Humidity control in garages and parkings.
Protection of your car
The best way to prevent wet atmospheric corrosion of metal
For several years Swedish Corrosion Institute has been testing and observing cars to identify which bearing parts of the body suffer the most from corrosion.
Tests revealed that the following elements are mostly exposed to corrosion: cross bars, stands, various supports (which are under load) and brackets of springs, wing spars, doors, bottom of the car, niches of headlights, fenders and bumpers.
Almost all major parts of the car are exposed to corrosion!
The main reason for the destruction of the above-mentioned parts of the car is the impact of moisture, which causes atmospheric corrosion.
Development of wet atmospheric corrosion
The wet atmospheric corrosion develops in the presence of a thin layer of moisture on the surface. The thickness of this layer is 100 Å to 1 micron. This layer of moisture starts to develop at the relative humidity of about 50%. At the critical humidity of 60-70%, this moisture starts to condense on the metal surface.
The critical humidity depends on the level of air pollution and the state of metal. The thickness of the moisture layer on metal surface increases. Moisture condensation can be of the following types: capillary, chemical or adsorption condensaion.
Capillary condensation is observed in crevices, gaps, cracks on the metal surface, pores in the film of the corrosion products, under dirt, etc.
Adsorption condensation develops when adsorption forces appear on the surface of metal.
Chemical condensation develops as the result of interaction between corrosion products and atmospheric moisture. It causes development of rust, which retains this moisture.
Corrosion develops quicker if:
- air-temperature in the garage increases;
- level of air-humidity increases;
- there are no air-drying and ventilation systems in the garage.
Corrosion of hydraulic brake system, clutch, and cooling mechanism presents a serious threat to lives of the driver and passengers. These units are closed and, therefore, more susceptible to the development of condensation.
The optimum garage conditions to protect your car from corrosion
- Keep humidity level below 50%. If the air contains dust, and other impurities, humidity level of 50% is too high.
- The optimal cost-effective solution to this problem is the installation of a desiccant dehumidifier to control humidity.
- In this case, the installation of the so-called condensation dehumidifier will not solve the problem completely.
- Firstly, the productivity of this type of dehumidifier is highly dependent on air humidity and temperature and, as practice shows, it is not capable of drying air to the humidity level below 65%.
- Corrosion can be slowed down only at the humidity level below 50%.
- Secondly, condensation dehumidifiers do not work at temperatures below zero.
- Today, a more progressive and practical method is the dessicant method of air-drying.
Reliable method to protect your garage
If the garage is not heated or is heated irregularly, the best solution is to install a desiccant dehumidifier of Desiccant Technologies Group.
Maintaining a low level of humidity in the garage with the help of a heating system is absolutely unfeasible as its maintenance is about 2 times more expensive than humidity control with the help of a desiccant dehumidifier.
Using equipment produced by Desiccant Technologies Group, you will
- protect your car from the harmful effects of moisture;
- prolong the lifespan of the car;
- prolong the lifespan of the garage;
- prevent mildew and unpleasant odors;
- increase the serviceability of buildings and constructions.
Desiccant dehumidifiers of Desiccant Technologies Group will maintain the preset humidity mode at any temperatures.
Desiccant dehumidifiers of DT Group are used
- to dry buildings and facilities after floods;
- to prevent failures of electrical and electronic systems;
- to improve conditions of food storage in basements.
Desiccant dehumidifiers of Desiccant Technologies Group will prolong the serviceability of your car and protect your garage from excessive moisture!
The air which should be dehumidified (process air) goes through the desiccant rotor. Water molecules are adsorbed in a special silicagel rotor.
Desiccant rotor is regenerated by the second air stream preheated to 90-140 °C. Moisture is removed from the premises in the form of warm moist air.
Industrial desiccant dehumidifier DT Group2015-05-27 13:06 author publisher Garages and parking