Static Season is Here

Here in Cincinnati we have officially hit static season. Highs in the low 30ies and lows in the teens mean the AC has been turned off and the furnaces are operating at full power. You can tell the air has a bit of a dryness to it. In fact, at home I just switched on the whole home humidifier as my RH was dropping and I was even shocked by a potato I was peeling for Thanksgiving Day mashed potatoes.

Just like our lips and hands can become dry and cracked, the moisture level in the air is also linked to static electricity. Cold air lacks the moisture that warm air contains. As winter temperatures drop, the air becomes drier, leading to a sensation of increased dryness. This moisture in the air is referred to as water vapor. Water vapor helps to dissipate electrical charges. When there’s less of it, your body retains a higher electrical charge. A higher charge results in more significant discharges. Therefore, it’s no surprise that during the winter months, you may experience more frequent static shocks, which can be a bit jarring when you touch a doorknob, your pet, or even, in my case, some potatoes.

Now, of course, you see this in your home life, but it also carries over to every manufacturing facility, as many processes tend to create static, so the dry air will only worsen the issues.

Static tends to propagate.  The more contact, detachment, and friction that occurs, the higher the static charges.  Even when the static is removed from the surface, static charges can still regenerate by the mechanisms above.  So, controlling the static can be determined by the treatment process as well as the location.

Regardless of the nature of the application, if you’ve got a static problem, EXAIR has a solution!

To combat static electricity in your processes, EXAIR manufactures a complete line of Static Eliminators. Any of them are available to ship on the same day from stock to customers in the U.S. with an order placed by 2:00 ET (1:00 ET for same day shipments to Canada). We’re all tired now of receiving extremely long lead times for seemingly everything we try to order. That’s not the case here at EXAIR, if you need a solution and FAST give us a call!

Jordan Shouse
Application Engineer

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The NFL (USA Football) and Static Electricity: What Do They Have in Common?

Just this week we embarked on the dreaded end of summer task of closing our pool. While it isn’t as nice to look at once the winter cover comes on, it sure beats skimming leaves out for an hour every day when the water temperature drops below a comfortable swimming temperature. However, as an avid Cincinnati Bengals fan and love for all things football-related, this time of year also brings with it excitement and optimism as we gear up for another NFL season. Times have been rough for Bengals fans (and all Cincinnati sports for that matter), but things are looking up for us in the football world with the arrival of the newfound hope that comes with a 3-1 record.

So, what do Cincinnati Bengals football and static have in common? Both share the same seasons, fall and winter. This time of the year it is not uncommon to feel a slight shock after walking across a carpeted surface and touching a door knob. This little “jolt” is a result of fast-moving electrons leaping from your body to the door knob, or vice versa. As your feet shuffle across the surface of a rug or carpet, your body will either gain or lose electrons. Touching a conductive surface then causes these electrons to leap from one place to another.

If you notice, this happens to occur much more often during colder winter months. The reason that you experience static shocks more frequently during winter is due to the relative humidity. At colder temperatures, air does not hold as much moisture as it does when it’s warm. Even though you’re heating your house to a similar temperature, the air that is being drawn into your home and heated is still the dry cold air containing less moisture.

The amount of moisture in the air is expressed as relative humidity. This value is given as a percentage of water vapor in the air, compared to how much it could hold at that temperature. In conditions of lower relative humidity, static charges build up much easier. When the relative humidity is high, there’s a higher concentration of water molecules present in the air. These water molecules “coat” the surface of the material, allowing electrons to move more freely and form a layer over the material. This layer of water molecules acts like a lubricant, reducing the forces that cause static to generate. There are many applications that static may only pose an issue once the climate changes. 

Regardless of the nature of the application, if you’ve got a static problem, EXAIR has a solution!

To combat static electricity in your processes, EXAIR manufactures a complete line of Static Eliminators. Any of them are available to ship same day from stock to customers in the U.S. with an order placed by 2:00 ET (1:00 ET for same day shipments to Canada). We’re all tired by now of receiving the extremely long lead times for seemingly everything we try to order. That’s not the case here at EXAIR, if you need a solution and FAST give us a call!

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