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Author : Huilin Li
Publisher :
ISBN 13 :
Total Pages : 164 pages
Book Rating : 4.:/5 (34 download)
Download or read book Transient Behavior of Air Distribution Systems in Buildings written by Huilin Li and published by . This book was released on 2002 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : John Swaffield
Publisher : Routledge
ISBN 13 : 1134006977
Total Pages : 359 pages
Book Rating : 4.1/5 (34 download)
Download or read book Transient Airflow in Building Drainage Systems written by John Swaffield and published by Routledge. This book was released on 2010-04-27 with total page 359 pages. Available in PDF, EPUB and Kindle. Book excerpt: Giving you the first comprehensive presentation of the ground breaking research undertaken at Heriot Watt University, with Research Council and industrial funding, this book brings a new perspective to the design of building drainage and vent systems. It provides the building services community with clear and verifiable design methods that will be robust enough to meet challenges such as climate change and water conservation; population migration to the mega cities of the developing world, and the consequent pressures of user concentration; the rise of the prestige building and the introduction of new appliances and control strategies. These all combine to make traditional codified design guidance insufficient. Many assumptions in existing codes defining the entrained airflows within building drainage vent systems cannot be theoretically supported, so designers concerned with these systems need analysis and simulation capabilities which are at least as reliable as those enjoyed by other building services practitioners. The Method of Characteristics solution techniques which are well established in the pressure surge field are now used to provide solutions for drainage designers. The material is applied to a whole range of abstract scenarios then to a series of real world applications including the forensic modelling of the SARS virus spread within Amoy Gardens in 2003 and the refurbishment of the O2 Dome. Applications to specialised services, including underground station drainage and highly infectious disease treatment facilities are discussed and demonstrated, alongside the use of design and simulation techniques in support of product development. Aimed at both professional and academic users, this book serves both as a design aid and as a core text for specialist masters courses in public health and building services engineering.
Author : Kala K. Fleming
Publisher : American Water Works Association
ISBN 13 : 1583215115
Total Pages : 140 pages
Book Rating : 4.5/5 (832 download)
Download or read book Susceptibility of Distribution Systems to Negative Pressure Transients written by Kala K. Fleming and published by American Water Works Association. This book was released on 2006 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: Low or negative pressure transients (also called surge or water hammer) create temporary opportunities for external chemical and microbial contaminants at higher pressure to enter the water distribution system, creating potential health hazard and potential weakening of distribution pipes, leading to failure. This study investigates how such events as power outages, pump shutdowns, valve operations, main flushing, firefighting, and main breaks can create significant rapid, temporary drops in system pressure. The report offers useful recommendations for using surge models to optimally locate pressure monitors and to minimize the occurrence and impact from low- and negative-pressure transients.
Author : Essam E. Khalil
Publisher : CRC Press
ISBN 13 : 1466594659
Total Pages : 264 pages
Book Rating : 4.4/5 (665 download)
Download or read book Air Distribution in Buildings written by Essam E. Khalil and published by CRC Press. This book was released on 2013-11-22 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Air Distribution in Buildings is a concise and practical guide to air distribution system design and managing air conditioning systems in buildings. Making use of 40 years of experience in the design of air conditioning and ventilations systems, and other electromechanical services, this structured reference for built environment engineering offers
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 : David M. Auslander
Publisher :
ISBN 13 :
Total Pages : 44 pages
Book Rating : 4.:/5 (318 download)
Download or read book Control of On-off Equipment in Buildings written by David M. Auslander and published by . This book was released on 2002 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : H.B. Awbi
Publisher : Elsevier
ISBN 13 : 9780080430171
Total Pages : 746 pages
Book Rating : 4.4/5 (31 download)
Download or read book Air Distribution in Rooms written by H.B. Awbi and published by Elsevier. This book was released on 2000 with total page 746 pages. Available in PDF, EPUB and Kindle. Book excerpt: The air distribution in occupied spaces is a major issue of public concern. It is widely recognized that the quality of air and the nature of airflow can affect the health of occupants and the energy consumed in buildings and transport vehicles. ROOMVENT is the principal international conference in the field of air distribution. It was first initiated in 1987 by SCANVAC, the Scandinavian Federation of Heating, Ventilating and Sanitary Engineering Associations in Denmark, Finland, Iceland, Norway and Sweden. The aim of the Conference is to bring together researchers from universities and research institutes, engineers from industry and government officials and policy makers, with the goal of experiencing the latest techniques for measuring and analyzing indoor air flow, the visualization of indoor air flow patterns, the evaluation of ventilation parameters and the most recent developments in computer simulation techniques of room airflow. It is hoped that the theme of ROOMVENT 2000 "Ventilation for Health and Sustainable Environment" will set the scene for room air distribution research and development for the new millennium.
