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Author: Charles Nehme
Publisher: Charles Nehme
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 101
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Book Description
In the realm of building management and environmental engineering, the significance of air handling units (AHUs) cannot be overstated. These sophisticated systems serve as the backbone of HVAC infrastructure, regulating indoor air quality, temperature, and ventilation to create comfortable, healthy, and productive indoor environments. This preface sets the stage for exploring the multifaceted role of AHUs in modern buildings, encompassing their design, operation, and impact on occupant well-being and energy efficiency. From commercial office spaces to healthcare facilities, data centers to manufacturing plants, AHUs play a pivotal role in shaping the indoor environment and enhancing the overall quality of life. Through a comprehensive examination of AHUs, this document aims to provide valuable insights into their functionality, benefits, and best practices for implementation. By delving into case studies, technical specifications, and practical considerations, readers will gain a deeper understanding of how AHUs contribute to sustainable building practices, operational efficiency, and occupant comfort. Whether you are a building manager, HVAC engineer, or curious enthusiast, this exploration of air handling units offers a wealth of knowledge and practical guidance to navigate the complexities of indoor environmental control. Join us on this journey as we uncover the inner workings of AHUs and their transformative impact on the built environment.
Author: Charles Nehme
Publisher: Charles Nehme
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 101
Get Book Here
Book Description
In the realm of building management and environmental engineering, the significance of air handling units (AHUs) cannot be overstated. These sophisticated systems serve as the backbone of HVAC infrastructure, regulating indoor air quality, temperature, and ventilation to create comfortable, healthy, and productive indoor environments. This preface sets the stage for exploring the multifaceted role of AHUs in modern buildings, encompassing their design, operation, and impact on occupant well-being and energy efficiency. From commercial office spaces to healthcare facilities, data centers to manufacturing plants, AHUs play a pivotal role in shaping the indoor environment and enhancing the overall quality of life. Through a comprehensive examination of AHUs, this document aims to provide valuable insights into their functionality, benefits, and best practices for implementation. By delving into case studies, technical specifications, and practical considerations, readers will gain a deeper understanding of how AHUs contribute to sustainable building practices, operational efficiency, and occupant comfort. Whether you are a building manager, HVAC engineer, or curious enthusiast, this exploration of air handling units offers a wealth of knowledge and practical guidance to navigate the complexities of indoor environmental control. Join us on this journey as we uncover the inner workings of AHUs and their transformative impact on the built environment.
Author: A. Bhatia
Publisher: CreateSpace
ISBN: 9781503252547
Category : Air conditioning
Languages : en
Pages : 128
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Book Description
The term Air Handling System' refers to the equipment where air is conditioned to an acceptable level for distribution within the building. An air handling unit often abbreviated as AHU is a very important component of central-air-conditioning system. It is responsible for drawing return air from the indoor spaces, mixing it with outdoor air, conditioning it to the acceptable level for distribution within the building. The modular packaged equipment offered by various manufacturers is pretty standard. HVAC designers can simply spec the performance requirements and pick and choose from a wide array of standard building blocks to assemble a unit that meets their specific project needs. But large majority of air handlers are custom built or tailor made demanding HVAC designer to apply fundament psychrometrics processes to precisely estimate the capacity and airflow requirements, select the fan, coil and other auxiliaries and integrate these properly to the building control system. This 6-hr Quick Book outlines the key design considerations for sizing, selecting and estimating the capacity and airflow rate of air handling systems.At the conclusion of this quick book, the reader will be able to answer: * What is function of Air handling unit and what factors affect its sizing?* How are air-conditioning processes depicted on the psychrometric chart?* What is difference between room sensible and grand sensible heat factor?* How is airflow rate and the cooling coil load determined?* What are the five basic AHU arrangements?* What are the different types and applications of the fans used in air handling applications?* What are the different types of cooling and heating coils?* What are the different types and applications of the filters used in air handling applications?* What are the different types of humidifiers and dehumidifiers?* What are the different types of control valves and their application?* How are the air handling unit controlled and the sequence of operation for critical facility?* What are the energy conservation features in designing air handling systems?
