly. While the variability in outdoor weather's impact on H.A.M. analysis for envelopes has been studied over one-year prediction periods, long-term multi-year predictive simulations have not been well studied. Similarly, degradation and material variability are known to impact long-term envelope H.A.M. behavior, yet there has been limited documentation on predictive studies that integrate these areas into a useful framework to inform a design process. Thus, the primary objective of this dissertation is to create a novel method of determining probabilistic distributions of envelope moisture behavior outcomes that also includes variation from degradation, so that the results can augment decision frameworks for building envelope design. To fulfill the objective the research work explored four tasks. (1) The investigation of available probabilistic input distributions for building envelope simulations. Here inputs include weather conditions and material properties. (2) The stochastic investigation of the impact of variable multi-year weather on H.A.M. analysis outcomes. (3) The integration of time-dependent loadings and degradation modeling coupled with H.A.M. analysis (i.e. multi-year weather, indoor climate variation and insulation aging). (4) The creation of envelope metamodels (based on the probabilistic analysis using H.A.M. and degradation models) to expedite optimization studies. These are derived from the Monte Carlo studies via regression analysis. The investigation of available data resulted in the determination that while stochastic weather data is available, important aspects of rainfall and longwave radiation (from the sky) may be missing for many locations. Datasets regarding stochastic material properties are limited and require compilation from multiple studies. These deficiencies should be addressed by the industry to improve predictive capabilities and enhance the understanding of uncertainty in envelope analysis. The stochastic investigation of the analysis duration for building envelopes determined that variable weather for 10-year simulation periods had significant impact on the H.A.M. behavior. In comparison to frequently used one-year simulations, the 10-year results demonstrated much greater risks of undesirable moisture related outcomes (such as mold growth and corrosion). Currently ASHRAE standard 160 recommends that H.A.M. simulations be performed over either a reference year or a 10-year period. While ASHRAE provides reference year data, no guidance is given on selecting a 10-year weather period. Given the significantly higher risks demonstrated in this dissertation when using 10-year periods, this should be addressed in future research to better characterize long-term envelope behavior. The results from integrating time-dependent loadings and degradation coupling with H.A.M. analysis showed mixed results. Of the five coupled models studied, the two with the greatest influence on the H.A.M. behavior were longwave radiation exchange and wood decay. Wood decay while statistically infrequent had showed significantly accelerated mass loss when strongly coupled in the simulation model. Longwave radiation exchange greatly impacted moisture transport. Out of all the models studied, those that included longwave radiation exchange head the highest levels of moisture content. Further research including validation studies are needed to improve the use of longwave radiation exchange in envelope analysis. The results from the regression analyses and the optimization studies showed that the general framework for creating the metamodels is fairly robust. Metamodels were created with reasonable R-squared and error values from Monte Carlo trials to predict moisture related outcomes (i.e. moisture content, mold growth, and corrosion). These metamodels were demonstrated in a multi-objective optimization process that revealed in the assemblies studied that there is a general inverse relationship between moisture optimization and thermal transmittance. As minimizing moisture content and U-values are common goals for envelope design, discovering that the two objectives are inversely related through the optimization studies was significant. This outcome demonstrates how the methodology of the dissertation can be used as a framework to evaluate envelope performance to include uncertainty and degradation for multi-objective optimization and should help inform the envelope design process.
New Technologies In Building And Construction
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Author : David Bienvenido-Huertas
language : en
Publisher: Springer Nature
Release Date : 2022-05-15
New Technologies In Building And Construction written by David Bienvenido-Huertas and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-05-15 with Technology & Engineering categories.
This book presents contributions on new technologies in building and construction. Buildings are complex elements that impact environment significantly. The sustainability of this sector requires a holistic and multidisciplinary approach that allows adequate strategies to be established to reduce its environmental impact. This heterogeneity is represented in these chapters, which have been developed by researchers from different countries. The book is divided into three sections: (i) analysis, (ii) design and modeling, and (iii) solutions. The book chapters together represent an advance in current knowledge about new technologies in building and construction, crucial for researchers, engineers, architects, policy makers, and stakeholders.
Latent Heat Based Thermal Energy Storage Systems
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Author : Amritanshu Shukla
language : en
Publisher: CRC Press
Release Date : 2020-09-27
Latent Heat Based Thermal Energy Storage Systems written by Amritanshu Shukla and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-09-27 with Science categories.
In light of increasing human-induced global climate change, there is a greater need for clean energy resources and zero carbon projects. This new volume offers up-to-date coverage of the fundamentals as well as recent advancements in energy efficient thermal energy storage materials, their characterization, and technological applications. Thermal energy storage (TES) systems offer very high-energy savings for many of our day-to-day applications and could be a strong component for enhancing the usage of renewable/clean energy-based devices. Because of its beneficial environmental impact, this technology has received wide attention in the recent past, and dedicated research efforts have led to the development of novel materials, as well to innovative applications in very many fields, ranging from buildings to textile, healthcare to agriculture, space to automobiles. This book offers a valuable and informed systematic treatment of latent heat-based thermal energy storage systems, covering current energy research and important developmental work.
Cost Effective Energy Efficient Building Retrofitting
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Author : F. Pacheco-Torgal
language : en
Publisher: Woodhead Publishing
Release Date : 2017-01-03
Cost Effective Energy Efficient Building Retrofitting written by F. Pacheco-Torgal and has been published by Woodhead Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-01-03 with Technology & Engineering categories.
Cost-Effective Energy Efficient Building Retrofitting:Materials, Technologies, Optimization and Case Studies provides essential knowledge for civil engineers, architects, and other professionals working in the field of cost-effective energy efficient building retrofitting. The building sector is responsible for high energy consumption and its global demand is expected to grow as each day there are approximately 200,000 new inhabitants on planet Earth. The majority of electric energy will continue to be generated from the combustion of fossil fuels releasing not only carbon dioxide, but also methane and nitrous oxide. Energy efficiency measures are therefore crucial to reduce greenhouse gas emissions of the building sector. Energy efficient building retrofitting needs to not only be technically feasible, but also economically viable. New building materials and advanced technologies already exist, but the knowledge to integrate all active components is still scarce and far from being widespread among building industry stakeholders. Emphasizes cost-effective methods for the refurbishment of existing buildings, presenting state-of-the-art technologies Includes detailed case studies that explain various methods and Net Zero Energy Explains optimal analysis and prioritization of cost effective strategies
Nbs Special Publication
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Author :
language : en
Publisher:
Release Date : 1968
Nbs Special Publication written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with Building categories.