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Download or read book Air Distribution in Rooms: Ventilation strategies. System efficiency. Applications written by and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Y. Chartier
Publisher : World Health Organization
ISBN 13 : 9241547855
Total Pages : 132 pages
Book Rating : 4.2/5 (415 download)
Download or read book Natural Ventilation for Infection Control in Health-care Settings written by Y. Chartier and published by World Health Organization. This book was released on 2009 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: This guideline defines ventilation and then natural ventilation. It explores the design requirements for natural ventilation in the context of infection control, describing the basic principles of design, construction, operation and maintenance for an effective natural ventilation system to control infection in health-care settings.
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 : Marco Maroni
Publisher : Elsevier
ISBN 13 : 9789999904803
Total Pages : 562 pages
Book Rating : 4.9/5 (48 download)
Download or read book AIR DISTRUBUTION IN ROOMS Ventilation for Health and Sustainable Enviorment Volume II written by Marco Maroni and published by Elsevier. This book was released on with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Setareh Janbakhsh
Publisher : Linköping University Electronic Press
ISBN 13 : 917519063X
Total Pages : 96 pages
Book Rating : 4.1/5 (751 download)
Download or read book A Ventilation Strategy Based on Confluent Jets written by Setareh Janbakhsh and published by Linköping University Electronic Press. This book was released on 2015-04-27 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study presents air distribution systems that are based on confluent jets; this system can be of interest for the establishment of indoor environments, to fulfill the goals of indoor climate and energy-efficient usage. The main objective of this study is to provide deeper understanding of the flow field development of a supply device that is designed based on wall confluent jets and to investigate the ventilation performance by experimental and numerical methods. In this study, the supply device can be described as an array of round jets on a flat surface attached to a side wall. Multiple round jets that issue from supply device apertures are combined at a certain distance downstream from the device and behave as a united jet or so-called confluent jets. Multiple round jets that are generated from the supply device move downward and are attached to the wall at the primary region, due to the Coanda effect, and then they become wall confluent jets until the floor wall is reached. A wall jet in a secondary region is formed along the floor after the stagnation region. The characteristics of the flow field and the ventilation performance of conventional wall confluent jets and modified wall confluent jets supply devices are investigated experimentally in an office test room. The study of the modified wall confluent jets is intended to improve the efficiency of the conventional one while maintaining acceptable thermal comfort in an office environment. The results show that the modified wall confluent jets supply device can provide acceptable thermal comfort for the occupant with lower airflow rate compared to the conventional wall confluent jets supply device. Numerical predictions using three turbulence models (renormalization group (RNG k– ?), realizable (Re k– ?), and shear stress transport (SST k– ?) are evaluated by measurement results. The computational box and nozzle plate models are used to model the inlet boundary conditions of the nozzle device. In the isothermal study, the wall confluent jets in the primary region and the wall jet in the secondary region, when predicted by the three turbulence models, are in good agreement with the measurements. The non-isothermal validation studies show that the SST k– ? model is slightly better at predicting the wall confluent jets than the other two models. The SST k– ? model is used to investigate the effects of the nozzle diameter, number of nozzles, nozzle array configuration, and inlet discharge height on the ventilation performance of the proposed wall confluent jets supply device. The nozzle diameter and number of nozzles play important roles in determining the airflow pattern, temperature field, and draught distribution. Increased temperature stratification and less draught distribution are achieved by increasing the nozzle diameter and number of nozzles. The supply device with smaller nozzle diameters and fewer nozzles yields rather uniform temperature distribution due to the dominant effect of mixing. The flow behavior is nearly independent of the inlet discharge height for the studied range. The proposed wall confluent jets supply device is compared with a mixing supply device, impinging supply device and displacement supply device. The results show that the proposed wall confluent jets supply device has the combined behavior of both mixing and stratification principles. The proposed wall confluent jets supply device provides better overall ventilation performance than the mixing and displacement supply devices used in this study. This study covers also another application of confluent jets that is based on impinging technology. The supply device under consideration has an array of round jets on a curve. Multiple jets issue from the supply device aperture, in which the supply device is positioned vertically and the jets are directed against a target wall. The flow behavior and ventilation performance of the impinging confluent jets supply device is studied experimentally in an industrial premise. The results show that the impinging confluent jets supply device maintains acceptable thermal comfort in the occupied zone by creating well-distributed airflow during cold and hot seasons.
