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Author : Eugene Van Heerden
Publisher :
ISBN 13 :
Total Pages : 305 pages
Book Rating : 4.:/5 (889 download)
Download or read book Integrated Simulation of Building Thermal Performance, HVAC System and Control written by Eugene Van Heerden and published by . This book was released on 1997 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jan L.M. Hensen
Publisher : Routledge
ISBN 13 : 0429688539
Total Pages : 958 pages
Book Rating : 4.4/5 (296 download)
Download or read book Building Performance Simulation for Design and Operation written by Jan L.M. Hensen and published by Routledge. This book was released on 2019-04-24 with total page 958 pages. Available in PDF, EPUB and Kindle. Book excerpt: When used appropriately, building performance simulation has the potential to reduce the environmental impact of the built environment, to improve indoor quality and productivity, as well as to facilitate future innovation and technological progress in construction. Since publication of the first edition of Building Performance Simulation for Design and Operation, the discussion has shifted from a focus on software features to a new agenda, which centres on the effectiveness of building performance simulation in building life cycle processes. This new edition provides a unique and comprehensive overview of building performance simulation for the complete building life cycle from conception to demolition, and from a single building to district level. It contains new chapters on building information modelling, occupant behaviour modelling, urban physics modelling, urban building energy modelling and renewable energy systems modelling. This new edition keeps the same chapter structure throughout including learning objectives, chapter summaries and assignments. Moreover, the book: • Provides unique insights into the techniques of building performance modelling and simulation and their application to performance-based design and operation of buildings and the systems which service them. • Provides readers with the essential concepts of computational support of performance-based design and operation. • Provides examples of how to use building simulation techniques for practical design, management and operation, their limitations and future direction. It is primarily intended for building and systems designers and operators, and postgraduate architectural, environmental or mechanical engineering students.
Author : John W. Mitchell
Publisher : John Wiley & Sons
ISBN 13 : 0470624574
Total Pages : 629 pages
Book Rating : 4.4/5 (76 download)
Download or read book Principles of Heating, Ventilation, and Air Conditioning in Buildings written by John W. Mitchell and published by John Wiley & Sons. This book was released on 2012-03-06 with total page 629 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heating Ventilation and Air Conditioning by J. W. Mitchell and J. E. Braun provides foundational knowledge for the behavior and analysis of HVAC systems and related devices. The emphasis of this text is on the application of engineering principles that features tight integration of physical descriptions with a software program that allows performance to be directly calculated, with results that provide insight into actual behavior. Furthermore, the text offers more examples, end-of-chapter problems, and design projects that represent situations an engineer might face in practice and are selected to illustrate the complex and integrated nature of an HVAC system or piece of equipment.
Author : Vishal Garg
Publisher : CRC Press
ISBN 13 : 1000095762
Total Pages : 741 pages
Book Rating : 4.0/5 ( download)
Download or read book Building Energy Simulation written by Vishal Garg and published by CRC Press. This book was released on 2020-08-17 with total page 741 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second edition of Building Energy Simulation includes studies of various components and systems of buildings and their effect on energy consumption, with the help of DesignBuilderTM, a front-end for the EnergyPlus simulation engine, supported by examples and exercises. The book employs a "learning by doing" methodology. It explains simulation-input parameters and how-to-do analysis of the simulation output, in the process explaining building physics and energy simulation. Divided into three sections, it covers the fundamentals of energy simulation followed by advanced topics in energy simulation and simulation for compliance with building codes and detailed case studies for comprehensive building energy simulation. Features: Focuses on learning building energy simulation while being interactive through examples and exercises. Explains the building physics and the science behind the energy performance of buildings. Encourages an integrated design approach by explaining the interactions between various building systems and their effect on energy performance of building. Discusses a how-to model for building energy code compliance including three projects to practice whole building simulation. Provides hands-on training of building energy simulation tools: DesignBuilderTM and EnergyPlus. Includes practical projects problems, appendices and CAD files in the e-resources section. Building Energy Simulation is intended for students and researchers in building energy courses, energy simulation professionals, and architects.
