|
Commercial HVAC
A.
Bhatia
Overview
Most
people think the air conditioning system's job is just to cool the spaces.
Actually, a complete air-conditioning system is capable of maintaining
temperature and humidity below or above that of surroundings and provides fresh
air into spaces free of contaminants, dust and odorants.
Air-conditioning systems are bifurcated in two broad categories: comfort air
conditioning and process air-conditioning. Comfort air conditioning refers to
control of spaces to promote the comfort, health, or productivity of the
inhabitants. Process air-conditioning systems are designed to facilitate the
functioning of a production, manufacturing, or operational activity such as
mission critical environments like datacenters, or medical facilities, which
require year-round control of temperature, humidity and air cleanliness, within
the narrow tolerances.
Commercial air-conditioning systems may contain a myriad of components, many of
which are present in one form or other in a variety of configurations. Also
these components may be assembled into systems
literally a dozen or a hundred different ways but in practice these can be
classified into three broad categories: all-air, all-water, and air-processed in
a central air-handling apparatus.
The boundaries between these system types are not absolute, but the choice
largely depends on cost, aesthetics and degree of control.
This 8-hr course provides
the common system arrangements of commercial air-conditioning systems and
discusses the most prevalent system configurations, equipments and control
strategies.
The student must take a
multiple-choice quiz consisting of ten (10) 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:
-
Learn the operating
principles of centralized air, centralized fluid based and decentralized
systems
-
Understand the control
strategies of constant volume and variable air volume systems
-
Learn various
configurations of centralized fluid based systems including fan coil units and
induction units
-
Learn various
arrangements of fresh air delivery to fan coil units
-
Understand the principle
features and applications of split and window systems
-
Identify the components
that make up a commercial air system
-
Understand the different
type of chillers and compressors used in air-conditioning systems
-
Learn the different
types of boilers and efficiency terms used in heating systems
-
Learn to describe the
components and functions of air handling systems
-
Learn the applications
of auxiliary devices such as dampers, terminal units, ductwork, valves and
fittings
-
Learn the different heat
recovery devices and their applications
-
Understand the control
functions, devices and strategies for comfort control and energy efficiency
Course
Click on the link below to view the document
prior to taking a
quiz for PDH credits.
Commercial HVAC (487 KB)
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.)
 
|
|
|
Related Books
Fan
Handbook: Selection, Application, and Design
Hvac
Engineer's Handbook
HVAC
Systems Design Handbook
|
|