Author : National Institute of Standards and Technology (U.S.)
Publisher :
ISBN 13 :
Total Pages : 442 pages
Book Rating : 4.:/5 (31 download)
Download or read book Publications of the National Institute of Standards and Technology ... Catalog written by National Institute of Standards and Technology (U.S.) and published by . This book was released on 1983 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.:/5 (727 download)
Download or read book Residential Air-distribution Systems written by and published by . This book was released on 1992 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Residential air distribution systems, used both for heating and cooling and less commonly for ventilation, have important interactions with the building envelope. These systems can either be enclosed within the envelope or pass outside the envelope (in which case they represent an extension of the envelope). This paper addresses the three major types of interaction between air distribution systems that pass outside the envelope and single-family buildings: (1) duct leakage and duct conduction when the distribution fan is off, which act like a thermal bridge in the envelope; (2) duct leakage during system operation, which creates large changes in the quantity and location of air infiltration and exfiltration through the envelope; and (3) supply/return flow imbalances within individual zones during fan operation, which create elevated envelope pressure differentials, infiltration rates, and exfiltration rates. A simulation tool that was developed to take into account all of these interactions is presented and applied. The simulation tool, based upon the DOE-2 thermal simulation model, a multi-zone airflow network model (COMIS), and an equipment model for the ducts, is used to examine the magnitude of all three interactions. The interaction issues examined include air infiltration/exfiltration magnitude and location, overall thermal exchange when the system is off, and air exchange when the system is operating, with and without internal doors closed. The most surprising result of the analyses presented was that the thermal siphon effect for perfectly sealed ducts was shown to have an impact on the heat exchange between the house and unconditioned spaces that can be more than four times larger than that due to typical duct leakage when the fan is not in operation. This result suggests that this issue merits more careful examination than it has received in the past.
Author :
Publisher :
ISBN 13 :
Total Pages : 622 pages
Book Rating : 4.F/5 ( download)
Download or read book Solar Use Now - a Resource for People written by and published by . This book was released on 1975 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 452 pages
Book Rating : 4.F/5 ( download)
Download or read book NBS Special Publication written by and published by . This book was released on 1968 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Zhaojun Wang
Publisher : Springer Nature
ISBN 13 : 9811395284
Total Pages : 1492 pages
Book Rating : 4.8/5 (113 download)
Download or read book Proceedings of the 11th International Symposium on Heating, Ventilation and Air Conditioning (ISHVAC 2019) written by Zhaojun Wang and published by Springer Nature. This book was released on 2020-03-19 with total page 1492 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents selected papers from the 11th International Symposium on Heating, Ventilation and Air Conditioning (ISHVAC 2019), with a focus on HVAC techniques for improving indoor environment quality and the energy efficiency of heating and cooling systems. Presenting inspiration for implementing more efficient and safer HVAC systems, the book is a valuable resource for academic researchers, engineers in industry, and government regulators.