Author: Charles Nehme
Publisher: Charles Nehme
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 49
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Book Description
Welcome to the world of air handling units! In this book, we delve into the fascinating realm of air handling units (AHUs) and explore their vital role in maintaining indoor air quality and ensuring comfort in various environments. AHUs have become an indispensable component of heating, ventilation, and air conditioning (HVAC) systems in residential, commercial, and industrial settings. These units are responsible for the filtration, conditioning, and distribution of air, playing a crucial role in creating a healthy and pleasant atmosphere for occupants. The purpose of this book is to provide a comprehensive overview of air handling units, their components, functions, and the principles behind their operation. Whether you are a seasoned HVAC professional, a student studying mechanical engineering, or simply an enthusiast seeking to expand your knowledge, this book aims to serve as a valuable resource. We will begin our journey by exploring the fundamental concepts of air handling and ventilation, establishing a solid foundation for understanding the significance of AHUs. We will then delve into the inner workings of these units, examining the various components that make up an AHU and their respective roles. Throughout this book, we will cover topics such as air filtration, heating and cooling mechanisms, humidity control, energy efficiency, and control systems. We will also address the importance of maintenance and regular servicing to ensure optimal performance and longevity of AHUs. Moreover, we will discuss different types of air handling units, including packaged AHUs, rooftop units, and custom-built systems, highlighting their unique characteristics and applications. Real-world examples and case studies will be incorporated to provide practical insights and illustrate the diverse uses of AHUs across industries. It is my hope that this book will not only enhance your understanding of air handling units but also inspire you to appreciate the critical role they play in creating healthy and comfortable indoor environments. By delving into the complexities and intricacies of AHUs, we can unlock new possibilities in HVAC design, implementation, and innovation. So, let us embark on this journey together, exploring the world of air handling units and uncovering the secrets behind their efficient and effective operation. May this book serve as a guide, shedding light on the marvels of AHUs and empowering you to make informed decisions when it comes to air handling and ventilation. Enjoy the exploration! Charles Nehme
Author: Charles Nehme
Publisher: Independently Published
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 0
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Book Description
Introduction to Air Handling Units (AHUs) An Air Handling Unit (AHU) is a critical component in heating, ventilation, and air conditioning (HVAC) systems. These units are used to regulate and circulate air as part of a heating, ventilating, and air-conditioning system. Components of an AHU Blower/Fan: Moves air through the AHU and ductwork. Heating/Cooling Coils: Heat exchangers that transfer heat to or from the air passing through them. Filters: Remove particles and contaminants from the air. Humidifiers/Dehumidifiers: Control the humidity level in the air. Mixing Box: Combines return air with fresh air. Dampers: Control the flow of air within the system. Control Systems: Include sensors, thermostats, and controllers to regulate temperature, humidity, and airflow. Types of AHUs Draw-Through AHUs: The fan is located after the air-handling components (such as coils and filters), drawing air through them. Blow-Through AHUs: The fan is located before the air-handling components, blowing air through them. Functionality Ventilation: AHUs bring in fresh air from outside and expel stale air from inside, ensuring indoor air quality. Temperature Control: By heating or cooling the air, AHUs maintain desired indoor temperatures. Humidity Control: Adding or removing moisture from the air to maintain comfortable humidity levels. Air Filtration: Removing dust, pollen, and other airborne particles to improve air quality. Applications Commercial Buildings: Offices, shopping malls, hospitals, and schools where maintaining a comfortable and healthy indoor environment is crucial. Industrial Settings: Factories and laboratories that require precise environmental control to ensure product quality and safety. Residential Buildings: High-end homes and apartment complexes that need advanced climate control and air quality management. Benefits Energy Efficiency: Modern AHUs are designed to be energy-efficient, reducing operational costs. Comfort: Maintain consistent and comfortable indoor environments. Health: Improve indoor air quality by filtering pollutants and controlling humidity, which can reduce the prevalence of mold and allergens. Flexibility: Can be customized to meet the specific requirements of different buildings and applications. Maintenance Regular maintenance is essential for the efficient operation of AHUs. This includes: Filter Replacement: To ensure air quality and system efficiency. Coil Cleaning: To maintain heat exchange efficiency. Fan Maintenance: To prevent mechanical failures and ensure proper airflow. Checking Control Systems: To ensure they are operating correctly and responding to environmental changes. Conclusion Air Handling Units are vital for creating and maintaining comfortable, healthy, and efficient indoor environments in a variety of settings. Understanding their components, functionality, and maintenance requirements can help optimize their performance and extend their lifespan.
