Selection Guide for choosing the right Pressure-rated flanged Immersion heater for Your Application

INDUSTRIAL HEATER    Heater Tube    Selection Guide for choosing the right Pressure-rated flanged Immersion heater for Your Application

1 - Determine a Safe and Efficient Element Watt Density

Element Watt Density is the wattage dissipated per square inch of the element sheath surface and is calculated with the following formula:

Watt Density = element wattage
π × element dia. × element heated length

 

For a particular application, element watt density will govern element sheath temperature. Factors to consider when choosing a suitable watt density are:

  1. Many materials are heat sensitive and can decompose or be damaged if the element is running too hot.
  2. Air and other gases that are poor conductors of heat require watt densities matched to the velocity of the gas flow to prevent element overheating
  3. When heating hard water and cleaning solutions mineral deposits can build up on the element sheath, acting as a heat insulator and raising the internal element temperature. If these deposits cannot be periodically removed, use a lower watt density element to increase heater life expectancy.
2020年8月15日 11:59
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