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Prediction of R410A charge amount in a microchannel condenser.

Number: pap. ID: 434

Author(s) : PARK C. Y.

Summary

A numerical study was performed to predict refrigerant charge amount in a microchannel condenser for a R410A residential air-conditioning system. The condenser consisted of 3 passes, and the first, second, and third pass had 44, 19, and 11 tubes, respectively. In this study, the condenser was divided into 410 finite volumes, and analyzed by an e-NTU method to calculate the R410A amount distribution and a total charge amount in the condenser. The predicted total charge amount was compared with the experimentally measured charge amount under a standard ARI A condition. The developed model could predict the charge amount within prediction errors from –3.0 to –23.9%. Air velocity distribution at the condenser face was considered as non-uniform and uniform by the simulation model, and its results showed that the air velocity distribution could significantly influence the charge amount and vapor phase distribution in the condenser.

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Pages: 8 p.

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Details

  • Original title: Prediction of R410A charge amount in a microchannel condenser.
  • Record ID : 30003000
  • Languages: English
  • Source: Proceedings of the 23rd IIR International Congress of Refrigeration: Prague, Czech Republic, August 21-26, 2011. Overarching theme: Refrigeration for Sustainable Development.
  • Publication date: 2011/08/21

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