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Report | April 2019

How insulated curtain walls work for humidity control apps

Rapid roll-up doors manufactured by Gandhi Automations (Prime Internal Door) are fast, durable, energy saver and are engineered for all kinds of industrial application.

Most humidity control applications simply involve separating a higher humidity space from a lower humidity space. Examples of humidity control might include preserving a high humidity environment for short term storage of vegetables such as lettuce and spinach or maintaining low humidity for storage of uncoated machine parts or electronics to minimise oxidation (rusting). In both situations, insulated curtain walls are a great solution, but why? The article will look into how insulated curtain walls work for humidity control applications.

Good to understand

Before I explain how insulated curtain walls work for humidity control, you need to understand one thing: humidity and temperature are closely related. A change in the air temperature will cause an automatic change in relative humidity. Therefore, it is important to control temperature when trying to control humidity.

Maintaining low humidity space

Maintaining a low humidity space in the midst of a high humidity environment requires two basic components: an insulated barrier to surround the space and a mechanical chiller to de-humidify, cool, and circulate the air within the space. An insulated barrier is desired so that the exterior surface of the barrier does not become cool enough to drop below the exterior (higher humidity) dew point, causing condensation (moisture) on the exterior of the barrier.

An insulated curtain wall is an excellent choice for this barrier. In addition to the obvious benefits of adaptability, quick installation, and re-configurability, the typically vinyl covered surfaces are inherently water proof, protecting the insulation inside from the effects of condensation. The insulation itself inhibits the transfer of heat away from the outer surface, keeping the outer surface temperature above the dew point of the exterior air so there is no condensation.

Additionally, higher quality insulated curtain walls will use insulating materials treated with an anti-microbial agent to prevent mold or mildew should moisture manage to migrate inside the curtain through a tear or scrape. Finally, the reduced heat transfer across the insulated curtain wall allows the mechanical chilling equipment to operate using less energy.

Maintaining a high humidity space

The principles are the same in the case of maintaining a high humidity space, at least from the barrier standpoint. While a mechanical chiller is not used, some source of moisture is, whether it be misting sprinklers or the addition of high humidity air flow into the space. Once again, the vinyl coated fabric covering the insulation is an effective way to keep the moisture and moist air inside the space, without concerns about mold or mildew on the curtain walls themselves. While inhibiting heat transfer is less important, the insulated curtain wall still plays a role maintaining temperature to reduce temperature (and therefore humidity) fluctuations.

Rapid roll up doors manufactured by Gandhi Automations (Prime Internal Door) are fast, durable, energy saver and are engineered for all kind of industrial application. Rapid doors (internal) are used where a section of the facilities has to be isolated from other section. This simple curtain design of door aids in quick opening and closure of rapid doors and ensure effective protection of the against heat, dust, humidity and temperature.

Gandhi rapid door aids you in meeting your operation’s targets. Save energy, decrease total operational costs, restructure traffic flow and improve logistics. We’ve designed our rapid doors to be safe, dependable and maintenance-free, conferring to all international standards.

The article is authored by Samir Gandhi,Managing Director & Chief Executive Officer, Gandhi Automations Pvt Ltd.

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