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Tip of the season:

  • Tune your thermostatic equipment when there is a considerable change in working load or set temperature.
    It increases efficiency and saves power.

Factors one should consider while selecting thermal equipment

  • Heat processing applications vary widely from industry to industry. Curing, drying, heat treating, sterilizing and bonding represent just a few of the many uses for ovens and furnaces. To some extent, all ovens and furnaces utilize the same basic principles of thermal transfer. Selection of heat processing equipment is dependent on the type of application. Described here are some of the factors you should consider and be aware of while selecting the equipment for your thermal application.

INDUSTRIAL OVENS, BATCH OVENS AND COMPOSITE OVENS:
THEORY AND CONSIDERATIONS FOR DESIGN

  • Industrial Oven and Batch Oven Process Applications
  • Types of Industrial Ovens
  • Heat Transfer in Industrial Ovens
  • Industrial Ovens and Batch Oven Efficiency
  • Energy Sources for Industrial Ovens and Batch Ovens
  • Air distribution in Industrial Ovens and Batch Ovens
  • Temperature Controllers for Industrial Ovens
  • Safety Feature

Modes of heat transfer in various equipments

  • Heat transfer is a discipline of thermal engineering that concerns the generation, use, conversion, and exchange of thermal energy and heat between physical systems. Heat transfer is classified into various mechanisms, such as heat conduction, convection, thermal radiation. While these mechanisms have distinct characteristics, they often occur simultaneously in the same system.
  • Heat conduction, also called diffusion, is the direct microscopic exchange of kinetic energy of particles through the boundary between two systems in contact. When an object is at a different temperature from another body or its surroundings, heat flows so that the body and the surroundings reach the same temperature, at which point they are in thermal equilibrium. Such spontaneous heat transfer always occurs from a region of high temperature to another region of lower temperature, as required by the second law of thermodynamics.
  • Heat convection occurs when bulk flow of a fluid (gas or liquid) carries heat along with the flow of matter in the fluid. The flow of fluid may be forced by external processes, or sometimes (in gravitational fields) by buoyancy forces caused when thermal energy expands the fluid (for example in a fire plume), thus influencing its own transfer. The latter process is often called "natural convection". All convective processes also move heat partly by diffusion, as well. Another form of convection is forced convection. In this case the fluid is forced to flow by use of a pump, fan or other mechanical means.
  • Radiation: The final major form of heat transfer is by radiation, which occurs in any transparent medium (solid or fluid) but may also even occur across vacuum (as when the Sun heats the Earth). Radiation is the transfer of energy through space by means of electromagnetic waves in much the same way as electromagnetic light waves transfer light.
     

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