Features of modeling a highly efficient multistage vapor compression heat pump unit

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Abstract

The increase in the cost of fuel and energy resource and the deterioration of the environment from the combustion of traditional fossil fuel, have led to a great interest in energy-saving technology by using secondary energy resources in the thermal energy of industrial, housing and communal services using heat pump units in Russia and abroad. This paper analyzes the well-known two-stage heat pump units, and reveals their advantages in comparison with single-stage. The modeling of a highly efficient multistage vapor compression heat pump unit is proposed. Moreover, a method for calculating a multistage heat pump unit with a high coefficient of performance is presented. In addition, an example of calculating the thermodynamic cycle of a four-stage heat pump unit is presented. The influence of the number of stages on the increase in coefficient of performance in relation to a single-stage heat pump unit, the effect of the temperature difference between the temperature of the high-potential heat source and the temperature of the low-potential heat source on the coefficient of performance were analyzed. In addition, the influence of the initial value of the temperature of the high-potential heat source before heating during the course in the heat pump unit on the value of coefficient of performance for a different number of stages is analyzed under the condition of a constant difference between the heating temperature of the high-potential heat source at the outlet of the heat pump unit and the temperature of the low-potential heat source.

About the authors

Yuri A. Antipov

Peoples’ Friendship University of Russia (RUDN University)

Author for correspondence.
Email: antipov-yua@rudn.ru
ORCID iD: 0000-0002-5598-7522

Candidate of Technical Sciences, Associate Professor of the Department of Mechanical Engineering and Instrumentation, Engineering Academy

6 Miklukho-Maklaya St, Moscow, 117198, Russian Federation

Irina I. Shatalova

Peoples’ Friendship University of Russia (RUDN University)

Email: shatalova-ii@rudn.ru
ORCID iD: 0000-0001-7302-4247

Candidate of Agricultural Sciences, Associate Professor of the Department of Innovative Management in Industries, Engineering Academy

6 Miklukho-Maklaya St, Moscow, 117198, Russian Federation

Kirill V. Shkarin

Peoples’ Friendship University of Russia (RUDN University)

Email: 1042180018@rudn.ru
ORCID iD: 0000-0002-5680-517X

postgraduate student, Department of Mechanical Engineering and Instrumentation, Engineering Academy

6 Miklukho-Maklaya St, Moscow, 117198, Russian Federation

Mikhail V. Lapin

Peoples’ Friendship University of Russia (RUDN University)

Email: 1042200019@rudn.ru
ORCID iD: 0000-0002-0100-6055

postgraduate student, Department of Mechanical Engineering and Instrumentation, Engineering Academy

6 Miklukho-Maklaya St, Moscow, 117198, Russian Federation

Dmitry A. Sokolov

Peoples’ Friendship University of Russia (RUDN University)

Email: 1042190196@rudn.ru
ORCID iD: 0000-0001-5175-2219

postgraduate student, Department of Mechanical Engineering and Instrumentation, Engineering Academy

6 Miklukho-Maklaya St, Moscow, 117198, Russian Federation

Artem O. Grinin

Peoples’ Friendship University of Russia (RUDN University)

Email: 1032182301@rudn.ru

student, Department of Mechanical Engineering and Instrumentation, Engineering Academy

6 Miklukho-Maklaya St, Moscow, 117198, Russian Federation

Kirill P. Toptygin

Peoples’ Friendship University of Russia (RUDN University)

Email: 1032182294@rudn.ru
ORCID iD: 0000-0001-6054-2096

student, Department of Mechanical Engineering and Instrumentation, Engineering Academy

6 Miklukho-Maklaya St, Moscow, 117198, Russian Federation

References

  1. Bell I, Groll E, Braun J, Horton T. Performance of vapor compression systems with compressor oil flooding and regeneration. Int. J. Refrigeration. 2011;34(1):234–242. https://doi.org/10.1016/j.ijrefrig.2010.09.004
  2. Bertsch SS. Theoretical and experimental investigation of a two stage heat pump cycle for Nordic climates. Master’s thesis, Mechanical Engineering, Herrick Labs 2005-13P, Report No. 7031-1. West Lafayette: Purdue University; 2005.
  3. Dabiri A, Keith Rice C. A compressor simulation model with corrections for the level of suction gas superheat. ASHRAE Transactions. 1981;87(2):771–782.
  4. Bertsch SS, Groll EA. Two-stage air-source heat pump for residential heating and cooling applications in northern U.S. climates. International Journal of Refrigeration. 2008; 31(7):1282–1292. https://doi.org/10.1016/j.ijrefrig.2008.01.006
  5. Bertsch SS, Groll E. Two-stage air-source heat pump for residential heating and cooling applications in northern U.S. climates. International Journal of Refrigeration. 2008;31(7): 1282–1292. https://doi.org/10.1016/j.ijrefrig.2008.01.006
  6. Heo J, Jeong MW, Jeon J, Kim Y. Effects of gas injection on the heating performance off two-stage heat pump using a twin rotary compressor with refrigerant charge amount. International Journal of Air-Conditioning and Refrigeration. 2008;16:77–82.
  7. Gorshkov VG. Heat pumps. Analytical review. Handbook of industrial equipment VVT. 2004;2:47–80. (In Russ.)
  8. Wang X, Hwang Y, Radermacher R. Two-stage heat pump with vapor-injected scroll compressor using R410A as a refrigerant. International Journal of Refrigeration. 2009; 32(6):1442–1451. https://doi.org/10.1016/j.ijrefrig.2009.03.004
  9. Ma G, Zhao H. Experimental study of a heat pump system with flash-tank coupled with scroll compressor. Energy and Buildings. 2008;40(5):697–701. https://doi.org/10.1016/j.enbuild.2007.05.003
  10. Nguyen M, Hewitt N, Huang M. Performance evaluation of an air source heat pump using economized vapor injection compressor and flash tank coupled with capillary tubes. Proceeding of International Congress of Refrigeration, Beijing, China. 2007;8(21):ICR07-E2-1110.

Copyright (c) 2021 Antipov Y.A., Shatalova I.I., Shkarin K.V., Lapin M.V., Sokolov D.A., Grinin A.O., Toptygin K.P.

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This work is licensed under a Creative Commons Attribution 4.0 International License.

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