Improving energy efficiency of compressed air BOGE distributer conducts compressed air energy audit at Aqua Leisure Technologies
If a compressed air station isn’t running properly, it will be using more
electricity than needed – and wasting electricity is wasted money. BOGE
distributor Cleveland Compressed Air Services (CCAS) helps users understand
their usage profile enabling them to reduce energy consumption and overall
business costs, solve compressed air problems and improve productivity. A
customised audit at Aqua Leisure Technologies (ALT) now investigated leakage
and provided consistent and accurate results.
Cleveland Compressed Air Services (CCAS) is one of the biggest independent
suppliers of air compressors and service in Western Australia and has been working
as a premium dealer for BOGE Compressors since 2009. For the past 15 years
CCAS has provided quality service and advice to Aqua Leisure Technologies (ALT) –
the largest manufacturer of technologically advanced swimming pools in Australia. In
2015, ALT engaged CCAS to conduct a compressed air energy audit on their existing
system in Welshpool to understand their usage profile, reduce energy consumption
and overall business costs and improve productivity.
A compressed air energy audit is often the first step to reduce operating costs,
improve manufacturing productivity and reduce capital spending. “It is essential to
address all air compressor problems and look at the big picture in order to create a
total solution”, explains CCAS Project Engineer, Syed Abbas. Today’s advanced
energy surveying equipment can audit all areas including generation, treatment,
distribution and process usage. To measure the systems power, output performance
and cost of energy CCAS Project Engineer Abbas used a data logger over a 24-hour
cycle for a typical week. The data revealed that the 75 KW compressor was operating
inefficiently between 35 to 40 percent load at the production levels at the time and
estimated that the additional cost of operating this compressor would be 35,000
dollars per annum in power alone.
Leaks are a significant source of wasted energy in a compressed air system, often
wasting as much as 20 to 30 percent of the compressor’s output. “All compressed air
systems have leaks – even a well-maintained system may leak by as much as 10
percent, but the leak rate of an unmanaged compressed air system can be as much
as 50 percent of the generated output and in certain applications even higher figures
have been measured. An audit can detect each and every leak – even from a long
distance (up to 15 meters) – which is useful in places that are not easily accessible or
visible, optimising your resources and significantly reducing energy losses”, says
CCAS Project Engineer Abbas. A leak test on the ALT compressed air piping system
indicated a leakage rate of 24 l/sec, with the estimated cost of producing this amount
of air is 6,270 dollars per annum.
As result of the audit CCAS recommended the installation of new BOGE equipment
including the frequency controlled BOGE SLF61-3 and S40-3 compressors plus
BOGE DS120 and DS75 refrigerated air dryers as well as BOGE CC oil water
separators all managed with the BOGE airtelligence provis 2.0 central control system.
“The use of system controllers, which control multiple compressors around a single
set pressure, is one of the individual measures that results in the greatest and most
sustainable improvements in efficiency”, knows Mr Abbas, the Cleveland engineer.
Using the actual compressed air consumption, the BOGE airtelligence provis 2.0 for
instance calculates the increased or reduced requirement and automatically selects
the optimal compressor combination. The provision of compressed air based on
consumption means that idle time is virtually completely eliminated. This significantly
increases the energy efficiency of the compressed air station.
By installing the new BOGE equipment the CCAS experts associated Transair pipe
work at their new premises in Jandakot, which would deliver long-term savings and
Great Results for Aqua Leisure Technologies
In May 2015, CCAS installed a new BOGE compressed air system and associated
Transair pipe work at ALT’s new Jandakot premises. To demonstrate the improved
efficiency and longterm savings, CCAS conducted an audit of the new system,
compared to the existing system in Welshpool. Results showed significant control
improvements as well as an annual saving of nearly 54,000 dollars which means ALT
made back the money they invested getting the audit done over 26 times.
Users can find out more about the technical details and options offered by BOGE by