Author : D. C. Arndt
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (956 download)
Download or read book Integrated Dynamic Simulation of Large Thermal Systems written by D. C. Arndt and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Studies concluded that more that 10% of all energy consumed in the world is expended by building air-conditioning systems. Energy efficiency in building and HVAC (Heating, Ventilating and Air-conditioning) design is therefore exceptionally important. A cost -effective way to improve the energy efficiency of a HV AC system, without compromising indoor comfort, is by implementing better control. System energy cost savings of up to 50% can be realised by optimising the system operating control strategies with direct payback periods of less than a year. However, when changing the operating strategy of a system it is often difficult to predict the resulting changes in system energy consumption and indoor comfort. To achieve these predictions, a dynamic simulation tool, which can efficiently and accurately simulate the building with the HV AC and control system in an integrated fashion, is required. Extensions to the integrated tool QUICKcontrol is therefore proposed to suite the needs of the energy service contractor. QUICKcontrol still has many shortcomings in the availability of component models for certain equipment commonly used in building systems today. New dynamic component models were therefore derived in this study. The accuracy and applicability of integrated building and natural ventilation modelling is illustrated in animal housing facilities. The predicted results obtained during this study were satisfactory to use these models with confidence in this type of building applications. The applicability of building, HV AC system and control simulations was illustrated in conference facilities. The results obtained show the value of integrated building and system simulation in the evaluation of energy cost saving inventions in commercial buildings. The mining and industrial sectors in South Africa consume about 40% of ESKOM's total electrical energy production. Mines alone use nearly 20% of the electricity provided by ESKOM. Ventilation and cooling (VC) systems are responsible for approximately 25% or R750 million of this energy. It will therefore be beneficial if the mines can be more energy clever in order to reduce their VC operating costs. The use of an extended integrated building and system simulation tool was therefore realised to investigate the potential for energy cost savings in mine VC applications. To extend QUICKcontrol for the simulation of other large thermal systems found in mining and industrial applications, new component models and simulations procedures were developed. Two case studies were performed with the extended tool to illustrate its applicability in thermal systems other than building systems. The potential for Demand Side Management (DSM) on a surface cooling plant and an underground clear water-pumping system was investigated. Satisfactory results were obtained during the two investigations to utilise this extended tool with confidence in practice. With more extensions to the tool it should be possible to investigate the potential for energy cost saving on any other thermal industrial applications.
Author : John T. Wen
Publisher : Springer
ISBN 13 : 3319684620
Total Pages : 321 pages
Book Rating : 4.3/5 (196 download)
Download or read book Intelligent Building Control Systems written by John T. Wen and published by Springer. This book was released on 2017-12-04 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: Readers of this book will be shown how, with the adoption of ubiquituous sensing, extensive data-gathering and forecasting, and building-embedded advanced actuation, intelligent building systems with the ability to respond to occupant preferences in a safe and energy-efficient manner are becoming a reality. The articles collected present a holistic perspective on the state of the art and current research directions in building automation, advanced sensing and control, including: model-based and model-free control design for temperature control; smart lighting systems; smart sensors and actuators (such as smart thermostats, lighting fixtures and HVAC equipment with embedded intelligence); and energy management, including consideration of grid connectivity and distributed intelligence. These articles are both educational for practitioners and graduate students interested in design and implementation, and foundational for researchers interested in understanding the state of the art and the challenges that must be overcome in realizing the potential benefits of smart building systems. This edited volume also includes case studies from implementation of these algorithms/sensing strategies in to-scale building systems. These demonstrate the benefits and pitfalls of using smart sensing and control for enhanced occupant comfort and energy efficiency.
Author : Andreas Athienitis
Publisher : John Wiley & Sons
ISBN 13 : 3433030839
Total Pages : 396 pages
Book Rating : 4.4/5 (33 download)
Download or read book Modeling, Design, and Optimization of Net-Zero Energy Buildings written by Andreas Athienitis and published by John Wiley & Sons. This book was released on 2015-03-30 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bei Neubauten wird von den meisten Industrieländern langfristig das Ziel von Netto-Nullenergiegebäuden verfolgt. Dieses Buch hilft Planern bei der optimalen Nutzung von Simulationstools für die Planung von Netto-Nullenergiegebäuden. In dem Buch werden sowohl moderne Modellierungstechniken als auch eingehende Einzelfallstudien vorgestellt. Das Buch wurde von international renommierten Experten erarbeitet und ist im Rahmen folgender Forschungsvorhaben der Internationalen Energieagentur entstanden: Solar Heating and Cooling Programme (SHC) und Energy in Buildings and Communities Programme (EBC).
