Cooling Electronics Down With Cabinet Coolers

As the summer days have reached maximum temperatures, I find myself busting out my kayak and heading down to the wild whitewater rivers for a weekend full of adventure in the cool water. I personally am not a fan of the heat and as most people enjoy the water and swimming, I partake in the high adventure sport of whitewater kayaking. I’ve been around the sport of whitewater most of my life and have kayaked some of the hardest rivers east of the Mississippi including the well-known rivers of the Upper Gauley, the New River, and the Tallulah.

When the temperature rises and I start to overheat and kayaking is the best way that I enjoy to cool off and enjoy the weekend; splashing around in the wild waves. With plenty of summer heat ahead of us it’s a perfect chance for all to get outside and jump in a lake, swimming pool, or even a river to cool down and take a chance to enjoy a little fun.

Baby Falls on the Tellico River

But what about your electrical cabinets; they deserve to stay nice and cool on the inside as well. All electrical components are not 100% efficient meaning that when an electrical current is flowing through them a certain amount of heat is generated. This phenomenon is commonly referred to as heat loss and VFD’s and other drives are typical offenders. Heat loss is not the only thing that can attribute to electrical cabinets overheating, sun light is another big factor for outside electrical cabinets. Based on the color of a cabinet sitting out in the sun a specific percentage of heat is absorbed into the cabinet; black absorbs the most heat and white absorbs the least. In most cases solar heat can be negated by installing a cover over top of the cabinet to provide shade.

From right to left: Small NEMA 12, Large NEMA 12, Large NEMA 4X

At EXAIR we have designed a cost-effective way to cool down these overheated cabinets during these summer months. EXAIR’s Cabinet Coolers are designed to provide cooling using just a source of compressed air; they utilize our vortex tube to provide a constant source of cold air as long as they are connected to a source of compressed air. Our Cabinet Coolers have also been designed to be used in a large variety of environments ranging from standard production to Classified environments.

NEMA 4 Dual Cabinet Cooler System with ETC

EXAIR also can provide our Electronic Thermostat Control system or ETC for short which can give a user much better control over the temperature inside the cabinet as well as visual feedback of the internal temperature. The ETC allows for easy and constant changing of what internal temperature is desired. The ETC will also provide live temperature readings on the internal temperature of the cabinet.

If you have any questions about compressed air systems or want more information on any of EXAIR’s products, give us a call, we have a team of Application Engineers ready to answer your questions and recommend a solution for your applications.

Cody Biehle
Application Engineer
EXAIR Corporation
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About Vortex Tubes

Vortex tube
Cooling or Heating with the Vortex Tube

If I were to tell you that I can take a supply of ordinary compressed air and drop it’s temperature by 50°F without any type of refrigerant or electrical connection, you might be scratching your head a bit. That is of course unless you’ve been introduced to the wild world of Vortex Tubes. My favorite product among the EXAIR Product Line, the Vortex Tube does just that. With an ordinary supply of compressed air as the sole power source, and no moving parts, the Vortex Tube converts that airstream into a hot and cold flow that exit from opposite ends of the tube. No magic, witchcraft, or wizardry involved here. Just physics!

EXAIR’s Vortex Tubes are a low-cost, reliable, and maintenance-free solution to a variety of industrial spot cooling problems. With just an ordinary supply of compressed air, the Vortex Tube produces two streams of air: one hot and one cold. The Vortex Tube is capable of achieving a temperature drop/rise from your compressed air supply ranging from -50°F to +260°F (-46°C to +127°C). Flow rates range from 1-150 SCFM (28-4,248 SLPM) and cooling capacities of up to 10,200 Btu/hr. With all Vortex Tubes constructed of stainless steel, they’re resistant to corrosion and oxidation ensuring you years of reliable, maintenance-free operation.

VT_Flow

Two primary different styles of Vortex Tubes are offered: maximum refrigeration and maximum cold temperature. Tubes for maximum refrigeration have an “R” type generator installed. These tubes are optimal for most industrial applications. Model numbers containing 32XX all have an “R” generator installed. For “cryogenic” type applications such as cooling lab samples or circuit testing, the maximum cold temperature tubes are recommended. These tubes have a “C” type generator installed. Model numbers beginning with 34XX all are designed for maximum cold temperatures. The difference between the two is in the volume of air at the cold end. While the 34XX tubes deliver a colder temperature, there is much less volume of cold air.

All Vortex Tubes are adjustable. At the hot air exhaust side of the tube is an adjustable valve that controls the amount of air permitted to escape from the tube. The more air that exhausts from the hot end, the colder the temperature drop at the cold end. But, as more air escapes there’s less overall volume. Finding that balance between cold temperature and cold airflow volume is key to a successful application.

As we all know, if there’s a knob to turn, button to press, or adjustment that can be made an operator is inevitably going to tinker with it. Day shift will blame the night shift, night shift blames the day shift, and it can present a problem when the Vortex Tube has been specifically tested and set to achieve the desired cold fraction. If you know the cold fraction you need, but would prefer to prevent it from being able to be adjusted, EXAIR can install a precisely drilled hot plug to set the cold fraction percentage to your specifications and eliminate any potential for it to be changed.

