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Accurate modeling of heat pump cycles with steam injection in off-design regimes utilizing an integrated approach.

Number: 1171

Author(s) : MOROZ L., PASTRIKAKIS V., YEVLAKHOV V., ALTUKHOVA O., HOISAN S.

Summary

The calculation of heat pump cycles is usually made with a number of assumptions. Common mistakes in this early stage are to improperly account for the hydraulic resistance of the heat exchange equipment, the use of constant compressor efficiency (independent from operating mode), and etc. All of these assumptions critically affect the change in parameters, important to the consumer.

The authors of this article consider an integrated method for the heat pump cycle designing in various operating modes. The proposed approach includes the preliminary design of the compressor unit and takes into account the influence of the heat exchangers’ hydraulic resistance. The integration process of the calculated systems enables accurate evaluation of the parameters after the 1st stage of the compressor, taking into account the steam injection. The authors then compare the proposed approach against a cycle analysis which doesn’t consider the additional influence of real equipment parameters.

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Pages: 15

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Details

  • Original title: Accurate modeling of heat pump cycles with steam injection in off-design regimes utilizing an integrated approach.
  • Record ID : 30027742
  • Languages: English
  • Subject: Technology
  • Source: IIR Rankine Conference 2020.
  • Publication date: 2020/07/31
  • DOI: http://dx.doi.org/10.18462/iir.rankine.2020.1171

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