The Air Dryer heat transfer process occurs in two ways. First, a liquid passes through an air dryer while the air is hot and immediately cools. Then, a second source of heat is provided by the surface being dried. This heat transfer process is made possible by the low heat capacity and poor conductivity of air. Second, a heated air dry process speeds up water diffusion from the interior to the surface of the solid. However, the applicable rise in air temperature should be limited by product quality considerations. Increasing the air temperature can also cause case hardening or a crust to form on the solid's surface.
The air dryer includes a three path heat exchanger. The air passageways are adjacent to the refrigerant and fluid paths. The refrigerant and fluid passageways are separated by a liquid separator 70 and a heat exchanger. These three paths can be paired in a single air dryer or can be stacked together. One of the advantages of the triple-path system is its ability to reduce the amount of heat transfer required.
Stainless steel air dryers are a good choice for applications where hygiene and aggressive media are of utmost importance. Stainless steel finned tubes benefit from state-of-the-art manufacturing techniques. The heat-transfer surface is made of round or elliptical stainless steel tubes that are joined with a laser. A laser-finned tube also offers a long service life. This type of air dryer is ideal for high-tech applications that require a reliable and efficient heat exchange system.
Unlike conventional heating methods, the Radio Frequency Energy used in the Air Dryer heat transfer process can achieve moisture profiling and moisture leveling. This method also reduces the cooling load of a refrigeration cycle. In addition to reducing relative humidity, it improves dryer efficiency and eliminates the need for heating elements. One of the advantages of the Radio Frequency Heating Process is that it eliminates the need for a separate cooling coil.
Refrigerant-type Air Dryers use a refrigerant-filled system to cool compressed air. These dryers generally achieve dew point temperatures of two to three degrees Celsius. The incoming air is heated with a high-quality refrigerant. The heat transfer from the air is very effective in removing moisture. This technology is ideal for many applications. A high-quality Air Dryer is an essential component in any pharmaceutical manufacturing facility.
Despite its simplicity, there is an additional benefit to Membrane Dryers. Membranes contain a desiccant (chemical compound) that has a high affinity for water molecules. The chemical bonds form a chemical bond with water molecules, causing them to evaporate. These Dryers are ideal for the most hazardous environments. They do not require RF shielding and do not use desiccants. These dryers can also be used in a wide range of hazardous environments.
Another common type of Air Dryer is the Coalescing Air Dryer. It functions as a preliminary drying device by removing water droplets from the drying media. Coalescing dryers are often used upstream, downstream of desiccant and membrane dryers. In these cases, water droplets are more of a threat to downstream equipment than water vapor. In such cases, a Heatless Air Dryer is the best solution.