Author: Shengwei Wang
Publisher: Routledge
ISBN: 1134025106
Category : Business & Economics
Languages : en
Pages : 265
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Book Description
Giving you a combination of general principles, applied practice and information on the state-of-the-art, this book will give you the information you need to incorporate the latest systems and technologies into your building projects. It focuses on a number of important issues, such as: Network communication protocols and standards, including the application of the internet. The integration and interfacing of building automation subsystems and multiple building systems. Local and supervisory control strategies for typical building services systems. The automation system configuration and technologies for air-conditioning control, lighting system control, security and access control, and fire safety control. Whether you’re a project manager or engineer planning the systems set-up for a high value building, or a building engineering or management student looking for a practical guide to automation and intelligent systems, this book provides a valuable introduction and overview.
Author: The American Institute of Architects
Publisher: John Wiley & Sons
ISBN: 0471700916
Category : Architecture
Languages : en
Pages : 1120
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Book Description
Since 1932, the ten editions of Architectural Graphic Standards have been referred to as the "architect's bible." From site excavation to structures to roofs, this book is the first place to look when an architect is confronted with a question about building design. With more than 8,000 architectural illustrations, including both reference drawings and constructible architectural details, this book provides an easily accessible graphic reference for highly visual professionals. To celebrate seventy-five years as the cornerstone of an industry, this commemorative Eleventh Edition is the most thorough and significant revision of Architectural Graphic Standards in a generation. Substantially revised to be even more relevant to today's design professionals, it features: An entirely new, innovative look and design created by Bruce Mau Design that includes a modern page layout, bold second color, and new typeface Better organized-- a completely new organization structure applies the UniFormat(r) classification system which organizes content by function rather than product or material Expanded and updated coverage of inclusive, universal, and accessible design strategies Environmentally-sensitive and sustainable design is presented and woven throughout including green materials, LEEDS standards, and recyclability A bold, contemporary new package--as impressive closed as it is open, the Eleventh Edition features a beveled metal plate set in a sleek, black cloth cover Ribbon Markers included as a convenient and helpful way to mark favorite and well used spots in the book All New material Thoroughly reviewed and edited by hundreds of building science experts and experienced architects, all new details and content including: new structural technologies, building systems, and materials emphasis on sustainable construction, green materials, LEED standards, and recyclability expanded and updated coverage on inclusive, universal, and accessible design strategies computing technologies including Building Information Modeling (BIM) and CAD/CAM new information on regional and international variations accessibility requirements keyed throughout the text new standards for conducting, disseminating, and applying architectural research New and improved details With some 8,500 architectural illustrations, including both reference drawings and constructible architectural details, Architectural Graphic Standards continues to be the industry's leading, easily accessible graphic reference for highly visual professionals.