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 : Howard D. Goodfellow
Publisher : Academic Press
ISBN 13 : 0128167793
Total Pages : 745 pages
Book Rating : 4.1/5 (281 download)
Download or read book Industrial Ventilation Design Guidebook written by Howard D. Goodfellow and published by Academic Press. This book was released on 2021-06-04 with total page 745 pages. Available in PDF, EPUB and Kindle. Book excerpt: Industrial Ventilation Design Guidebook, Volume 2: Engineering Design and Applications brings together researchers, engineers (both design and plants), and scientists to develop a fundamental scientific understanding of ventilation to help engineers implement state-of-the-art ventilation and contaminant control technology. Now in two volumes, this reference contains extensive revisions and updates as well as a unique section on best practices for the following industrial sectors: Automotive; Cement; Biomass Gasifiers; Advanced Manufacturing; Industrial 4.0); Non-ferrous Smelters; Lime Kilns; Pulp and Paper; Semiconductor Industry; Steelmaking; Mining. Brings together global researchers and engineers to solve complex ventilation and contaminant control problems using state-of-the-art design equations Includes an expanded section on modeling and its practical applications based on recent advances in research Features a new chapter on best practices for specific industrial sectors
Author : Fred S. Bauman
Publisher : Bibliotheca Press
ISBN 13 :
Total Pages : 260 pages
Book Rating : 4.0/5 ( download)
Download or read book Underfloor Air Distribution (UFAD) Design Guide written by Fred S. Bauman and published by Bibliotheca Press. This book was released on 2003 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: This guide is ideal for HVAC design engineers, architects, building owners, facility managers, equipment manufacturers and installers, utility engineers, researchers, and other users of underfloor air distribution (UFAD) technology. UFAD systems are innovative methods for delivering space conditioning in offices and other commercial buildings. Improved Thermal Comfort, Improved Ventilation Efficiency and Indoor Air Quality, Reduced Energy Use and Reduced Life-Cycle Building Costs -- The guide explains these as some of the advantages that UFAD systems have over traditional overhead air distribution systems. This guide provides assistance in the design of UFAD systems that are energy efficient, intelligently operated, and effective in their performance. It also describes important research results that support current thinking on UFAD design and includes an extensive annotated bibliography for those seeking additional detailed information.
Author : Martin W. Liddament
Publisher :
ISBN 13 : 9780946075850
Total Pages : 254 pages
Book Rating : 4.0/5 (758 download)
Download or read book A Guide to Energy Efficient Ventilation written by Martin W. Liddament and published by . This book was released on 1996 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : P. V. Nielsen
Publisher :
ISBN 13 :
Total Pages : 21 pages
Book Rating : 4.:/5 (474 download)
Download or read book Air Distribution Systems - Room Air Movement and Ventilation Effectiveness written by P. V. Nielsen and published by . This book was released on 1992 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Essam E. Khalil
Publisher : CRC Press
ISBN 13 : 1466594632
Total Pages : 270 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 270 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 in-depth coverage of air distribution technology. The text brings together a wide range of information and offers technical guidance on the design, calculation, and efficient operation of air distribution in buildings. The text highlights the special characteristics of air distribution in individual spaces. It presents the basic and fundamental concepts of air distribution as it relates to grilles and outlets, room space, and buildings. It focuses on air distribution systems in large buildings, starting with simple rooms and then moving on to more complex configurations. It also sums up the latest standards and best practices in air conditioning engineering. Includes knowledge of the new trends in buildings’ air distribution Provides systematic analyses of the air flow regimes, heat transfer, and relative humidity in a collection of special built environments Presents energy analyses of the air conditioning systems for operating theaters and sporting facilities in unusual and severe climatic conditions Offers a description of flow characteristics in archeological monuments with emphasis on combating excessive moisture Introduces examples of very dense occupancy built environments, moisture sensitive environments, and open space air conditioning Details advanced treatment of flow characterization in large public buildings This text serves as an ideal resource for air conditioning engineers, contractors, and consultants. It also benefits mechanical and architectural engineering students.
