Chemical and Petroleum Engineering

, Volume 54, Issue 9–10, pp 658–665 | Cite as

Development, Calculation and Experimental Study of a Heat Pump for Vacuum Water Distillation Systems

  • I. I. MalafeevEmail author
  • B. T. Marinyuk
  • G. A. Il’in

One of the most promising methods of water purification and distillation is the evaporation method using heat pump energy transformers. The article describes the developed scheme of a heat pump for vacuum distillation, which operates under atmospheric pressure with water at saturation temperatures in the range of 20–40 °C. Results of experimental studies on a specially made installation are presented. The proposed technical solution using a two-lobe Roots type vacuum compressor pump as the basic means of increasing the pressure is shown to be viable. A mathematical description of the unsteady heat and mass exchange process of a single-stage distillation unit with mechanical vapor compression was verified. An equation for calculating the heat transfer coefficient for evaporation of water under vacuum in a free volume on vertical pipes is proposed. Data on the performance and power consumption of the installation were obtained.


heat pump vacuum heat pump distiller two-lobe Roots type vacuum pump-compressor heat transfer under vacuum evaporation desalting distillation 


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • I. I. Malafeev
    • 1
    Email author
  • B. T. Marinyuk
    • 1
  • G. A. Il’in
    • 1
  1. 1.Moscow Polytechnic UniversityMoscowRussia

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