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Author :
Publisher :
ISBN 13 :
Total Pages : 998 pages
Book Rating : 4.:/5 (926 download)
Download or read book Heating, Ventilation and Air Conditioning System Optimization written by and published by . This book was released on 2007 with total page 998 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Charles Nehme
Publisher : Charles Nehme
ISBN 13 :
Total Pages : 88 pages
Book Rating : 4./5 ( download)
Download or read book Variable Air Volume (VAV) Systems: Optimizing HVAC Efficiency written by Charles Nehme and published by Charles Nehme. This book was released on with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: Preface: Navigating the World of Variable Air Volume (VAV) Systems Welcome to the fascinating world of Variable Air Volume (VAV) systems, where the art and science of HVAC (Heating, Ventilation, and Air Conditioning) converge to create efficient, comfortable, and environmentally friendly indoor environments. If you've ever wondered how modern buildings manage to maintain just the right temperature, humidity, and air quality while minimizing energy consumption, you're about to embark on a journey of discovery. In today's rapidly changing world, energy efficiency and sustainability have become paramount concerns. Whether you're an HVAC professional seeking to deepen your knowledge, a building owner aiming to optimize your facility's performance, or simply a curious individual eager to understand the systems behind your daily comfort, this book is your gateway to mastering VAV systems. **Unveiling the Complexity Behind the Comfort** Variable Air Volume (VAV) systems are the hidden heroes of climate control. They are the intelligent, adaptable systems responsible for regulating the air we breathe in offices, hospitals, shopping malls, and countless other spaces. Yet, these systems often operate unnoticed, silently adjusting airflow and temperature to create a pleasant, productive environment. This book takes you behind the scenes, unraveling the complexity of VAV systems and revealing the inner workings of the technology that has transformed the way we experience indoor comfort. From the fundamentals of HVAC to the intricate design and control strategies of VAV systems, you'll gain a deep understanding of how these systems contribute to energy savings, enhanced comfort, and a greener planet. **Your Guide to VAV Mastery** Our journey begins with the basics, ensuring that everyone, regardless of their prior knowledge, can grasp the core concepts. We'll explore the components of VAV systems, discuss their benefits, and delve into the design and installation processes. You'll learn how to troubleshoot common issues, conduct maintenance, and even retrofit existing systems for greater efficiency. But this book doesn't stop at the basics. We'll explore advanced topics such as energy-efficient practices, sustainable design principles, and the integration of VAV systems into smart buildings. You'll gain insights into real-world applications across various sectors, from commercial buildings to healthcare facilities, all while keeping an eye on future trends and innovations that promise to shape the HVAC landscape. **Empowering You with Knowledge** Our aim is to empower you with knowledge that will not only help you excel in your professional pursuits but also make informed decisions about the indoor environments you inhabit. By the time you reach the last page, you'll be equipped to optimize VAV systems, reduce energy consumption, and contribute to a more sustainable future. As you embark on this educational journey, keep in mind that VAV systems are not just about engineering and technology; they're about enhancing the quality of life for people in buildings all around the world. I hope you find this book informative, engaging, and inspiring, and I encourage you to apply the knowledge you gain here to make a positive impact on the spaces we live and work in. Let's venture forth into the world of Variable Air Volume (VAV) systems, where innovation meets comfort, and where we discover the limitless potential of efficient HVAC solutions. Best regards, Charles Nehme HVAC Q & A What is HVAC? HVAC stands for heating, ventilation, and air conditioning. It is a system of technology that controls the temperature, humidity, and ventilation of indoor and restricted spaces. How does HVAC work? HVAC systems typically use a combination of heating and cooling elements, fans, and ductwork to control the indoor environment. The specific components and operation of an HVAC system will vary depending on the type of system and the specific needs of the building. What are the different types of HVAC systems? There are many different types of HVAC systems, but some of the most common include: * Central heating and cooling systems * Split systems * Ductless mini-split systems * Heat pumps * Furnaces * Air conditioners How do I choose the right HVAC system for my home? When choosing an HVAC system for your home, there are a number of factors to consider, such as the size of your home, the climate you live in, your budget, and your energy efficiency goals. It is important to consult with a qualified HVAC professional to get the best advice for your specific needs. What is the best way to maintain my HVAC system? The best way to maintain your HVAC system is to have it inspected and serviced by a qualified professional on a regular basis. This will help to ensure that your system is operating efficiently and safely. You should also change your air filter regularly, according to the manufacturer's recommendations. Short answer: HVAC stands for heating, ventilation, and air conditioning. It is a system of technology that controls the temperature, humidity, and ventilation of indoor and restricted spaces. There are many different types of HVAC systems, and the best way to choose the right one for your home is to consult with a qualified HVAC professional. To maintain your HVAC system, have it inspected and serviced by a qualified professional on a regular basis and change your air filter regularly.
