How do variable speed air compressors work?
A variable-speed drive (VSD) air compressor is an air compressor that takes advantage of variable-speed drive technology. This type of compressor uses a special drive to control the speed (RPM) of the unit, which in turn saves energy compared to a fixed speed equivalent.
The most common form of VSD technology in the air compressor industry is a variable-frequency drive, which converts the incoming AC power to DC and then back to a quasi-sinusoidal AC power using an inverter switching circuit
The benefits of this technology include reduced power cost, reduced power surges (from starting AC motors), and delivering a more constant pressure as the compressor ‘ramps’ up and down to meet the actual system demand, whilst maintaining a preset ‘target pressure’.
Large electrical cost savings can be achieved by installing a variable speed drive compressor in place of an existing rotary screw or piston machine.
However, it is important to note that variable speed drive compressors are not necessarily appropriate for all industrial applications. If a variable speed drive compressor operates continuously at full speed, the switching losses of the frequency converter result in a lower energy efficiency than an otherwise identically sized fixed speed compressor.
Similarly, if a variable speed drive is oversized for the application and spends too much time idling, problems can occur with moisture build up in the oil and excessive oil carryover.
Conducting a compressed air demand audit will reveal the true ‘trends’ in a system and allow compressed air plant to be selected and configured accordingly.
Other types of air compressors
Compressed Air Technology
Compressed air specialists Sydney + Australia
Variable speed air compressor sales
Buying a new air compressor? Do you really understand the compressed air requirements of your plant? Do you know how much air your equipment consumes and at what pressure? Are you aware that the single biggest cost associated with owning and operating an air compressor system will be the electricity costs required to run it?
Over a typical 10 year air compressor life cycle, the cost of energy will account for around 75%-80% of total costs, dwarfing the initial costs associated with equipment purchase, installation and maintenance.
Independent air compressor sales advice
Before you contact the usual air compressor dealers, consider getting your current or proposed new system properly appraised, so that you can be sure you are buying what you actually need as opposed to what you are being sold.
At Compressed Air Technology, we make the effort to actually measure and monitor your system BEFORE you proceed with a high value purchase, ensuring the lifetime ownership costs are kept to a minimum.
As an independent operator, not tied to any particular brand, we have access to a huge range of premium quality equipment that is selected to ensure compressed air is supplied to your plant at the correct volume, pressure and quality, with a heavy focus on reliability.
We also supply a range of piping systems including aluminium, copper, stainless steel, HDPE and many more
Contact us for an obligation free compressed air system assessment on 1300 663 113.
Variable speed air compressor system design
Too often we see the wrong compressors installed for the application. A great deal on a larger compressor may look appealing initially, but seldom does anyone point out the additional electrical costs incurred to run it over the ten or so years it will be in operation.
Our approach tends to differ from that of a traditional compressor dealer, we believe in spending time with our clients to get to know the true compressed air requirements so that the correct equipment can be evaluated and selected accordingly.
We take a similar approach to designing your piping and distribution systems. Remember, a compressed air system is only as efficient as its installation. We often hear clients complain they are ‘running out of air’, when the fact is their compressors are perfectly cable of supplying their processes, but restrictions in piping and poor design are leading to pressure drop and subsequent equipment malfunction.
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Variable speed air compressor system installation
A compressed air system is only as effective as the installation allows it to be. A properly installed compressed air system will deliver a return on investment time after time. Understanding compressed air and its unique characteristics is the key to our success.
Our team of dedicated compressed air installers are true industry specialists. Installing compressed air systems on a daily basis ensures we are kept up to speed with the latest advancement in technologies.
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Variable speed air compressor efficiency audits
Have you considered how much your compressed air system costs to run? Many business owners haven’t and it’s a common misconception that compressed air is free. It’s only air, right? Wrong!
Compressed air is expensive!
Did you know that compressed air is one of the most expensive forms of energy used in industry today?
Often termed the ‘Fourth Utility’, compressed air is just as important to some businesses as electricity, water or gas. It is also very expensive to produce when you consider it takes approximately 7hp of electrical power to produce just 1hp of compressed air power…
10-15% of all industrial electricity is used to general compressed air.
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Variable speed air compressor repairs and leak detection
Did you know that most compressed air systems have leaks? Studies show that system leaks typically account for between 20-50% of compressor output, potentially wasting thousands of dollars every year. Most leaks are quick and easy to fix. Ask us how…
At Compressed Air Technology we offer a range a leakage detection and repair programs to suit all businesses and budgets. Our state of the art Ultra Sonic Leak Detectors and factory trained technicians are used to detect system leaks, and repairs can often be carried out on the spot, generating instant savings.
More information about air compressor repairs and leak detection »
We are Sydney’s leading compressed air specialists
Compressed Air Technology are specialist consultants and contractors for the compressed air industry. Working with industrial compressed air operators to maximise efficiency, reliability and productivity. We design, supply, install, monitor and certify compressed air systems for a wide range of industries Australia wide.
Our independence is the key to our success
Huge increases in the cost of energy has seen the company start to focus on energy management. We are now regularly called upon in a consulting capacity to design compressed air systems that are efficient as well as reliable and safe. Our independence is key to our success, we are not encumbered by the constraints of a typical compressor dealer, we design each system with an open mind and scour the market for equipment that best suits our clients needs.
We use specialist compressed air equipment
The company has invested heavily in specialist instrumentation equipment and the training of personnel to operate and understand measurement and monitoring methods for compressed air and gas systems. Our whole approach sets Compressed Air Technology (CAT Air) apart from the crowd, we believe in what we do, are passionate about compressed air and strive to build long lasting, mutually beneficial relationships with a wide range of clients across a variety of sectors.