The impact of environmentally friendly refrigerants on heat pump efficiency

  • Tomasz Muszynski Gdansk University of Technology, Faculty of Mechanical Engineering, Department of Energy and Industrial Apparatus, Narutowicza 11/12, 80-233 Gdansk, Poland http://orcid.org/0000-0001-8896-7838
  • Blanka Jakubowska Gdansk University of Technology, Faculty of Mechanical Engineering, Department of Energy and Industrial Apparatus, Narutowicza 11/12, 80-233 Gdansk, Poland
  • Rafal Andrzejczyk Gdansk University of Technology, Faculty of Mechanical Engineering, Department of Energy and Industrial Apparatus, Narutowicza 11/12, 80-233 Gdansk, Poland

Abstract

The article discusses the issue of heat pump simulation. The proper design of the equipment and its proper operation allows for lower operating costs. Exact technical and economic analysis allows for the selection of system components with the highest possible efficiency and therefore lower energy demand. The use of systems based on environmentally friendly refrigerants can ensure a long product life, which is associated with a more favorable ie. the shorter payback period of the investment made. In addition, the proper design process of equipment allows optimizing its operation. In times of rapidly increasing share of energy costs in the total cost of investment, it is worthwhile to consider the use of innovative solutions and benefit from tailor-made solutions to specific operating conditions.

References

[1] T. Bohdal, H. Charun, M. Sikora, Empirical study of heterogeneous
refrigerant condensation in pipe minichannels, International Journal of
Refrigeration 59 (2015) 210 – 223.
[2] M. Job, L. Bartela, A. Skorek-Osikowska, Analysis of the use of waste
heat in an oxy-combustion power plant to replace steam cycle heat
regeneration, Journal of Power Technologies 93 (3).
[3] T. Muszynski, Design and experimental investigations of a cylindrical
microjet heat exchanger for waste heat recovery systems, Applied
Thermal Engineering (115) (2017) 782 – 792.
[4] C. Kowalczyk, R. M. Rolf, B. Kowalczyka, K. Badyda, Mathematical
model of combined heat and power plant using gatecycle tm software,
Journal of Power Technologies 95 (3) (2015) 183 – 191.
[5] D. Mikielewicz, B. Jakubowska, Prediction of flow boiling heat transfer
coefficient for carbon dioxide in minichannels and conventional channels,
Archives of Thermodynamics 37 (2) (2016) 89 – 106.
[6] T. Muszynski, D. Mikielewicz, Comparison of heat transfer characteristics
in surface cooling with boiling microjets of water, ethanol and
hfe7100, Applied Thermal Engineering 93 (2016) 1403 – 1409.
[7] D. Mikielewicz, R. Andrzejczyk, B. Jakubowska, J. Mikielewicz, Analytical
model with nonadiabatic effects for pressure drop and heat
transfer during boiling and condensation flows in conventional channels
and minichannels, Heat Transfer Engineering 37 (13-14) (2016)
1158–1171.
[8] T. Muszynski, R. Andrzejczyk, Applicability of arrays of microjet heat
transfer correlations to design compact heat exchangers, Applied
Thermal Engineering 100 (2016) 105 – 113.
[9] T. Muszynski, R. Andrzejczyk, Heat transfer characteristics of hybrid
microjet - microchannel cooling module, Applied Thermal Engineering
93 (2016) 1360 – 1366.
[10] R. Andrzejczyk, T. Muszynski, C. A. Dorao, Experimental investigations
on adiabatic frictional pressure drops of r134a during flow in 5 mm
diameter channel, Experimental Thermal and Fluid Science 83 (2017)
78 – 87.
[11] M. M. Shah, A new correlation for heat transfer during boiling flow
through pipes, ASHRAE transactions 82 (1976) 66 – 86.
Published
2019-03-28
How to Cite
MUSZYNSKI, Tomasz; JAKUBOWSKA, Blanka; ANDRZEJCZYK, Rafal. The impact of environmentally friendly refrigerants on heat pump efficiency. Journal of Power Technologies, [S.l.], v. 99, n. 1, p. 40–48, mar. 2019. ISSN 2083-4195. Available at: <https://papers.itc.pw.edu.pl/index.php/JPT/article/view/1059>. Date accessed: 29 july 2021.
Section
Thermodynamics

Keywords

heat pump; heat exchangers; refrigerants; energy efficiency

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