Author : Cliff Odhiambo Nudi
Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.:/5 (132 download)
Download or read book Optimization of Heating, Ventilation, and Air-conditioning (HVAC) Chilled Water Plant Systems written by Cliff Odhiambo Nudi and published by . This book was released on 2020 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heating, Ventilation, and Air-conditioning accounts for about 60% of the total energy consumed in commercial facilities including office buildings, hospitals, retail stores, warehouses, campuses, manufacturing facilities, medical facilities, etc. As the cost of electricity and energy continue to rise, building owners and facility managers continue to witness a rise in the Total Cost of Ownership. Chilled water plant system is the largest consumer of energy in HVAC system consuming 75% of the total energy used in HVAC according to the Department of Energy. Operating chilled water plant systems at the recommended AHRI Standard 550/590 for performance rating of water chilling and heat pumps temperature set-points seldom results in optimized operation and cost savings, since factors such as operation schedules, site-specific conditions such as prevailing ambient conditions, part load operations, keep on changing. The aim of this project was to design an optimized heating, ventilation, and air-conditioning chilled water system for a 100,000 square feet facility complex in Houston, Texas. By selecting a chilled water distribution system; chilled water temperatures, flow rate, and sizes; condenser water distribution system, condenser water temperatures, flow rate, and pipe sizes; cooling tower approach temperatures; and piping system optimization, a saving of 25% on the annual energy costs at peak load operations of the complex facility was obtained. This analysis also showed that as the chilled water supply temperature is set upwards, the pump energy increases but the chiller energy and the cooling tower energy decreases resulting in a positive net system gain.
Author : Charles Nehme
Publisher : Charles Nehme
ISBN 13 :
Total Pages : 39 pages
Book Rating : 4./5 ( download)
Download or read book HVAC Psychrometrics: Understanding and Optimizing Air Conditioning Systems written by Charles Nehme and published by Charles Nehme. This book was released on with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt: Air conditioning systems play a crucial role in providing comfortable indoor environments, whether it's in residential, commercial, or industrial settings. Understanding the principles of psychrometrics is essential for designing, operating, and optimizing these HVAC (Heating, Ventilation, and Air Conditioning) systems effectively. Psychrometrics is the study of the thermodynamic properties of air and its moisture content. It involves the measurement and analysis of parameters such as temperature, humidity, pressure, and enthalpy to determine the state of air and its ability to hold moisture. These parameters are crucial for designing air conditioning systems that can maintain optimal indoor conditions for human comfort, equipment operation, and various industrial processes. This book aims to provide a comprehensive understanding of psychrometrics and its practical applications in HVAC systems. It explores the fundamental concepts and equations related to air properties, psychrometric charts, and the psychrometric processes involved in air conditioning. Moreover, it delves into the various components and systems that make up an air conditioning system, such as air handlers, cooling coils, refrigeration cycles, and ventilation systems. Optimizing air conditioning systems is a key focus of this book. By leveraging the principles of psychrometrics, engineers and technicians can enhance the efficiency and performance of HVAC systems, resulting in energy savings, improved indoor air quality, and increased occupant comfort. The book covers topics such as load calculations, equipment selection, airflow distribution, humidity control strategies, and system optimization techniques. Throughout the book, real-world examples, case studies, and practical tips are provided to illustrate the application of psychrometrics in different scenarios. Whether you are a HVAC professional, engineer, technician, or someone interested in understanding the inner workings of air conditioning systems, this book serves as a valuable resource to enhance your knowledge and skills. It is worth noting that while this book provides a comprehensive overview of psychrometrics and air conditioning systems, it does not delve into the intricacies of HVAC design and installation. For detailed design guidelines and standards, it is recommended to refer to relevant industry codes, manuals, and regulations. With a solid understanding of psychrometrics and its role in air conditioning systems, readers will be equipped with the knowledge necessary to design, optimize, and maintain efficient HVAC systems, creating comfortable and healthy indoor environments for all. Let us embark on this journey into the fascinating world of HVAC psychrometrics and unlock the secrets of optimizing air conditioning systems.
