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Pressure drop during condensation of R410A inside horizontal multiport Minichannels.

Number: pap. TP-0034

Author(s) : VU P. Q., CHOI K., OH J., et al.

Summary

In this study, the pressure drop’s characteristics during condensation were investigated in an experiment of R410A flowing inside three types of multi-port tubes. Two types of multiport minichannels have 8 channels with a 1.16 mm hydraulic diameter and 11 channels with 1.14 mm hydraulic diameter. The test sections were designed as a counter flow tube in a tube exchanger. The experiment is performed with mass fluxes of refrigerant between 50-400 kg/m2s, 3-12kW/m2 of heat fluxes, and saturation temperature of 48°C. The frictional pressure gradient increased with increasing of mass flux and vapor quality but insignificant effect on with heat flux. The experimental results are compared with some well-known correlations for frictional pressure gradient in mini and micro channels.

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Pages: 8

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Details

  • Original title: Pressure drop during condensation of R410A inside horizontal multiport Minichannels.
  • Record ID : 30021534
  • Languages: English
  • Source: 5th IIR Conference on Thermophysical Properties and Transfer Processes of Refrigerants.
  • Publication date: 2017/04/23
  • DOI: http://dx.doi.org/10.18462/iir.tptpr.2017.0034

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