The Basics Of Process Heating Systems

The process of heating is the practice of employing heat in an industrial environment to obtain material conversion during the production of products that is older than you may consider. Today process heating comes into use in several energy-related, manufacturing, and science-based and process industries, with precise sub-processes of process heating figuring more than a dozen. There are many various types of process heating systems. All have different features that a property inspector can classify and explain the type of heating system being inspected.

What is process heating systems?

Process heating systems such as ovens, furnaces, dryers, kilns and heaters, utilize thermal energy to mould materials like metal, plastic, and ceramics into various industrial and consumer products by melting, drying, and treating heat curing, smelting, and other operations. Various these systems are develop technologies utilizing ubiquitously completely in the producing/manufacturing sector. The heat-conveying medium is what transfers the heat from the origin to the enclosure. The fuel utilized is a differentiating feature of a heating system. Electricity can consider energy, but it can likewise be a heat-conveying channel. The character of the heat is also a differentiating attribute. Can use the capacity and efficiency of the heating system to differentiate one heating system from another. 

Most common types of process heating systems

fuel-based heating

In a fuel-based process heating system, heat production is through liquid, solid, and gaseous fuel combustion and is transferred indirectly or directly to the substance. The combustion gases can be in immediate contact with the heating element or separated, distributed from the indirect heating element by radiant burner tube, retort, muffle, etc.

Electric-based heating

Electric-based process heating is often known as electrotechnology. Use Electromagnetic waves or electric currents to heat materials. Generate direct heating within the workplace by following ways 

  1. Passing an electric current through materials.
  2. Effecting an electrical current (an eddy current) within the material.
  3. Exciting atoms and/or molecules within the material with electromagnetic fields like radiofrequency or microwave.

This is a process in which electric power is converted to heat. Typical applications include industrial processes. An electric industrial heater is, therefore, a mechanism that converts electrical power into heat. Electric heaters include electric resistors, which act as a heating elements. 

Representatives of electric-based process heating technologies include infrared emitters, electric arc furnaces, microwave processing, induction heating, laser heating, radio frequency drying, etc.

Steam-based heating

Steam-based heating systems provide midpoints of heating by both immediate or indirect applicability of steam. Alike to fuel-based direct and indirect techniques, the steam is either introduced directly to the process for heating purposes or indirectly in association with the process by a heat shift mechanism. Considering steam heating is significant for the amount of energy used in lower temperature industrial heating of more significant than 400℉. Steam-based systems are essential for industries where heat equip is at or beneath 400℉ and where there is the obtainability of low-cost fuel or by-products for application in steam formation. The use of cogeneration is a different example where steam-based heating systems are commonly in use. 

Hybrid process heating 

Hybrid process heating systems utilize heating technologies based on diverse energy sources or heating systems to optimize their power use and improve overall process thermic efficiency. For example 

  1. Hybrid boiler systems coupling a fuel-based boiler by an electric-based boiler employing off-peak electricity are sometimes used in lower-cost electricity areas. 
  2. Combining penetrating electromagnetic energy and convective hot air can yield accelerated drying processes by selectively targeting moisture with the penetrating EM energy, yielding far greater efficiency and product quality than drying processes based exclusively on convection, which can be rate bounded by the thermic conductivity of the material.