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Heat conductivity of the blends R410A, R507, R404A and R407C.

Wärmeleitfähigkeit der Gemische R410A, R507, R404A und R407C.

Author(s) : SPINDLER K., HOFFMANN N., HAHNE E.

Summary

The heat conductivity of saturated vapour of blends can be obtained through simple addition of the molar weights of the pure components. The heat conductivity of saturated liquid can be figured with a power formula. Of the blends studied, R410A possesses the highest heat conductivity in saturated-liquid state, obtaining the same values as R22. The heat conductivity of R407C is about 3% lower, and that of R507 and R404A, about 22% lower (thus approaching the value of R502). As for the heat conductivity of the saturated vapour, the differences between the mixtures are lower, about 20%; they are about 20% higher as the values for R22 and R502.

Details

  • Original title: Wärmeleitfähigkeit der Gemische R410A, R507, R404A und R407C.
  • Record ID : 1998-0117
  • Languages: German
  • Source: DKV-Tagungsbericht 23. 1996 Leipzig.
  • Publication date: 1996/11/20
  • Document available for consultation in the library of the IIR headquarters only.

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