Author : Rajeev Kamal
Publisher :
ISBN 13 :
Total Pages : 141 pages
Book Rating : 4.:/5 (11 download)
Download or read book Optimization and Performance Study of Select Heating Ventilation and Air Conditioning Technologies for Commercial Buildings written by Rajeev Kamal and published by . This book was released on 2017 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt: The performance of equivalent electric heat pump was simulated from a building energy model developed to mimic the measured building loads. An economic comparison of GEHPs and conventional electrical heat pumps was done based on the measured and simulated results. The average performance of the GEHP units was estimated to lie between those of EER-9.2 and EER-11.8 systems. The performance of GEHP systems suffers due to lower efficiency at part load operation. The study highlighted the need for optimum system sizing for GEHP/HVAC systems to meet the building load to obtain better performance in buildings.
Author : Nishith Patel
Publisher :
ISBN 13 :
Total Pages : 188 pages
Book Rating : 4.:/5 (19 download)
Download or read book Economic Optimization of Large-scale Commercial Building Heating, Ventilation, and Air Conditioning Systems written by Nishith Patel and published by . This book was released on 2018 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heating, ventilation, and air conditioning (HVAC) systems of commercial buildings have received significant attention recently due to the large amounts of energy consumed in these applications. Substantial energy cost savings are possible for HVAC systems in utility markets with time-varying price structures through load shifting by using energy storage resources. While model predictive control has been recommended as a strategy to attain these savings, wide-scale implementation has not yet occurred. In large-scale commercial applications with hundreds of zones, solving a single comprehensive mixed-integer optimization problem online for MPC in real time is not feasible. In this dissertation, a hierarchical decomposition of the overall problem is proposed to address this gap. The proposed hierarchical decomposition uses aggregate models of the airside and waterside problems to reduce complexity, and iterations are not required between the subsystem controllers. Energy cost savings between 5% and 40% can be achieved with this control system based on the amount of energy storage and the economic incentives for load shifting. The decomposition framework is extended to handled systems with embedded battery units. Working towards the long-term objective of implementation, methods for model development are also discussed. Models and data are developed for a large-scale case study loosely based on the Stanford University central HVAC plant. The parameters from the case study are made publicly available for researchers in the HVAC community who would like to design other control architectures and evaluate their performance. The case study is also used to demonstrate that the proposed decomposition can be solved in real time. Finally, a procedure for tracking zone regions using MPC is outlined. Nominal stability for this controller is proven, and its benefits in control performance over heuristic strategies is exemplified via simulation studies.