Author :
Publisher :
ISBN 13 :
Total Pages : 138 pages
Book Rating : 4.:/5 (246 download)
Download or read book Trends and Opportunities in the Simulation of Building Thermal Performance and HVAC Systems written by and published by . This book was released on 1993 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ali Malkawi
Publisher : Routledge
ISBN 13 : 1134357532
Total Pages : 267 pages
Book Rating : 4.1/5 (343 download)
Download or read book Advanced Building Simulation written by Ali Malkawi and published by Routledge. This book was released on 2004-07-29 with total page 267 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces recent advances in building simulation and outlines its historic development. Two important topics are described: uncertainty in simulation and coupled simulations, which are both closely linked to attempts to improve control and accuracy. This is followed by coverage of wind simulations and predictions, and then by an introduction to current systems and phenomenological modelling. Written by leading experts in the field both in the US and Europe, Advanced Building Simulation is an excellent graduate-level student textbook as well as a practical guide for architects, engineers and other construction professionals.
Author : Michael Wayne Ellis
Publisher :
ISBN 13 :
Total Pages : 150 pages
Book Rating : 4.:/5 (889 download)
Download or read book Practical Evaluation and Integrated Simulation of Building HVAC System Performance written by Michael Wayne Ellis and published by . This book was released on 1996 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Almahdi T M. Abdo-Allah
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (132 download)
Download or read book Dynamic Modeling and Fuzzy Logic Control of a Large Building HVAC System written by Almahdi T M. Abdo-Allah and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Energy and cost-efficient management of a building's thermal properties requires heating, ventilation and air conditioning (HVAC) systems controllers to be working at optimal settings. However, many HVAC systems employ nonlinear time variances to deal with issues that affect the system's optimal operation. The present work considers an HVAC system at Memorial University's S. J. Carew Building which has been mathematically modeled using a state space multi-input and multi-output system (MIMO) approach for analyses and control system design. An IDA-ICE (Indoor Climate and Energy) simulation program has been applied for modeling the building, note that the four-story Carew Building includes an air-handling unit (AHU) on every floor. Compared with real data for one year's (2016) power consumption, the simulated annual power consumption for the building shows good agreement. Based on that data, two scenarios are applied for building the system models. Scenario 1 considers the HVAC system as a single unit with energy consumption (kWh) as inputs and zonal temperature and CO2 concentrations as outputs. By employing the MATLAB system identification toolbox, a MIMO-based system forms the basis for a state space model. In the model for Scenario 1, there are eight main AHU inputs (hot water power usage and power usage) and eight main outputs (return airflow temperature and CO2 levels). The state feedback controller obtains good results for both responses rise time and stability. In Scenario 2, there are four AHUs in total. Each of this scenario's AHUs features three main inputs (hot water, internal-to-internal air flow, and external-to-internal air flow) and three main outputs (static air pressure, CO2 levels, and temperature). In the first AHU (AHU1), we apply state-of-the-art fuzzy logic controllers (FLCs) to control fan speeds, CO2 concentrations, and temperature in the building in accordance with the flow rates for air and hot water. This strategy represents a novel approach for adapting FLCs by modifying fuzzy rule using the Simulink. The modified system shows improved levels of thermal comfort. The final part of the work presents the design for a supervisor fuzzy logic controller (SFLC) that can be applied to the entire S. J. Carew Building HVAC control. This SFLC features 24 inputs and 12 outputs and employs a state-space model that considers each AHU as an individual system. The SFLC detailed design and system simulation results are presented in this thesis.