Author: Jan F. Kreider
Publisher: CRC Press
ISBN: 1420036467
Category : Technology & Engineering
Languages : en
Pages : 666
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Book Description
Over the past 20 years, energy conservation imperatives, the use of computer based design aids, and major advances in intelligent management systems for buildings have transformed the design and operation of comfort systems for buildings. The "rules of thumb" used by designers in the1970s are no longer viable. Today, building systems engineers must
Author: Charles Nehme
Publisher: Charles Nehme
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 68
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Book Description
In today's rapidly evolving technological landscape, ensuring the reliability, efficiency, and compliance of air handling units (AHUs) is more critical than ever. As the backbone of modern HVAC systems, AHUs play a pivotal role in maintaining indoor air quality and thermal comfort in various environments, from residential buildings to complex industrial facilities. Given their importance, the Factory Acceptance Test (FAT) for AHUs has emerged as a crucial phase in the manufacturing and commissioning process, offering a robust framework to verify that these units meet the stringent demands of performance and safety before they are installed and operated. This book, "Air Handling Unit Factory Acceptance Test," is designed to be an indispensable resource for engineers, project managers, quality assurance professionals, and anyone involved in the design, manufacturing, and testing of AHUs. It aims to provide a comprehensive guide to the principles, procedures, and best practices of conducting effective FATs, ensuring that AHUs function as intended and deliver optimal performance throughout their lifecycle. Drawing on years of industry experience and the latest advancements in technology, this book covers every aspect of FAT, from initial preparations and detailed testing procedures to data analysis and post-FAT activities. It offers practical insights, step-by-step protocols, and real-world case studies to help readers navigate the complexities of FAT with confidence and precision. The motivation behind this book stems from the recognition that a well-executed FAT not only guarantees the quality and reliability of AHUs but also significantly reduces the risk of costly failures and operational disruptions down the line. By adhering to the guidelines and recommendations provided in this book, stakeholders can achieve a higher standard of quality assurance, thereby enhancing the overall value and dependability of their HVAC systems. I would like to express my gratitude to the many professionals and experts who have contributed their knowledge and experience to this endeavor. Their insights have been invaluable in shaping the content of this book and ensuring that it addresses the practical challenges faced by practitioners in the field. As you embark on this journey through the intricacies of AHU FAT, I hope that this book serves as a valuable tool in your professional toolkit, helping you to execute tests with greater accuracy, efficiency, and confidence. Whether you are a seasoned veteran or new to the field, the principles and practices outlined here will equip you with the knowledge and skills needed to excel in your role and contribute to the successful implementation of high-performing air handling units. Thank you for choosing this book as your guide. I trust that you will find it both informative and empowering. Audience The audience for Factory Acceptance Testing (FAT) for Air Handling Units (AHUs) may include: Engineers and Technicians: Involved in the design, installation, and maintenance of HVAC systems, including AHUs. They require detailed technical information and procedures related to FAT. Project Managers: Responsible for overseeing AHU projects, including FAT activities. They need to ensure that the FAT process is completed on time, within budget, and meets project requirements. Manufacturers and Suppliers: Involved in manufacturing AHUs and conducting FAT to verify product quality and compliance with specifications. They require guidance on conducting effective FAT and meeting customer expectations. Regulatory Authorities: Responsible for enforcing standards and regulations related to AHUs and HVAC systems. They need to understand FAT procedures and documentation to ensure compliance. Facility Managers: Responsible for the operation and maintenance of HVAC systems, including AHUs. They may need information on FAT outcomes to understand AHU capabilities and performance. Consultants and Designers: Involved in specifying AHUs for building projects. They require knowledge of FAT procedures and documentation to ensure AHUs meet project requirements. End-users and Owners: Ultimately responsible for the performance and reliability of AHUs in their facilities. They may need information on FAT outcomes to make informed decisions about AHU selection and operation.
Author: David L. Grumman
Publisher: McGraw-Hill Companies
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 200
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Book Description
Author: Robert McDowall
Publisher: Elsevier
ISBN: 0080569927
Category : Technology & Engineering
Languages : en
Pages : 359
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Book Description
A hard copy companion to the eLearning course that serves as a practical guide to the principles and characteristics of controls, and how to apply them in the use, selection, specification and design of controls systems.