Author : Mohsen Sheikholeslami Kandelousi
Publisher : BoD – Books on Demand
ISBN 13 : 1789844320
Total Pages : 172 pages
Book Rating : 4.7/5 (898 download)
Download or read book HVAC System written by Mohsen Sheikholeslami Kandelousi and published by BoD – Books on Demand. This book was released on 2018-11-14 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book, various aspects of heating, ventilation, and air-conditioning (HVAC) systems are investigated. HVAC systems are milestones of building mechanical systems that provide thermal comfort for occupants accompanied with indoor air quality. HVAC systems can be classified into central and local systems according to multiple zones, location, and distribution. Primary HVAC equipment includes heating equipment, ventilation equipment, and cooling or air-conditioning equipment. Central HVAC systems are located away from buildings in a central equipment room and deliver the conditioned air by a delivery ductwork system. Central HVAC systems contain all-air, air-water, or all-water systems. Two systems should be considered as central such as heating and cooling panels and water-source heat pumps.
Author : Xin Zhang
Publisher : Springer Nature
ISBN 13 : 9811970912
Total Pages : 167 pages
Book Rating : 4.8/5 (119 download)
Download or read book Principle, Design and Optimization of Air Balancing Methods for the Multi-zone Ventilation Systems in Low Carbon Green Buildings written by Xin Zhang and published by Springer Nature. This book was released on 2022-10-17 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a systematic study on the air balancing technologies in heating, ventilation and air conditioning (HVAC) systems. Several modern air balancing methods, including advanced control-based air balancing, data-driven-based air balancing, and energy-saving-oriented air balancing, are introduced in this book to balance the air duct system. Furthermore, this book provides clear instructions for both HVAC designers and engineers, as well as researchers, on how to design and balance duct systems for improved performance and energy efficiency.
Author : Charles Nehme
Publisher : Charles Nehme
ISBN 13 :
Total Pages : 51 pages
Book Rating : 4./5 ( download)
Download or read book HVAC Balancing written by Charles Nehme and published by Charles Nehme. This book was released on with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt: Welcome to "HVAC Balancing Made Easy: A Comprehensive Guide." This book aims to provide a comprehensive understanding of HVAC balancing and equip readers with the knowledge and tools necessary to achieve optimal performance and efficiency in HVAC systems. Heating, ventilation, and air conditioning (HVAC) systems play a crucial role in providing comfort and maintaining indoor air quality in residential, commercial, and industrial buildings. However, even the most advanced and well-designed HVAC systems can fall short of their potential if they are not properly balanced. HVAC balancing is the process of ensuring that air and water flow rates throughout the system align with design specifications. It involves measuring, adjusting, and optimizing airflow and water flow to achieve proper distribution and control. A balanced HVAC system operates more efficiently, delivers consistent comfort, minimizes energy consumption, and reduces maintenance needs. Unfortunately, HVAC balancing is often overlooked or misunderstood. Many buildings suffer from imbalanced systems, resulting in uneven temperature distribution, poor indoor air quality, excessive energy usage, and increased wear and tear on equipment. This not only impacts occupant comfort but also leads to higher energy bills and costly repairs. This book aims to bridge the knowledge gap and demystify the process of HVAC balancing. Whether you are an HVAC professional, building owner, facility manager, or someone with a keen interest in understanding HVAC systems, this guide will provide you with valuable insights and practical techniques to optimize the performance of your HVAC system. Throughout the chapters, we will explore the fundamentals of HVAC systems, delve into the intricacies of airflow and water flow principles, and discuss various balancing techniques for different types of systems. You will learn how to assess and diagnose balancing issues, utilize the right tools and equipment, and troubleshoot common problems that arise during the balancing process. Furthermore, we will emphasize the importance of proper documentation, reporting, and ongoing maintenance to ensure the long-term effectiveness of HVAC balancing efforts. Real-world case studies and best practices will be shared to illustrate the impact of well-executed balancing projects and inspire you to implement these principles in your own work. It is our hope that this guide will empower you to take control of HVAC balancing and unlock the full potential of your systems. By optimizing airflow and water flow, you will not only enhance occupant comfort but also contribute to a sustainable future by reducing energy consumption and environmental impact. We encourage you to dive into the chapters, explore the concepts, and apply the knowledge gained. Let this book serve as your roadmap to HVAC balancing success, enabling you to create healthier, more efficient, and comfortable indoor environments. Remember, a properly balanced HVAC system is not just a luxury—it's a necessity. Let's embark on this journey together and make HVAC balancing easy and accessible for everyone.