Author : Sandy Jorens
Publisher :
ISBN 13 : 9789057286841
Total Pages : 133 pages
Book Rating : 4.2/5 (868 download)
Download or read book Design Optimization of Air Distribution Systems in Nonresidential Buildings written by Sandy Jorens and published by . This book was released on 2021 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 88 pages
Book Rating : 4.3/5 (91 download)
Download or read book Building Technology Publications written by and published by . This book was released on 1983 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : J. Paul Guyer
Publisher : Independently Published
ISBN 13 : 9781980497332
Total Pages : 44 pages
Book Rating : 4.4/5 (973 download)
Download or read book An Introduction to Air Distribution System Upgrades for Buildings for Energy Efficiency written by J. Paul Guyer and published by Independently Published. This book was released on 2018-03-07 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication provides introductory technical guidance for mechanical engineers and other professional engineers, construction managers and building managers interested in design and construction of improvements for air distribution systems to improve energy efficiency while maintaining or improving the quality of occupant comfort. Here is what is discussed: 1. OVERVIEW OF AIR DISTRIBUTION SYSTEMS 2. AIR HANDLING SYSTEM TYPES, 3. AIR DISTRIBUTION SYSTEM FANS, 4. FILTERS, 5. INSTALL VARIABLE-SPEED DRIVES, 6. MODIFY CONTROLS, 7. PICK PREMIUM EFFICIENCY MOTORS, 8. USE ENERGY-EFFICIENT BELT DRIVES, 9. CONSIDER A TESTING, ADJUSTING, AND BALANCING CONTRACTOR, 10. SUMMARY, 11. BIBLIOGRAPHY
Author : Charles Nehme
Publisher : Independently Published
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.3/5 (279 download)
Download or read book Air Distribution Technology written by Charles Nehme and published by Independently Published. This book was released on 2024-06-08 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The role of air distribution systems in modern buildings cannot be overstated. As the primary components responsible for delivering conditioned air into residential, commercial, and industrial spaces, air diffusers, registers, and grilles significantly impact indoor air quality, thermal comfort, and energy efficiency. This book is dedicated to exploring these crucial elements of HVAC systems, providing a comprehensive guide for engineers, architects, and HVAC professionals. Scope and Purpose The purpose of this book is to present a detailed analysis and understanding of air diffusers, registers, and grilles, covering their design, selection, installation, and maintenance. By delving into the technical aspects and practical applications, we aim to equip readers with the knowledge necessary to optimize air distribution in various environments. Residential Applications In residential settings, air diffusers, registers, and grilles play a vital role in creating comfortable living conditions. This book examines the unique requirements of residential HVAC systems, including considerations for noise control, aesthetic integration, and space constraints. Detailed case studies and best practice guidelines provide insights into achieving optimal air distribution in homes. Commercial Applications Commercial buildings present distinct challenges due to their diverse usage patterns and occupancy levels. This book addresses the complexities of designing air distribution systems for offices, retail spaces, educational institutions, and healthcare facilities. Emphasis is placed on achieving energy efficiency, indoor air quality, and compliance with building codes and standards. Industrial Applications Industrial environments often have demanding requirements for air distribution due to large spaces, high ceilings, and specific process needs. This book explores the design and implementation of air diffusers, registers, and grilles in manufacturing plants, warehouses, and other industrial facilities. Topics include durability, airflow management, and integration with specialized ventilation systems. Structure of the Book The book is organized into several key sections, each focusing on different aspects of air diffusers, registers, and grilles: Fundamentals of Air Distribution: An introduction to the principles of air movement and distribution, including airflow dynamics, pressure drop, and diffusion patterns. Types and Designs: A comprehensive overview of the various types of air diffusers, registers, and grilles, detailing their construction, materials, and performance characteristics. Selection Criteria: Guidelines for selecting the appropriate air distribution components based on factors such as room size, usage, thermal loads, and acoustic requirements. Installation Practices: Best practices for the proper installation of air diffusers, registers, and grilles to ensure efficient operation and ease of maintenance. Performance Testing and Maintenance: Methods for testing and maintaining air distribution systems to ensure they operate at peak efficiency and provide a healthy indoor environment. Case Studies: Real-world examples and case studies highlighting successful applications of air diffusers, registers, and grilles in residential, commercial, and industrial settings. Conclusion Whether you are a seasoned professional or a newcomer to the field of HVAC, this book aims to be a valuable resource, providing practical knowledge and guidance on air diffusers, registers, and grilles.
Author :
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.3/5 (126 download)
Download or read book Buildings Energy Conservation written by and published by . This book was released on 1986 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
