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Tackling humidity-related problems

Airborne moisture gives rise to lots of practical difficulties that affect efficiency, costs and control in industrial processes and commercial operations of many different kinds.

We help you eliminate such humidity-related problems, and thereby boost efficiency and roll back operating costs. Cotes dehumidifier solutions help you establish better control of conditions important for your company, your processes or your products.

Cotes adsorption dehumidification technology is extremely versatile and can be used at temperatures anywhere between -30°C and +30°C and at relative humidity levels from 0 to 100%.

Our dehumidifiers enable you to remove the airborne moisture causing the problems, instead of spending large sums just trying to deal with the effects of these problems.

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Humidity problems
The most common problems stemming from airborne moisture and undesirable humidity include:

  • Condensation
  • Corrosion
  • Mould, fungi and bacterial growths
  • Electrical faults
  • Clumping and blockages
  • Seasonal fluctuations in air conditions

Condensation

Condensation arises when air — which almost always contains certain amounts of moisture – has a different temperature than surfaces it comes into contact with, resulting in some of this airborne moisture appearing as condensation.

When the air gets cooler, its relative humidity rises and some of the water vapour present condenses into moisture. The more moisture there is in the air, the more likely that condensation will arise.

This condensation then gives rise to lots of different practical difficulties, pooling on colder surfaces and resulting in lots of knock-on problems that can be both costly and disruptive.

More about tackling condensation

Corrosion

Any combination of airborne moisture and oxygen is a fertile basis for metal corrosion. Iron and steel rust and lose structural integrity, while copper and brass are susceptible to oxidation, affecting the reliability and durability of both electronics and electrical equipment.

Such corrosion can cause serious damage to all kinds of structures, surfaces and equipment, reducing efficiency and shortening service life, as well as pushing up service and maintenance costs.

When relative humidity reaches a level of about 60%, corrosion flourishes. As humidity increases past this point, the rate of corrosion normally increases exponentially.

On the other hand, it is virtually impossible for any normal form of corrosion to occur in clean air with a relative humidity of 45% or less.

More about tackling corrosion

Mould, fungi and bacterial growths

Mould, fungi and bacterial growths of all kinds occur easily in environments where the relative humidity is high – the humidity helps give them the best conditions in which to spread and flourish.

Hygroscopic materials such as timber, plaster and other building materials have a natural tendency to absorb such humidity. This can give rise to many kinds of mould and rot, affecting structural integrity, value, usability and appearance.

Such growths can then result in significant damage to buildings, materials and products. They also represent a significant health risk for any staff, customers, visitors or others present.

Ice formation

When there’s lot of moisture in the air and you have no control over it, it’s really a problem waiting to find somewhere to manifest itself.

In low-temperature surroundings, the airborne moisture easily turns into condensation and then into ice. Ice then builds up on surfaces, fixtures and equipment and becomes a major bugbear in day-to-day operations – often giving rise to both hygiene and safety issues as well as requiring expensive, manpower-intensive remedial measures. Ice also accumulates on evaporators and causes increased energy consumption.

The formation of ice often also means stored goods and their packaging get wet and damaged, resulting in product losses and dissatisfied customers.

Electrical faults

Moisture and electricity are never a good combination. High levels of moisture in the air – humidity – can often result in faults and operating glitches in electrical installations and sensitive electronics, resulting in many kinds of possible damage and interruptions to service.

Such problems normally stem from:

  • Corrosion in components and soldered connections
  • Short-circuits caused by condensation
  • Flashovers and current leakages.

Such problems and glitches impact uptime and operational reliability as well as increasing service/maintenance and repair costs.

Clumping and blockages

Uncontrolled humidity often has significant effects on powders and granulates of all kinds — they have an exceptionally large surface area in contact with the surrounding air.

When that air contains large — and/or uncontrolled — levels of moisture, these powders and granulate have a natural tendency to form lumps and clumps.

This in turn affects quality and can cause serious blockages, downtime and repairs in processing equipment. Resulting hygiene issues can provide fertile breeding grounds for bacteria as well as seriously affecting many kinds of certification and quality approval.

This kind of problem is particularly prevalent in food processing and pharmaceuticals manufacture, but also affects virtually any kind of business in which powders and granulates are involved

Seasonal fluctuations in air conditions

In most parts of the world, there are significant seasonal fluctuations in ambient air conditions.

Over time, climate change is also resulting in increased uncertainty about weather conditions and the specifications of the air inside and around manufacturing facilities, business premises, residential accommodation and leisure venues.

Seasonal fluctuations in humidity result in inconsistent conditions that can in turn have big effects on product quality, energy consumption and profit margins, as well as quality of life.

Unpredictable, fluctuating conditions and lack of control over key operating parameters are never good for business operations.

Wasted energy

Traditional ways of trying to deal with humidity (such as heating and making the water condense, so it can be removed) use considerable amounts of increasingly expensive energy, with irresponsible environmental impacts.

Adsorption dehumidification systems are a much more energy-efficient approach to tackling a broad spectrum of humidity management issues.

 

Ventilation
and heating
aren’t the answer

Lots of people think you can deal with humidity with by opening doors or windows (ventilation) or by turning up the heat. But these are old wives’ tales that actually contradict the basic laws of physics.

Ventilation may indeed replace a certain amount of moisture-laden air with other air from outside, but it doesn’t provide any control over levels of humidity in the replacement air. Air conditions therefore depend almost entirely on whatever state the outside air may happen to be in.

Humidity and temperature are two different – though often inter-connected – parameters. The greater the humidity of a body of air, the greater heat it can contain. So any heating effect is heavily dependent on relative humidity.

Similarly, turning up the heat to compensate for the fact that when humidity levels dip the ambient air feels cooler is an energy-intensive approach that does not actually tackle the real problem of uncontrolled and inappropriate relative humidity.

More about ventilation and heating

Humidity problems
can be controlled

Cotes dehumidifiers enable you to remove the airborne moisture causing the problems listed above, instead of spending large sums trying to deal with the effects of these problems.

If you want to establish full control over humidity conditions in important structures, equipment and processes, Cotes are the people to get in touch with.

We’re experts on what happens when there’s moisture in the air — and how to apply advanced adsorption dehumidification technology to control and manage such humidity effectively.

 

Cotes dehumidifiers enable you to remove the airborne moisture causing the problems listed above, instead of spending large sums trying to deal with the effects of these problems.

If you want to establish full control over humidity conditions in important structures, equipment and processes, Cotes are the people to get in touch with.

We’re experts on what happens when there’s moisture in the air — and how to apply advanced adsorption dehumidification technology to control and manage such humidity effectively.