Author : Charles Nehme
Publisher : Charles Nehme
ISBN 13 :
Total Pages : 33 pages
Book Rating : 4./5 ( download)
Download or read book HVAC Controls written by Charles Nehme and published by Charles Nehme. This book was released on with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: Welcome to the world of HVAC controls! This book aims to provide you with a comprehensive understanding of HVAC controls, their importance, and their impact on heating, ventilation, and air conditioning systems in buildings. Heating, ventilation, and air conditioning play a vital role in maintaining indoor comfort, energy efficiency, and occupant well-being. Within these systems, HVAC controls act as the brains, regulating and optimizing the operation of various components to achieve the desired indoor conditions. Without proper control strategies and technologies, HVAC systems would be inefficient, unreliable, and unable to adapt to changing conditions. The field of HVAC controls is constantly evolving, driven by advancements in technology, the need for energy efficiency, and the demand for intelligent and connected buildings. From basic control strategies to advanced technologies like IoT, machine learning, and cloud computing, HVAC controls have come a long way in enhancing system performance and occupant comfort. Throughout this book, we will delve into the fundamental principles of HVAC controls, exploring the different components, sensors, actuators, and control strategies that make up these systems. We will discuss the integration of HVAC controls into building automation systems, the role of controls in energy efficiency and indoor air quality, and the impact of advanced technologies on the future of HVAC controls. We will also address the challenges and considerations in HVAC controls, including system complexity, sensor accuracy, energy efficiency versus occupant comfort, maintenance and troubleshooting, cybersecurity, and evolving industry standards. By understanding and addressing these challenges, we can effectively implement and maintain HVAC controls to ensure optimal system performance and occupant satisfaction. Whether you are a student, a professional in the HVAC industry, a building manager, or simply interested in learning about HVAC controls, this book aims to provide you with a comprehensive and practical guide to understanding and utilizing HVAC controls effectively. It is my hope that this book will serve as a valuable resource, equipping you with the knowledge and insights needed to navigate the world of HVAC controls, make informed decisions, and contribute to the design, operation, and maintenance of efficient and comfortable indoor environments. So, let's embark on this journey together, exploring the fascinating world of HVAC controls and unlocking the potential for energy-efficient, sustainable, and comfortable buildings.
Author : C. P. Botha
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (956 download)
Download or read book Simulation of a Building Heating, Ventilating and Air-conditioning System written by C. P. Botha and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Simulation is one of the oldest and also among the most important tools available to engineers. In the building Heating, Ventilating and Air-Conditioning (HVAC) community the availability and/or functionality of simulation tools is limited and it is difficult to determine whether the simulation models accurately represent reality. The purpose of this study was to accurately verify one such a simulation model and then to extend the study to two unique applications. Comprehensive structural, comfort and energy audits were performed to construct a suitable simulation model with the aid of the control simulation package: QUICK Control. The model was then verified against measured building data to ensure an accurate representation of the actual dynamic building response. For the first application various control retrofits were evaluated and the highest potential for energy saving was found. Thereafter the model was implemented to investigate the change in indoor air conditions due to failure of HVAC equipment. Heating, ventilating and air-conditioning in buildings consume a significant portion of the available electrical energy in South Africa. Of this energy up to 30% can be saved by improving the HVAC systems currently installed in the buildings. This could result in savings of up to R400 million. For the building used in this study it was found that up to 66% of the HVAC system's electrical energy consumption could be saved with a payback period of only 9 months. These savings could be achieved by implementing a setback control strategy with an improved time management procedure. Predicting the impact of failing equipment is a difficult task because of the integrated dynamic effect every HVAC component has on the next. With the aid of a comprehensive integrated simulation model the implications of failing can be determined and necessary assessments and precautions can be taken. The results of this study showed that the air-conditioning system under investigation was approximately 100% over designed. Failure of up to 50% was allowable in the cooling equipment before any noticeable impact could be observed in the indoor climate. With further failure the required comfort conditions could not be sustained.
Author : Werner Bouwer
Publisher :
ISBN 13 :
Total Pages : 420 pages
Book Rating : 4.:/5 (613 download)
Download or read book Designing a Dynamic Thermal and Energy System Simulation Scheme for Cross Industry Applications written by Werner Bouwer and published by . This book was released on 2004 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thermal simulation -- Heating ventilation and air-conditioning (HVAC) system simulation -- Ventilation and cooling (VC) system simulation -- Dynamic -- Integrated -- Control simulation -- Component models -- Simulation engine -- User interface -- Building thermal and energy systems -- Mine thermal and energy systems -- Simulation procedure -- Mass flow procedure -- System simulation scheme.
