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Home arrow Resources arrow ASHRAE Glossary
Glossary

 

The terms and definitions included in this glossary were taken from "ASHRAE Terminology of Heating, Ventilation, Air Conditioning & Refrigeration".
To access the complete glossary please visit ASHRAE's Bookstore.


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infrared (IR) radiation


range of electromagnetic radiation wavelengths greater than those of visible light and shorter than those of microwaves; generally between 0.8 micrometre and 1 millimetre. IR originates from either incandescent or nonincandescent hot bodies or from flames. The energy is used as a means of direct heat transfer from the source to the object(s), to be heated without materially heating the intervening air.

 

 

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