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What are infrared rays

All bodies emit energy in the form of Electromagnetic Radiation. This radiation, which moves at the speed of light (300,000 km / sec.), have the distinction to heat any object on which it infringes.

 

These thermal properties, however, are manifested in a more sensitive way with infrared radiation, which are called thermal radiation.

 

As with the radio waves, infrared, are invisible to the human eye and can be divided into short-wave radiation, medium and long.

This division is a function of temperature: an object at a low temperature emits long-wave rays, the same body at higher emits short-wave ray temperature.

 

The energy transfer in the two cases is, as you can understand, very different, a short-range has a higher intensity of a long and vice versa; but the big difference is evident as regards the capacity for reflection.

 

And it's demonstrated that the ability of an object to reflect light highly dependent on its color (a dark color absorbs more light / heat of a light color). But while the application of infrared longwave radiation allows not to make such a significant difference, infrared shortwave have, between two colors (black and white), refraction and reflection differences of up to 35%.

 

The medium wave rays, are those that best manage to mediate between the intensity of transmitted energy (related to the exposure time), and reflection (linked to the use of distance and the type of irradiated material).

Type of wave lenght

Enviromental Impact

riscaldamento onde lunghe
Long Wave

Are those issued by the most common heating systems, for example, radiators and air convectors. The material reaction to their action is heated first on the surface and then by convection throughout the rest of the body, with long waiting periods.

riscaldamento onde medie
Medium Wave

Allow a good and constant flow of radiation on average, to maintain the highest penetrating power on all the radiated surfaces, irrespective of their nature and color.

riscaldamento onde corte
Short Wave

Allow greater transmission of radiation but, depending on the nature of the irradiated material and the quality of its surface, the reflection and refraction phenomena can produce a reduction in thermal absorption up to 35%.

spettro lunghezze d'onda

Difference between various wave lenghts

  • The infrared emitters in their entirety cover the range of wavelengths from 0.76 to 1000 microns.

  • The maximum irradiation shortwave radiation is between 1.3 and 2 microns.

  • The maximum irradiation of medium wave radiation is between 2.3 and 3.4 microns.

  • Accurate measurements in our laboratories have shown that the maximum heat absorption in materials to be industrially treated is between 2.8 and 3.4 microns, while the best heating effect for civil and commercial environments is produced by the wavelength of 2.4 microns.

  • The electric infrared heaters, BOOSTER and HT, use a armored heating element incased in a special steel, containing a electric heating nickel-chromium wire that  emits heat in the form of medium wave to 2.4 microns.

  • The lamp assumes a clear orange coloring corresponding to a temperature of about 800 ° C without showing any minimal visual disturbance differently from the short-wave emitters (1200° C).

  1. There are no harmful effects on the human body from infrared radiation. The only known effect is the absorption of such radiation by tissues that warm. The phenomenon however, can have adverse effects on specific organs like the eye: the eye cornea is in fact a fabric has very little blood supply. Therefore, it is not able to effectively dissipate the heat that can be transmitted by an infrared radiation at a high temperature such as that of short-wave emitters or a laser.

  2. Stearing directly and or frequent exposure to such sources can often cause visual defects even serious.

  • The BOOSTER and HT system with a 800°C armored heating element incased in a special steel filament allows a long life (minimum 9000 -10000 hours)

Difference between electric heaters
HALOGEN (short wave)  - ARMORED HEATING ELEMENT  (medium wave)

  • HALOGEN Shortwave heaters 

  1. Efficiency issued by the heater (92 ÷ 95)%. (Dispersions for heat absorption on the reflector and for emissivity in the visible light).

  2. Heat dispersion minimum for convection air in crossing (2 ÷ 3)%

  3. High loss of thermal efficiency in absorption on the body to be heated by reflection and refraction (up to 35%)

  4. Glare HIGH (see f1)

  5. Starting time 1 sec

  6. Duration 5000 hours MAX

  7. Replacement cost HIGH lampHeaters

  •  ARMORED HEATING ELEMENT average wave 2.4 micron.

  1. Good thermal efficiency in emission from the heater (90%). (Dispersion of heat absorption from the reflector)

  2. High dispersion of heat by convection crossing air (up to 30%)

  3. No loss of thermal efficiency in absorption on the body 

  4. Heated glare NULL

  5. Starting time 2 minutes

  6. Duration from 9,000 to 10,000 hours MINIMUM

  7. Cost of lamp parts MINIMUM

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