Greater savings due to efficient
compressed air & blower systems
by Imtiaz Rastgar.
Ahis editorial highlights great
savings made by the users of compressed air systems when users
are able to evaluate and execute the following cost-saving
opportunities and thereby increase their profits significantly.
Compressed Air System
Fix the leaks: The companies should not feel
obliged to raise the barometric pressure by allowing compressed
air to leak from the system. Leaks are costly in terms of the
power consumption and divert compressor capacity to support
waste. An experienced compressed air distributor can help
establish detection and fix process that can facilitate greater
Regulate pressure at point of-use: Applying
pressure in excess of your operations needs causes artificial
demand which is nothing more than a fancy leak. It is
understandable to think higher pressure is better, but all this
really does is cost more when it comes to the electric bill.
The Compressed Air System is Reactive: The
compressors respond to air that has already been removed from
the system. Capacitance, that is, air storage, in the form of
properly sized and placed receivers will smooth the volatility
and allow compressor reaction to be appropriate and less costly
to the demand event.
The compressor system efficiently tracks process
demands: Inefficient turndown, that is, compressor
adjustment to increases and decreases in air demand, means that
one is paying more per unit of compressed air delivery and
needlessly increasing the cost of production.
Proper maintenance preserves efficiency and enhances
reliability: Postponing or neglecting routine
maintenance is an unwise and costly practice.
The compressed air challenge best practices handbook states:
“Excellent maintenance is the key to improved reliability of the
compressed air system; a reduction in energy cost is an
important and measurable by-product.”
The Right Technology: The blower technology has
come a long way, as energy consumption has become more
important. The continued innovation has led to more efficient
technologies to save energy and save money. Gardner Denver
provides various technology styles including bi-lobe, tri-lobe,
twisted tri-lobe and screw technologies. Each technology offers
its own specific advantages. Gardner Denver’s patented 3×5
helical screw rotor design is most efficient positive
displacement blower technology available.
Correct Sizing: In almost all cases, there are
numerous blowers that can perform your application parameters.
While positive displacement blowers have a wide turndown
capability and can maintain good efficiencies throughout, every
positive displacement blower has most efficient settings. It is
key to have an expert properly size a blower for your
application in order to select the most efficient choice
Implementing a VFD: Variable Frequency Drives
can help make an overall blower package more energy efficient by
controlling the speed of the motor, ensuring it runs no faster
than necessary. VFD’s control the speed of the motor which in
turn adjusts the airflow specifically to the air demand needed
for the application, eliminating the need to blow-off air to
atmosphere. No wasted air, no wasted energy.
Committing to proper maintenance schedule: The
proper maintenance preserves efficiency and enhances
reliability. Postponing or neglecting routine maintenance is an
unwise and costly practice. Like an automobile, properly
maintaining a blower package will extend its longevity, saving
you capital expenses for replacement.
Gardner Denver experienced distributor i.e. Rastgar & Co in
Pakistan can guide you through the options available and the
most efficient choice for your applications. For more
information visit our website www.rastgar-co.com