Author : Napoleon Enteria
Publisher : Springer
ISBN 13 : 9811030472
Total Pages : 327 pages
Book Rating : 4.8/5 (11 download)
Download or read book Desiccant Heating, Ventilating, and Air-Conditioning Systems written by Napoleon Enteria and published by Springer. This book was released on 2016-12-27 with total page 327 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the necessary fundamental knowledge in the research, development, design, selection, and application of desiccant heating, ventilating, and air-conditioning systems. It covers the established installations in different climatic conditions and building types. In addition, advanced performance evaluation techniques are presented, covering thermodynamic, economic, and environmental aspects. Hence, the book is an important resource for undergraduate and graduate students, design and installation engineers, researchers and scientists, building owners and occupants, and energy and environmental policy makers.
Author : Robert Smith Burrus
Publisher :
ISBN 13 :
Total Pages : 242 pages
Book Rating : 4.:/5 (77 download)
Download or read book Towards the Optimization of Environmental Control Systems (heating, Ventilation, and Air Conditioning Design) written by Robert Smith Burrus and published by . This book was released on 1981 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Zhongfan Zhao
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (135 download)
Download or read book Synergy of Self-optimizing Control and Real-time Optimization With Applications to Building Energy Systems written by Zhongfan Zhao and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation research investigates on energy optimal operations of heating, ventilation and air conditioning (HVAC) systems for residential and commercial buildings, with investigations on two classes of approaches, i.e. Self-optimizing Control (SOC) based control structure optimization and Extremum Seeking Control (ESC) based real-time optimization, as well as their synergy. As the preliminary study, three existing ESC methods are compared, i.e. the conventional dither ESC, input-output correlation ESC (IOC-ESC), and proportion-integral ESC (PI-ESC). The primary goal for this study is to evaluate the performance robustness of each ESC to parametric variation. The three ESC strategies are first evaluated with simulation study using a Modelica model of an air source heat pump (ASHP) model. Then, laboratory tests are conducted with IOC-ESC and CON-ESC on a mini-split air conditioning system. Both simulation and experimental results show that PI-ESC archives fastest convergent speed, while IOC-ESC is most robust to parametric variation among three methods. For plant operation with multiple potential inputs for ESC design, an ESC integrated online input selection approach is proposed based on Hessian estimation and SVD analysis. The dimensionality of manipulated inputs can be reduced by pruning and/or combining the available manipulated inputs. Error bound analysis is conducted for the proposed input selection process. Then, the proposed procedure is validated with both numerical example and a Modelica based chilled-water plant model. The SOC based control structure optimization is studied from three perspectives, with the key focus of how to determine the optimal selection of controlled variables (CVs) with online or historical data. First, an online local SOC procedure is proposed by using the ditherdemodulation based gradient and Hessian estimates that have been developed in ESC, and the proposed method is validated with the Modelica ASHP model. Secondly, a data-driven global SOC method is proposed by applying the technique of sparse identification for nonlinear dynamics (SINDy) to historical data. For the static plant model thus derived, tracking the necessary condition of optimality yields the globally optimal solutions of CV selection in an analytical fashion. Such SOC framework is validate with the Modelica-based chilled-water plant operation. Then, this data-driven global SOC approach is extended to plant operation with wide range of disturbance variations which is subject to the changes of active constraint set. With the plant model obtained by the SINDy based procedure, a parametric programming enabled constrained optimization framework is utilized to derive the controlled variables for each region of different active constraint set. Again, simulation based validation is conducted with the Modelica based chilled-water plant model.
