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Duct Design
Steven G. Liescheidt, P.E., CSI-CCS, CCPR.
Overview
Duct design is important in
any HVAC system and must take into account a variety of factors including space,
noise, energy cost and first cost of installations. Deficiencies in duct design
can result in systems that operate incorrectly and are expensive to operate. An
understanding of theory to practice of duct design is important for engineers
who design duct systems.
In this course. the student
will learn about duct design methods and considerations including the theory of
the Bernoulli equation to the practical measurements of fitting loss
coefficients. In addition, the student will gain an understanding of friction
losses, dynamic losses, head and pressure readings and ratings.
The student is expected to
read and review the material contained in the ASHRAE Handbook – 2005
Fundamentals, Chapter 35: Duct Design.
Note that the 2005 ASHRAE Fundamentals Handbook is not provided as part of the purchase
price for this course. It must be obtained separately by the student.
If necessary, this document can be purchased through ASHRAE's online bookstore
at:
http://resourcecenter.ashrae.org/store/ashrae/
or by contacting ASHRAE at:
Phone: 404-636-8400 Address: 1791 Tullie Circle, N.E., Atlanta, GA 30329
The
student must take a multiple-choice quiz consisting of twenty (20) questions at
the end of this course to obtain PDH credits.
Specific Knowledge or Skill Attained
This course teaches the following specific knowledge and
skills related to duct design:
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System analysis
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Friction losses
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Dynamic losses
- Head
and pressure
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Fan-system interface
- Duct
system design considerations
- Duct
design methods
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Fitting loss coefficients
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System effect
Course
This course is based
on the material contained in
the ASHRAE Handbook – 2005
Fundamentals, Chapter 35: Duct Design.
Note that the 2005 ASHRAE Fundamentals Handbook is not provided as part
of the purchase price for this course. It must be obtained separately by the student.
Below is a link to the ASHRAE website where the document can be purchased if you
or a colleague do not own a copy.
ASHRAE's Web Site
To obtain PDH credits for this course, you will need to take a quiz for
credit. Click on the link below.
(To take the quiz,
your web browser must be set to accept cookies. See how to
check your cookie settings.)
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