Author : Hazim B. Awbi
Publisher : Taylor & Francis
ISBN 13 : 0415270561
Total Pages : 535 pages
Book Rating : 4.4/5 (152 download)
Download or read book Ventilation of Buildings written by Hazim B. Awbi and published by Taylor & Francis. This book was released on 2003 with total page 535 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hazim Awbi's Ventilation of Buildings has become established as the main text on the subject. This revised new edition builds on the basic principles and draws in the results of considerable new research in the field. A new chapter on natural ventilation is added. Recent developments in ventilation concepts and room air distribution are also included. The text is intended for the practitioner in the building services industry or the architect, the postgraduate student undertaking courses or research in HVAC, building services engineering, or building environmental engineering, and the undergraduate studying building services as a major subject. The book is both a presentation of the practical issues that are needed for modern ventilation system design and a survey of recent developments in the subject.
Author : Rodger Edwards
Publisher : Routledge
ISBN 13 : 1136400109
Total Pages : 271 pages
Book Rating : 4.1/5 (364 download)
Download or read book Handbook of Domestic Ventilation written by Rodger Edwards and published by Routledge. This book was released on 2006-08-11 with total page 271 pages. Available in PDF, EPUB and Kindle. Book excerpt: A series of studies of homes in England show that around 15% - or some 3 million homes - suffer problems with damp and mould, largely because of poor ventilation. The impact on public health and quality of life is substantial. The Handbook of Domestic Ventilation is a comprehensive study of the basic science, technology and practical application of effective and energy efficient ventilation strategies for dwellings. Unlike other books, the Handbook concentrates on a domestic context rather than looking solely at commercial applications, giving a much needed insight into the requirements of ventilation for the home. Basing his conclusions on both theoretical study and practical experience, Rodger Edwards demonstrates the clear link between poor ventilation and poor health, and tells the reader how to use good quality ventilation as a way of enhancing quality of life and as a health improvement tool.
Author : Howard D. Goodfellow
Publisher : Academic Press
ISBN 13 : 0128167815
Total Pages : 581 pages
Book Rating : 4.1/5 (281 download)
Download or read book Industrial Ventilation Design Guidebook: Volume 1 written by Howard D. Goodfellow and published by Academic Press. This book was released on 2020-07-24 with total page 581 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fully revised and restructured two-volume 2nd edition of the Industrial Ventilation Design Guidebook develops a systematic approach to the engineering design of industrial ventilation systems and provides engineers guidance on how to implement this state-of-the-art ventilation technology on a global basis.Volume 1: Fundamentals features the latest research technology in the broad field of ventilation for contaminant control including extensive updates of the foundational chapters from the previous edition.With major contributions by experts from Asia, Europe and North America in the global industrial ventilation field, this new edition is a valuable reference for consulting engineers working in the design of air pollution and sustainability for their industrial clients (processing and manufacturing), as well as mechanical, process and plant engineers looking for design methodologies and advice on sensors and control algorithms for specific industrial operations so they can meet challenging targets in the low carbon economy. Presents practical designs for different types of industrial systems including descriptions and new designs for ducted systems Discusses the basic processes of air and containment movements such as jets, plumes, and boundary flows inside ventilated spaces Introduces the new concept of target levels in the systematic design methodology such as assessing target levels for key parameters of industrial air technology and the hierarchy of different target levels Provides future directions and opportunities in the industrial design field
Author : Charles Nehme
Publisher : Charles Nehme
ISBN 13 :
Total Pages : 42 pages
Book Rating : 4./5 ( download)
