Optimizing Your Current Compressed Air System Is Simple

A few weeks ago, we posted a blog discussing how artificial demand and leaks can lead to poor performance and expensive waste.  Today, I’d like to review how following a few simple steps can help optimize your current compressed air system and reduce compressed air usage.

The first step you want to consider is measuring the air usage in the system. To do this, you want to start at the compressor and check individual leads to each drop point to a blowoff device, record your findings to track the demand. By measuring your compressed air usage, you can locate the source of high usage areas and monitor the usage on each leg of the system. If the demand exceeds the supply, there is potential for problems to arise, such as lowered pressure and force from compressed air operated devices leading to irregular performance.

Digital Flowmeter with wireless capability

EXAIR’s Digital Flowmeters are designed to measure flow continuously and accurately to give you real-time flow measurements of your compressed air system to help identify problems areas.

Step 2 is to locate the source of waste. Again, compressed air leaks can result in a waste of up to 30% of a facility’s compressor output. A compressed air leak detection and repair program can save a facility this wasted air. Implementing such a program can be used as a way for a facility to “find” additional air compressor capacity for new projects. Whenever a leak occurs, it will generate an ultrasonic noise.

Model # 9061 Ultrasonic Leak Detector

Our Ultrasonic Leak Detector is designed to locate the source of ultrasonic sound emissions up to 20’ away. These ultrasonic sound emissions are converted to a range that can be heard by humans. The sound is 32 times lower in frequency than the sound being received, making the inaudible leaks, audible through the included headphones and the LED display gives a visual representation of the leak.

The 3rd step involves finding the source of noisy and wasteful blowoffs, like open pipes or homemade blowoffs, and replacing them with an energy efficient, engineered solution. By replacing these devices, you are not only reducing the amount of waste but also improving operator safety by complying with OSHA safety requirements.

Model # 9104 Digital Sound Level Meter

EXAIR’s Digital Sound Level Meter is an easy to use instrument that measures and monitors the sound level pressure in a wide variety of industrial environments. The source of loud noises can be quickly identified so that corrective measures can be taken to keep sound levels at or below OSHA maximum allowable exposure limits.

The easiest way to reduce compressed air usage and save on operating expense is to turn off the compressed air to a device when it isn’t needed, step 4 in the process. Not only will this save money, in many cases, it can also simplify a process for the operator.

 

Sizes from 1/4″ NPT up to 1-1/4″ NPT are available

A simple manual ball valve and a responsible operator can provide savings at every opportunity to shut down the air flow.

 

120VAC, 240VAC or 24VDC

 

For automated solutions, a solenoid valve can be operated from a machine’s control. For example, if the machine is off, or a conveyor has stopped – close the solenoid valve and save the air.

 

 

Model # 9040 Foot Valve

A foot pedal valve offers a hands free solution to activate an air operated device only when needed, such as being implemented in an operator’s work station.

 

EFC – Electronic Flow Control

For even more control, you can use a device like our EFC or Electronic Flow Control. This helps minimize compressed air usage by incorporating a programmable timing controlled (0.10 seconds to 120 hours) photoelectric sensor to turn off the compressed air supply when there are no parts present. It is suited for NEMA 4 environments and can be easily wired for 100-240VAC.

 

 

Step 5, intermediate storage. Some applications require an intermittent demand for a high volume of compressed air. By installing a receiver tank near the point of high demand, there is an additional supply of compressed air available for a short duration. This will help eliminate fluctuations in pressure and volume.

Model # 9500-60

EXAIR offers a 60 gallon, ASME approved vertical steel tank with mounting feet for easy installation near high demand processes.

Many pneumatic product manufacturers have a certain set of specifications regarding performance at stated input pressures. In many applications, or in the case of using a homemade blowoff device like open pipe, these wouldn’t necessarily require the full rated performance of the device or full line pressure. Controlling the air pressure at the point-of-use device will help to minimize air consumption and waste, step 6.

Pressure Regulators permit easy selection of the operating pressure

By simply installing a pressure regulator on the supply side, you can start off at a low pressure setting and increase the pressure until the desired result is achieved. Not only will this help to conserve energy by only using the amount of air required for the application, it also allows you to fine tune the performance of the point-of-use device to match the application requirements.

If you have any questions, please contact an application engineer at 800-903-9247.

Justin Nicholl
Application Engineer
justinnicholl@exair.com
@EXAIR_JN

 

 

Lost In The Din? Not With An Ultrasonic Leak Detector!

Have you ever found yourself in a noisy environment, trying to hear what someone is saying to you? They could speak up, but sometimes that’s not enough. You might find yourself cupping your hand to your ear…this does two things:

*It blocks a lot of the noise from the environment.  This could also be called “filtering” – more on that in a minute.
*It focuses the sound of the speaker’s voice towards your ear.

IMG_1339
“What? They’re ALL still RIGHT behind me?”

Now, this isn’t a perfect solution, but you’ll likely have much better luck with this in a busy restaurant than, say, at a rock concert. Especially if it’s The Who…those guys are LOUD (vintage loud). If you’re at one of their concerts, whatever your friend has to say can probably wait.

