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SAE J3094_202302

Test Procedure for Internal Heat Exchangers of Mobile Air-Conditioning Systems with R-134a or R-1234yf Refrigerant

Standard by SAE International, 2023-02-14

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  • Language: English
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About This Item

The purpose of this SAE Standard is to define a common set of thermodynamic test conditions to evaluate internal heat exchangers for use with R-134a and R-1234yf refrigerants in mobile air-conditioning systems. This SAE Standard can be used to test actual vehicle IHX designs or standardized IHX samples, which can be used for comparison based on a common length and shape. This revision updates the scaling limits for IHX based on bench testing results gained with various lengths of the same cross section design from two suppliers. Results of a very short IHX of approx 206 mm revealed a linear performance scaling. Subsequently the scaling limits were modified to up to a ratio of 1.1 and down to 200 mm and the reporting template of SAE J3174 updated.
SKU: 951771953cc3

  • Publication Date: 2023-02-14
  • Standard Status: latest
  • Publisher: SAE International
  • Document Type: Ground Vehicle Standard
  • Subject: Life cycle analysis, Air conditioning, Heat transfer, Heat exchangers, , , , ,
  • Official SAE: Doi link

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