AixLib.Fluid.Movers.Compressors.Utilities.IsentropicEfficiency.SpecifiedEfficiencies.Poly_R134a_169_Reciprocating

# .AixLib.Fluid.Movers.Compressors.Utilities.IsentropicEfficiency.SpecifiedEfficiencies.Poly_R134a_169_Reciprocating

Reciporating Compressor - R134a - 169 cm³ - Polynomial

## Information

This model contains a calculation procedure for the isentropic efficiency presented by Darr and Crawford (1992).

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Reference | Formula | Refrigerants | Validity `ncompressor` | Validity `Πpressure`
--- | --- | --- | --- | ---
DarrAndCrawford1992 | `ηise = a1 + a2*n + a3/ρinlet` | R134a | `40 - 75` | `3 - 10`

#### References

J.H. Darr and R.R. Crawford (1992): Modeling of an Automotive Air Conditioning Compressor Based on Experimental Data: ACRC Technical Report 14. Publisher: Air Conditioning and Refrigeration Center. College of Engineering. University of Illinois at Urbana-Champaign.

## Revisions

- October 23, 2017, by Mirko Engelpracht:
  First implementation (see issue 467).

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