To maintain the specific thermal conditions in various industrial processes, an efficient and high-performing heater is required. There are many types of heaters, from large spaces to precise and localized heating. Some of these heaters are designed only for localized heating in intricate spaces, like cartridge heaters, while some need a heating device that can heat large spaces. Air heaters are a special type of heater that can serve both purposes. Industrial air heaters are used in high-scale industrial processes such as heat treatment, drying, curing and various simple-to-complex manufacturing processes. There are several advantages of this type, which is why Air Heater Manufacturers, like Hindon Electricals, are preferred for suitable heating solutions. In this blog, we will discuss about types of air heaters, their advantages and applications.
Types of Industrial Air Heaters
Air heaters are classified based on their construction and applications. The air heaters use convection and radiation for transferring heat. Here is the classification:
1. Duct Heaters
A duct air heater works by heating the air that comes into contact with its heating elements, and distributes the heated air through a fan or blower into a duct of the HVAC system of a building. This is one of the most adaptable heating systems. The tube diameter of the heater may vary as per requirement. It can be used to preheat, reheat the air in HVAC systems. Besides HVAC systems, these are used for the drying process, large ovens, kilns, etc.
2. Tubular Heaters
Tubular heater is a type of duct air heater that uses metal tubes in which resistance wire or coils are contained. The resistance coils generate heat when electricity is passed through them. Stainless steel, copper or INCOLOY are common metal sheaths. These are available in multiple variants by Air Heater Manufacturers, with designs varying in diameter, termination, watt density, etc.
3. Finned Tubular Heaters
Finned tubular heater is the superior design of tubular heaters. The fins enlarge the surface area of the heater, enhancing the heat transfer per unit time. These are an exceptional type of duct air heat with higher watt density, and better wattage tolerances. The material of fins can be aluminium or stainless steel, known for its high thermal conductivity.
4. Porcelain Heaters
Porcelain heaters are specially designed to withstand conditions prone to corrosion and where high temperature is required. Their diameter of the heating element is much higher than duct air heaters. Its applications include chemical heating processes, metallurgical processes, and ovens and furnaces.
5. Ceramic Infrared Heaters
These heaters are known for their high heating efficiency. Using infrared radiation for heating, the ceramic heaters are widely applicable for thermoforming, packaging, paint curing, printing, and drying. These are useful in large as well as micro environment.
Final Words
Air heaters are widely used in industrial heating solutions, known for high heat throughput, consistency and safety. These require low maintenance and have versatile types. Hindon Electricals is one of the reliable Air Heater Manufacturers who provide a large range of these heaters in multiple variants, which vary in sizes, watt density, wattage and other parameters to suit diverse heating needs.