1st Edition

Air Distribution in Buildings

By Essam E. Khalil Copyright 2014
    268 Pages 172 B/W Illustrations
    by CRC Press

    255 Pages 172 B/W Illustrations
    by CRC Press

    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.

    Air Distribution Systems

    Airflow Patterns

    Airflow Efficiency in Rooms

    Noise Criteria

    Air Handling Units


    Mathematical Modeling Technique

    Governing Equations

    Numerical Procedure


    Airflow Regimes and Thermal Comfort in a Room

    Numerical Model

    Flow Pattern and Thermal Behavior



    Airflow Regimes and Thermal Pattern in Archaeological Monuments

    Historical Background


    Proposed Design Calculation Methodology

    Proposed Solution



    Airflow in Places of Worship

    People and Comfort

    Climatic Factors

    Air Conditioning of Mosques: Ceiling Designs

    Air Conditioning of Churches: Ceiling Designs

    Air Distribution in Mosques: Free-Stand Units



    Airflow Patterns in Healthcare Facilities

    Airflow Characteristics for Comfort

    Early Practice of Airflow Design

    Present Observations

    Problem Analysis

    Modeled Equations

    Flow Pattern Analyses



    Examples of Typical Air Conditioning Projects

    Environmental Control

    Air Filtration

    Pressure Relationships and Ventilation

    Air Movement

    Air Quality

    Smoke Control

    Fire Control

    Noise Criteria

    Factors Affecting System Selection

    HVAC Life Cycle Cost Analyses


    Owning Costs Analysis

    Operating Costs Analysis

    Maintenance Costs Analysis

    Design Specifications

    Further Examples

    Engineering Tips for Energy-Efficient Buildings



    Indoor Environmental Quality


    IEQ Mandatory Provisions

    Thermal Environmental Conditions for Human Occupancy Comfort

    Acoustical Control

    Daylighting by Top Lighting

    Isolation of the Building from Pollutants in Soil

    Prescriptive Option

    Performance Option


    Energy Efficiency in Air-Conditioned Buildings

    Air-Conditioned Applications

    Energy Efficiency

    Evaluation Indices


    International Energy Standards

    Energy-Efficient Buildings

    Concluding Remarks




    Essam E. Khalil is professor of Mechanical Engineering at Cairo University. He has over 43 years of experience in design and simulation of combustion chambers for terrestrial and aerospace applications. He has published over 550 papers in journals and conference proceedings on combustion, energy, and indoor air quality control. He has also published 11 books. Professor Khalil is also a Fellow of ASME, Fellow AIAA, Fellow ASHRAE; Distinguished Lecturer ASHRAE. He is editor of Energy & Buildings, Letters in CFD and, International Journal of Reacting Systems. He has received many international awards, including the ASME George Westinghouse Award recipient 2009, AIAA Energy Systems Award 2010, ASHRAE Distinguished Services Award 2010, AIAA Sustained Services Award 2011, and ASME James Harry Potter Gold Medal Award 2012.