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The efficiency of an infrared heater is a rating of the total energy consumed by the heater compared to the amount of infrared energy generated. While there will always be some amount of convective heat generated through the process, any introduction of air motion across the heater will reduce its infrared conversion efficiency.
These heaters are often designed such that the frequency of the emitted waves are in the infrared part of the electromagnetic spectrum. The materials used in radiant heaters can vary. Halogen heaters have tungsten filaments in sealed quartz envelopes, mounted in front of a metal reflector in a plastic case. They operate at a higher temperature ...
Halogen lamps are the heating-elements in halogen ovens, infrared heaters and ceramic cooktops. Low wattage halogen lamp arrays are widely used by monitor lizard keepers. Two or three small halogen lamps can produce all the heat needed in an enclosure and are recognized by the animals as sources of heat preventing curious individuals from ...
The development of quartz halogen linear lamps allowed much higher power density up to 200 watts/inch of lamp (8 w/mm), useful for industrial heating, drying and processing applications. [3] By adjusting the voltage applied to incandescent lamps, the spectrum of the radiated energy can be made to reduce visible light and emphasize infrared ...
In the section "Elements of infrared heaters" second paragraph - about electric bulbs - the sentence "Depending on the filament temperature, a filling of the quartz tube with inert gas (e.g., halogen) may be required to prevent filament degradation" needs to be rewritten. There is at least one problem, and perhaps another.
The halogen lamp is turned on and off [5] by a simple thermostat or electronic control and generates waves of infrared light to heat the air within the heating chamber. [2] The fan then circulates this heated air throughout the chamber to evenly cook the contents of the bowl through convective heat transfer, or convection.
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