How Can You Calculate the Emissivity of Argon for Heat Transfer Analysis?

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SUMMARY

The emissivity of argon is extremely low, particularly in the infrared range of the electromagnetic spectrum, due to its nature as a rare gas. For heat transfer analysis involving argon, it is essential to consider both heat conduction and convection, as these mechanisms play significant roles at varying temperatures. Resources such as MIT's DSpace and the Decompression.org article on argon provide valuable insights into the thermal properties of gases. Understanding these concepts is crucial for accurately modeling heat transfer in gaseous environments.

PREREQUISITES
  • Understanding of emissivity and its significance in thermal analysis
  • Familiarity with heat transfer mechanisms, including conduction and convection
  • Basic knowledge of the electromagnetic spectrum, particularly infrared radiation
  • Experience with graphing and analyzing temperature-dependent data
NEXT STEPS
  • Research the emissivity values of various gases, focusing on argon and its thermal properties
  • Learn about heat conduction and convection principles in gases
  • Explore the use of thermal imaging and infrared spectroscopy for measuring emissivity
  • Investigate software tools for modeling heat transfer in gases, such as ANSYS Fluent
USEFUL FOR

Researchers, engineers, and students involved in thermal analysis, particularly those focusing on gas behavior in heat transfer applications.

gemt
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Hi,

Can anyone give me any information on where i could find information on the emissivity of a gas, particulally argon, or how i can calculate it? i am trying to create a graph of heat transfer against temperature and see which plays a larger role at particular temperatures when transfering heat through a gas.

Thanks

Gemma :-)
 
Science news on Phys.org
Curiously with Argon being a rare gas and the observation that oxygen nitrogen and the rare gases do not emit radiation in the IR range of the EMR at ordinary temperatures the answer is the emissivity is very very low.

http://dspace.mit.edu/handle/1721.1/11211
 
gemt said:
Can anyone give me any information on where i could find information on the emissivity of a gas, particulally argon, or how i can calculate it? i am trying to create a graph of heat transfer against temperature and see which plays a larger role at particular temperatures when transfering heat through a gas.
Are you more interested in heat conduction by gases? See
http://www.decompression.org/maiken/Why_Argon.htm
Also consider heat convection by gases.
 

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