Author : IEEE Staff
Publisher :
ISBN 13 : 9781538658970
Total Pages : pages
Book Rating : 4.6/5 (589 download)
Download or read book 2018 Third International Conference on Fog and Mobile Edge Computing (FMEC) written by IEEE Staff and published by . This book was released on 2018-04-23 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: FMEC 2018 conference aims to investigate the opportunities and requirements for Mobile Edge Computing dominance In addition, it seeks for novel contributions that help mitigating Mobile Edge Computing challenges
Author : Sam Monger
Publisher : Simon & Schuster
ISBN 13 :
Total Pages : 506 pages
Book Rating : 4.3/5 (91 download)
Download or read book HVAC Systems written by Sam Monger and published by Simon & Schuster. This book was released on 1992 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt: HVAC Systems is intended for HVAC engineers, designers facilities engineers, plant engineers, cheif engineers, utility engineers, energy managers, energy management technicians, energy auditors, HVAC mechanics and operating personel, refrigeration mechanics and air and water balancing technicians. The book takes you on a guided tour of the various HVAC systems and their components. It uses numerous drawings and examples to show you how the components and systems should operate, how to test the systems for actual operating conditions and how to improve operation and performance. This is an exceptional source book packed with useful checklists, equations, tables, charts, curves, forms and definitions.
Author : Quansheng Zhang
Publisher : Springer
ISBN 13 : 3319335901
Total Pages : 361 pages
Book Rating : 4.3/5 (193 download)
Download or read book Automotive Air Conditioning written by Quansheng Zhang and published by Springer. This book was released on 2016-08-10 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents research advances in automotive AC systems using an interdisciplinary approach combining both thermal science, and automotive engineering. It covers a variety of topics, such as: control strategies, optimization algorithms, and diagnosis schemes developed for when automotive air condition systems interact with powertrain dynamics. In contrast to the rapid advances in the fields of building HVAC and automotive separately, an interdisciplinary examination of both areas has long been neglected. The content presented in this book not only reveals opportunities when interaction between on-board HVAC and powertrain is considered, but also provides new findings to achieve performance improvement using model-based methodologies.
Author : Ye Yao
Publisher : Springer
ISBN 13 : 3662533138
Total Pages : 496 pages
Book Rating : 4.6/5 (625 download)
Download or read book Modeling and Control in Air-conditioning Systems written by Ye Yao and published by Springer. This book was released on 2016-10-01 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book investigates the latest modeling and control technologies in the context of air-conditioning systems. Firstly, it introduces the state-space method for developing dynamic models of all components in a central air-conditioning system. The models are primarily nonlinear and based on the fundamental principle of energy and mass conservation, and are transformed into state-space form through linearization. The book goes on to describe and discuss the state-space models with the help of graph theory and the structure-matrix theory. Subsequently, virtual sensor calibration and virtual sensing methods (which are very useful for real system control) are illustrated together with a case study. Model-based predictive control and state-space feedback control are applied to air-conditioning systems to yield better local control, while the air-side synergic control scheme and a global optimization strategy based on the decomposition-coordination method are developed so as to achieve energy conservation in the central air-conditioning system. Lastly, control strategies for VAV systems including total air volume control and trim & response static pressure control are investigated in practice.
Author : Khairy Ahmed Helmy Kobbacy
Publisher : Springer Science & Business Media
ISBN 13 : 1848000111
Total Pages : 649 pages
Book Rating : 4.8/5 (48 download)
Download or read book Complex System Maintenance Handbook written by Khairy Ahmed Helmy Kobbacy and published by Springer Science & Business Media. This book was released on 2008-04-15 with total page 649 pages. Available in PDF, EPUB and Kindle. Book excerpt: This utterly comprehensive work is thought to be the first to integrate the literature on the physics of the failure of complex systems such as hospitals, banks and transport networks. It has chapters on particular aspects of maintenance written by internationally-renowned researchers and practitioners. This book will interest maintenance engineers and managers in industry as well as researchers and graduate students in maintenance, industrial engineering and applied mathematics.