Vortex family

If you’d still prefer to keep the adjustability, but don’t have the capabilities to measure and set it yourself, we can also set any Vortex Tube to the desired cold fraction with the adjustable valve and send it to you ready to be installed. We’ll provide you with a special model number so you can rest assured that any time you need another it’ll come set to your specification.

If you have an application in your facility that you believe is a nice fit for a Vortex Tube, give us a call. Our team of Application Engineers is standing by ready to help you determine the best solution for your application.

Tyler Daniel
Application Engineer
E-mail: TylerDaniel@EXAIR.com
Twitter: @EXAIR_TD

Products Built to Last and Maintenance Free

As an avid outdoors man, I have learned a lot about myself during these days of quarantine and social distancing; mainly I don’t quarantine very well. With all the climbing gyms closed, traveling strongly discouraged, and social distancing in place my  lifestyle has been brought to a grinding halt much like many of us. opening up, which will be good for all of us. 

So, in place I have taken upon myself to learn a new hobby that I can do solo and safely. In the past weeks I have spent learning about mountain biking and all that comes with it. This includes the maintenance required to work on a bike, specifically the front derailleur which controls the front major gear changes (and gets damaged if crashed). Realigning the front derailleur is one of the hardest fixes that one can do on a bike as it has three different adjustments that need to be made at the same time. Thus, I embarked on a week long project of learning how to make the adjustment and man was it frustrating.

Performing tricky maintenance can be one of the most frustrating and stress inducing things when all you really want is for something to work without any hassle. Whether its hours just trying to figure out what the issue is or actually fixing it, let’s be honest, it never goes as planned. The same can be said for maintenance on things such as compressors, cars, and production equipment. Here at EXAIR we strive to eliminate this frustration and hair pulling maintenance and replace it with maintenance free products.

EXAIR’s lines of compressed air products such as our Vortex Tubes, Super Air Amplifiers, and Super Air Knives have no moving parts. No moving parts means no wear down parts and no wear down parts means little to no maintenance. Besides the occasional air filter element change out or something getting lodged inside the product EXAIR’s compressed air products will run almost indefinitely as long as they are supplied with a source of compressed air, typically run through a standard 5 micron filter separator. 

Although you cannot really prevent dirt from collecting in a filter separator (that is, in fact what they are meant to do) you can prevent dirt, dust, and debris from getting into your products by using one of EXAIR’s Filter Separators. Filter Separators remove water condensate, dirt, dust, and debris from your compressed air line before it enters your compressed air product. This prevents the particles from disrupting small air outlets or lodging in the small pathways inside our compressed air products and keeps the product running like new.

All in all, maintenance is not fun to have to deal with and can be costly at times. By using EXAIR’s engineered compressed air products you can eliminate at least one thing to worry about on your list of maintenance that needs to be performed. With a little bit of preventive measures you can keep our products running like new for years and years.

If you have any questions or want more information on any EXAIR’s of our products, give us a call, we have a team of application engineers ready to answer your questions and recommend a solution for your applications.

Cody Biehle
Application Engineer
EXAIR Corporation
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A Cold Winter’s Chill and Vortex Tubes

Two weekends ago I had the pleasure of flying out to meet my friend in Colorado Springs and ski the weekend at Breckenridge. As an avid skier Breckenridge has been one of the resorts I have been wanting to ski since I started skiing out west. The weather was amazing and I couldn’t ask for better; the Saturday blue skies and cool breeze followed up by a Sunday of snow fall. The Trip was a dream come true. Breckenridge is specifically known for having high winds that howl across the peaks that stand at a max of 12,998 ft. above sea level. These chilling winds would freeze just about anyone if you aren’t dressed prepared for them as they blow right in your face on the lift. As I was sitting on the lift with these cold winds blowing in my face it brought to mind EXAIR’s Vortex Tubes, Cold Guns, and Cabinet Coolers.

EXAIR’s Vortex Tubes and similar products provide everything from a cool blast of air to a frigid breeze to cool off various parts and products. In a lot of smaller milling and grinding applications the Cold Gun has been used as a replacement to costly coolant-based alternatives. Vortex tubes have been used in cooling applications since 1945 and assist in everything from stress testing electronics to cooling down plastic parts during ultrasonic welding.

 Vortex tubes use a source of compressed air to create a hot and cold stream of air coming out on opposite ends of the device. This means that not only can the vortex tube be used for cooling but also heating applications. In one case a vortex tube was used to heat up an adhesive before it was sealed to get a better adhesion. Although the vortex tube can be used for heating purposes those applications are few and far between as usually a heating element or other heating source is more applicable.
Vortex tubes are quickly adjustable, just as the winds of Breckenridge can change from being a breeze to almost blowing you off of the mountain. Weather in the mountains is always varying and so are EXAIR’s Vortex Tubes.

If you have any questions or want more information on how we use our vortex tubes to improve processes all over industry. Give us a call, we have a team of application engineers ready to answer your questions and recommend a solution for your applications.

Cody Biehle
Application Engineer
EXAIR Corporation
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