Author : Javad Khazaii
Publisher : Springer
ISBN 13 : 3319110470
Total Pages : 165 pages
Book Rating : 4.3/5 (191 download)
Download or read book Energy-Efficient HVAC Design written by Javad Khazaii and published by Springer. This book was released on 2014-10-17 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides readers with essential knowledge enabling the successful design of today's new energy efficient HVAC systems. The author introduces important concepts such as Knowledge Categorization, Performance Based Design Standards, and Quantification of Uncertainty in Energy Modeling for Buildings. Pivotal topics that all HVAC and architectural engineers must master in order to navigate the green building renaissance are given focused attention, including the role of renewables, air quality, automatic controls, and thermal comfort. Relevant ASHRAE standards, as well as sustainability scoring systems such as BREEAM, HQE, LEED and CASBEE are explained in depth. Armed with the material contained in this practical reference, students and practitioners alike will become more effective and prepared for engineering success.
Author : Charles Nehme
Publisher : Charles Nehme
ISBN 13 :
Total Pages : 98 pages
Book Rating : 4./5 ( download)
Download or read book Heating Load written by Charles Nehme and published by Charles Nehme. This book was released on with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heating Load Calculation: Theory and Practice The calculation of heating load is a cornerstone of building design and thermal comfort management. As we move toward more sustainable and energy-efficient buildings, understanding the dynamics of heat transfer and the intricacies of load calculation becomes even more critical. This book aims to provide a comprehensive guide to both the theoretical underpinnings and practical applications of heating load calculations. Objective The primary objective of this book is to equip engineers, architects, students, and building professionals with the knowledge and tools necessary to accurately determine heating loads for various types of buildings. Whether you are designing a residential home, a commercial office, or an industrial facility, the principles and methodologies discussed herein will serve as a valuable resource. Structure of the Book The book is divided into several key sections: Fundamentals of Heat Transfer: Basics of conduction, convection, and radiation. Thermal properties of building materials. Insulation and its impact on heat transfer. Heating Load Components: External load factors: weather, orientation, and building envelope. Internal load factors: occupancy, equipment, and lighting. Ventilation and infiltration loads. Calculation Methods: Manual calculation techniques. Software tools and their applications. Case studies illustrating real-world scenarios. Energy Efficiency and Sustainability: Impact of building design on heating load. Integration of renewable energy sources. Strategies for reducing heating demand. Advanced Topics: Dynamic thermal modeling. Impact of climate change on heating requirements. Future trends in heating load calculation. Why This Book? With the increasing emphasis on energy efficiency and sustainability in building design, accurate heating load calculation is more important than ever. Miscalculations can lead to oversized or undersized heating systems, resulting in inefficiency, increased costs, and discomfort. This book addresses these challenges by providing a solid foundation in both theory and practice. Who Should Read This Book? This book is intended for: Students: Those studying mechanical engineering, architecture, or related fields. Professionals: Engineers, architects, HVAC specialists, and energy consultants. Enthusiasts: Anyone with an interest in building design and energy efficiency. Acknowledgments The development of this book has been a collaborative effort, drawing on the expertise of numerous professionals and academics. I would like to thank all contributors for their invaluable insights and feedback. Conclusion In the pages that follow, you will find detailed explanations, practical examples, and step-by-step guides to mastering heating load calculations. It is my hope that this book will serve as both an educational tool and a practical reference for your projects and studies. Welcome to the journey of mastering heating load calculations.
Author :
Publisher :
ISBN 13 :
Total Pages : 957 pages
Book Rating : 4.:/5 (727 download)
Download or read book Co-simulation for Performance Prediction of Integrated Building and HVAC Systems - An Analysis of Solution Characteristics Using a Two-body System written by and published by . This book was released on 2010 with total page 957 pages. Available in PDF, EPUB and Kindle. Book excerpt: Integrated performance simulation of buildings and heating, ventilation and airconditioning (HVAC) systems can help reducing energy consumption and increasing occupant comfort. However, no single building performance simulation (BPS) tool offers suffcient capabilities and flexibilities to analyze integrated building systems and to enable rapid prototyping of innovative building and system technologies. One way to alleviate this problem is to use co-simulation to integrate different BPS tools. Co-simulation approach represents a particular case of simulation scenario where at least two simulators solve coupled differential-algebraic systems of equations and exchange data that couples these equations during the time integration. This article analyzes how co-simulation influences consistency, stability and accuracy of the numerical approximation to the solution. Consistency and zero-stability are studied for a general class of the problem, while a detailed consistency and absolute stability analysis is given for a simple two-body problem. Since the accuracy of the numerical approximation to the solution is reduced in co-simulation, the article concludes by discussing ways for how to improve accuracy.