You know what else can be loud?  Industrial workplaces.  Heavy machinery, compressed air leaks, cranes, forklifts, power tools, cranky supervisors/personnel…there are lots of unpleasant but necessary (mostly) sources of sound and noise, right here, where we work.

In the middle of all this, your supervisor might just task you with finding – and eliminating – compressed air leaks…like the person I talked to on the phone this morning.  This is where our Ultrasonic Leak Detector comes in: in places with high noise levels, it could be difficult (if not downright impossible) to hear air leaks.

Most of that noise from the machinery, cranes, etc., is in the “audible” range, which simply means that it’s of a frequency that our ears can pick up.  In a quiet room, you could likely hear an air leak…all but the very smallest ones will make a certain amount of noise…but when a compressed fluid makes its way out of a tortuous path to atmospheric pressure, gets turbulent, and creates an ultrasonic sound it is a frequency that our ears CAN’T pick up on.

Not only does the Ultrasonic Leak Detector pick up on this ultrasonic sound, it can also block (or “filter”) the audible sound out.  It comes with a parabola and a tubular extension so you can hone right in on the area, and then the exact location, of the leak.

If you’d like to find out more about compressed air leak detection, how much you might be able to save by fixing leaks, or how this could make your supervisor a bit less cranky (no guarantees on that last one,) give us a call.

Russ Bowman
Application Engineer
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IMG_1339 courtesy of Rich Hanley  Creative Commons License

Being Prepared

My sons went skiing with their Boy Scout troop this past weekend. It was the first time my youngest, who turns 12 next month, had been skiing, and he had a blast on the beginner’s slope and the tubing lanes. His 14 year old brother, however, is a grizzled veteran, having hit the slopes three whole times over the past three years. He’s quite athletic, though – this stuff just comes natural to him – so he and his friends spent most of their time on the “difficult” (marked by a blue square on the map) and “advanced intermediate” (blue square with a black diamond) courses. I don’t know much about skiing, but I do know that any slope represented with a black diamond is one that I do NOT belong on.

I mentioned his athleticism – right now, he’s in the middle of basketball season, his baseball team’s prospective pitchers and catchers are working out, and right after winter break, his football team began off-season weight training after school, three days a week. In the midst of all this, he still managed to find some muscles to get sore while skiing. Not as many as some of the other Scouts, though, considering the comments I heard at last night’s Troop meeting. They are all, however, looking forward to next year’s trip.

I tell you this, dear reader, because:
1. It reminded me of a conversation I once had with a customer, and,
2. It’s been a while since I wrote anything about Boy Scouts.

Now that #2 is out of my system, the customer wanted to discuss our Ultrasonic Leak Detector. He had recently purchased a Super Air Knife, and its performance made him think of where else he might be able to make improvements in his compressed air system. Since he had flow meters in place already (see The Six Steps To Optimizing Your Compressed Air System,) he turned to leak detection & repair. In other words, he wanted to find out where his system, much like my son’s hip & lateral abdominal muscles, was vulnerable.  Now that he’s finding out if he has any leaks to fix, he can move on to the next step of upgrading their operations with engineered compressed air products.

ultrasonic_2

And now that my son knows, very specifically and unforgettably, which muscle groups he needs to work on before the next ski trip, I hope he’ll consider some advance preparation next time. Even more than that, I hope that I’ll actually be able to join them then.

Russ Bowman
Application Engineer
russbowman@exair.com
Twitter: @EXAIR_RB

Holey Leaky Air System Batman! I mean Prof. Penurious!

Well weekly blog readers, it is now time for poll two of six in our effort to see how many of our readers can benefit from our 6 Steps to Optimizing Your Compressed Air System.   If you noticed the results from last week’s blog, quite a few of our readers could benefit from our Digital Flowmeter and Summing Remote Display to get them on the path to an optimized compressed air system.  Now it’s time to see how many of our blog readers can say they run a tight air system.    So now for the poll.

Step 2 in our process is to find and fix the leaks in your compressed air system.   If you do a quick search on the all mighty Interwebs for “compressed air leaks”, you will find numerous articles on the matter.  This link will take you to an article from the Department of Energy that will help you get an idea of the average cost savings that you would see if you were to fix the leaks in your system.  From simply fixing 10 leaks in one compressed air system a company could save $57,069.  That is a lot of dough, not to mention this was from only 10 leaks in a system.  Every time you have a joint or connection in a system there is a possibility for a leak.   The size of the leak will determine how much money you are losing to it.  The best way to handle the leaks is to find them and permanently eliminate them.
The leak detection can be done in many ways; the method we offer is with the use of our Ultrasonic Leak Detector.  The ULD can detect leaks up to 20’ away and is also accurate even in a noisy industrial environment.   If you fix just one 1/16” diameter or equivalent leak, you will pay for the ULD in a year.  Not to mention the number of other leaks it will allow you to find and repair.  The amount of air you save by fixing the leaks will also be measured easily if, you are using our Digital Flowmeter from the previous blog

Once again, it is time for the blog to end.  Don’t forget to chime in on the poll and check back next week for step three in our blog series.
If you would like to discuss any of the information in today’s blog please do not hesitate to contact us.

Brian Farno
Application Engineer
BrianFarno@EXAIR.com
Twitter: EXAIR_BF