Maintenance Technology August 2016 - (Page 42)
FLUID HANDLING
Who
Cares About
Compressed Air?
It's not unusual to find that workers have
little or no awareness of the costs involved in
operating a compressed-air system, and the
impact those costs have on company profits.
Ron Marshall
For the Compressed Air Challenge
COMPRESSED AIR IS ONE of the
most expensive sources of energy in
an industrial facility. Consider the
amount of energy that goes into air
compressors, compared with the
actual useful work returned at the
compressed-air tool or machine.
Training courses on the fundamentals of compressed air include
details on the high cost of producing
this valuable resource for a point of
use. Participants in such classes are
usually amazed when they learn about
the inefficiency of the energy transfer.
The realization that compressed air
isn't free and, in fact, is quite pricey
compared with other forms of energy,
can mark a turning point in the
attitudes of many users-and, for the
health of their companies, they finally
start to care.
Human nature is a funny thing. If
we don't know the cost of something,
it's easy not to care about it-which
results in waste. For example, people
in my Canadian hometown are quite
familiar with effective means for
staying warm in cold weather. Yet, in
the dead of winter, it's not unusual
for us to see wide-open windows in
occupied apartment buildings around
the community. To my eye, this is
a sign of poor temperature control
caused by faulty heating systems.
In an attempt to keep their living
spaces from becoming overheated,
the residents resort to controlling
the temperatures by the brute-force
method of opening windows. After all,
they don't have to pay the heating bill;
the building owner does. In short, it's
evidently easier for these apartment
dwellers to continue wasting heat
than to pick up the phone and call
the building superintendent to fix a
problematic thermostat.
A similar situation persists in
industry when it comes to compressed
air. Those of us who have spent much
of our careers preaching about energy
efficiency continue to see it time and
again: a lack of caring from the plant
floor on up. That can be changed,
though. A good way to do it is to
make people aware that what they are
doing (or not doing) reduces their
sites' profitability, and could ultimately
affect their job security.
Since compressed-air systems typically aren't equipped with electricity
meters, it's easy for users to believe
their compressed-air utility comes at
no charge. This misconception leads
to all types of inappropriate applications, i.e., using compressed air for
cooling, mixing liquids, or cleaning
dust. Proper training for all personnel
is required to drive home the fact that
what users are doing may be costing
the plant a fortune in lost profits.
Installation of permanent powerand flow-measuring instruments on
compressed-air systems is another way
to make operators of this equipment
aware of the actual costs. It also
proves to them the positive effect of
energy-efficiency measures that are
implemented to save costs. Measuring,
in turn, leads to effective management
of a costly resource. These instruments
can then be used to assist a company
in setting up systems such as those
described in the ISO 50001 Energy
Management Standard. MT
For more information on compressed-air topics and related training through the Compressed Air Challenge (CAC),
visit compressedairchallenge.org, or contact Ron Marshall directly at ronm@marshallcac.com.
42 |
MAINTENANCE TECHNOLOGY
AUGUST 2016
http://www.compressedairchallenge.org
Table of Contents for the Digital Edition of Maintenance Technology August 2016
Editorial
Uptime
On The Floor
Accepting The Challenge
Advanced Software In The Jungle
Put Efficiency in MRO Storerooms
Rethink Overall Vibration Monitoring
Reliable Pumping Supplement
Practical Oil Analysis: Why and What For?
SAP Tips and Tricks
Maximize Ethernet
Compressed Air Care
Nurture STEM Learning
Heed Drive-Belt Temps
Internet of Things
ISO 55000
Products
Showcase
Ad Index
Final Thought
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