ASHRAE F21-2009 (SI)

Commercial, industrial, and residential air duct system design must consider (1) space availability, (2) space air diffusion, (3) noise levels, (4) air distribution system (duct and equipment), (5) duct heat gains and losses, (6) balancing, (7) fire and smoke control, (8) initial investment cost, and (9) system operating cost. In this chapter, system design and calculation of a systems frictional and dynamic resistance to airflow are considered. Chapter 18 of the 2008 ASHRAE HandbookHVAC Systems and Equipment examines duct construction and presents construction standards for residential, commercial, and industrial HVAC and exhaust systems.

Chapter Table of Contents

BERNOULLI EQUATION
Head and Pressure
SYSTEM ANALYSIS
Pressure Changes in System
FLUID RESISTANCE
Friction Losses
Dynamic Losses
Ductwork Sectional Losses
FAN/SYSTEM INTERFACE
DUCT SYSTEM DESIGN
Design Considerations
Duct Design Methods
Balancing Dampers
HVAC Duct Design Procedures
Industrial Exhaust System Duct Design
FITTING LOSS COEFFICIENTS

ISBN: 978-1-933742-55-7
ISSN: 1523-7282

Units: SI

Citation: 2009 ASHRAE Handbook -- Fundamentals: Chapter 21, Duct Design



Product Code(s): D-F212009SI