A humidity chamber is an instrument having a mechanism that examines the reaction of products when exposed to varying humidity. This is done so there could be improvements in the quality of the product. For checking the quality of products industries like rubber, pharmaceutical, plastic, etc. make use of these chambers.
Can you create accurate humidity levels without the control of temperature?
It is not an easy task to control the chamber’s humidity with exactness and repeatability without being able to control the machine’s temperature. Assuming the client needs a humid or dry climate, the temperature controller not being used can influence the relative humidity’s precision.
The relative humidity is the ratio of the measure of humidity noticeable in the air as to the actual dampness it can hold. At a specific temperature, more moisture capacity can be held by the air if the chamber’s temperature is higher. A steady temperature assists with guaranteeing an accurate relative humidity level. It implies that overall relative humidity changes as per the temperature changes.
For generating moisture, a lot of methods can be followed so that the levels of humidity in chambers for testing can be controlled.
Generation of humidity methods that you can follow:
First Method of the Atomizer:
The basic use of atomizers is to offer a lot of pros as well as produce a significant degree of humidity. All the atomizers involve a fine nozzle for spraying to atomize the water. This takes place in the mixing assembly. The moment the atomized water goes through the heater of the chamber, it gets warmed immediately.
Pros of atomizers:
• Power saving can be done
• Atomizers are very easy to use.
• It is gainful at whatever point required and does cooling of the air.
• Warmer wear out has no troubles
• High volumes of moisture can be produced
Second Method, the generator of steam:
The machines of tank-type that come with immersion heaters are known as steam generators. The work of the chambers is to look over the heater’s output and relative humidity’s demands. At the top of the chamber, there is the presence of heaters and cooling coils. When the water of the chamber gets heated up there is a generation of steam inside it that moves upwards.
Pros of steam generators:
• Moisture’s high volume generation in the big chambers.
• Consistent quality of water vapors.
Third Method of Water bath:
In this method, a mixing assembly that holds the cooling as well as heating coils, a small water bath is fixed. In the mixing assembly when the air is drawn in and moves, it collects the vapors as it goes over the water bed that is fixed there. The system of Water Bath resembles with working of the steam generators for the generation of humidity without being enclosed in a box.
Pros of fitting water bath in chambers:
• Cleaning is quick
• For creating moisture boiling is not necessary.
• Inspection is done quickly
• Not much maintenance is needed as there is less deposition of minerals in the chamber because of less boiling.
• Since a modest quantity of water is available it is responsive.
How can you determine the effect on products due to humidity with humidity chambers?
Humidity chambers determine the effect on various chemical, mechanical and physical characteristics of products due to different weather conditions when the product does its work. For creating different temperatures and relative humidity, the use of temperature/Humidity Chambers along with the latest technology is done. For maintaining appropriate temperature and humidity, these chambers have a compressor for cooling and heating. These chambers have insulation of imported glass wool with a high quality that reduces the ratio of heat loss.
Is it necessary to use humidity chambers?
To decide the working of the parts in extreme environments and test conditions, things like humidity and temperature testing are taken into consideration. These components are tested in fluctuating types of climate, extreme temperatures, and changing humidity. Tests like these are also possible in a static state during consistent humidity and temperature. In places where usage of moisture is done to induce a component’s failure then a test in a dynamic state can be done.
Where can Humidity Chambers be used?
Humidity Chambers can be used in various industries like:
1. Industries for Rubber – For melting rubbers in environments that are hot and cold and for the determination of the crack initiation.
2. Industries for Plastic - To determine how the physical and mechanical properties of products of plastic get affected in environments that are hot and humid.
3. Pharmaceutical Industries – For testing the effect on drugs and medicines used in pharmaceutics due to a highly humid environment.