Download or read book Ventilation Solutions: Improving Indoor Air Quality written by Charles Nehme and published by Charles Nehme. This book was released on with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ventilation is an indispensable aspect of our built environment, yet it often operates quietly in the background, unseen and unheard. It is the invisible force that breathes life into our homes, workplaces, and public spaces, influencing our health, comfort, and overall well-being. The quality of the air we breathe indoors profoundly affects our lives, from our ability to concentrate and be productive to our susceptibility to illnesses and allergies. This book delves into the world of ventilation, unveiling its significance, principles, and applications across diverse settings. Whether you are a homeowner seeking to enhance indoor air quality, an architect striving to create sustainable buildings, or an engineer working on cutting-edge ventilation technologies, this book is a comprehensive guide to understanding, implementing, and optimizing ventilation systems. Ventilation is not a static field; it evolves in response to advancing technologies, changing environmental concerns, and the pursuit of healthier, more efficient indoor environments. In each chapter, we explore different facets of ventilation, from its role in mitigating the spread of respiratory diseases like COVID-19 to its pivotal role in green building practices aimed at reducing our carbon footprint. As we navigate the intricate world of ventilation, we emphasize best practices, emerging trends, and innovative solutions that are shaping the future of indoor environments. Whether you are seeking practical advice for improving ventilation in your home, insights into sustainable building design, or a glimpse into the technologies that will revolutionize the field, this book equips you with the knowledge to make informed decisions and contribute to creating spaces that prioritize health, comfort, and environmental responsibility. In our exploration of ventilation, we aim to illuminate the importance of this often-overlooked aspect of our daily lives. By understanding its principles and embracing best practices, we can breathe easier, work more productively, and live healthier lives in the spaces we call home, work, and play. We invite you to embark on this journey through the world of ventilation, and we hope you find the insights and knowledge within these pages both enlightening and empowering. Sincerely, Charles nehme
Download or read book Air Distribution Effectiveness for Residential Mechanical Ventilation written by and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of ventilation is to dilute indoor contaminants that an occupant is exposed to. Even when providing the same nominal rate of outdoor air, different ventilation systems may distribute air in different ways, affecting occupants' exposure to household contaminants. Exposure ultimately depends on the home being considered, on source disposition and strength, on occupants' behavior, on the ventilation strategy, and on operation of forced air heating and cooling systems. In any multi-zone environment dilution rates and source strengths may be different in every zone and change in time, resulting in exposure being tied to occupancy patterns. This paper will report on simulations that compare ventilation systems by assessing their impact on exposure by examining common house geometries, contaminant generation profiles, and occupancy scenarios. These simulations take into account the unsteady, occupancy-tied aspect of ventilation such as bathroom and kitchen exhaust fans. As most US homes have central HVAC systems, the simulation results will be used to make appropriate recommendations and adjustments for distribution and mixing to residential ventilation standards such as ASHRAE Standard 62.2. This paper will report on work being done to model multizone airflow systems that are unsteady and elaborate the concept of distribution matrix. It will examine several metrics for evaluating the effect of air distribution on exposure to pollutants, based on previous work by Sherman et al. (2006).
Author : Angui Li
Publisher : Springer Nature
ISBN 13 : 9811992592
Total Pages : 204 pages
Book Rating : 4.8/5 (119 download)
Download or read book Attachment Ventilation Theory written by Angui Li and published by Springer Nature. This book was released on 2023-05-02 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book systematically summarizes the current research progress of attachment ventilation, covering vertical wall attachment, column attachment, and adaptive attachment ventilation. Attachment ventilation is a high-performance ventilation mode that was first proposed by the author, Prof. Angui Li 20 years ago. Now it has been widely used in office spaces, subway stations, high-speed railway stations, international airport terminals, and other large spaces. This book introduces attachment ventilation in detail to eliminate the cooling/heating load of the occupied zone and provide an expected environment for the air-conditioned zone. Attachment ventilation combines the advantages of traditional mixed ventilation and displacement ventilation. This book consists of six chapters, covering a series of airflow patterns, mechanisms, parameter correlations, and attachment ventilation design methods. It is helpful for HVAC engineers to design attachment ventilation effectively.
