Authors

Energy efficiency and temperature conditions of a single-stage low-speed long-stroke reciprocating compressor

DOI: 10.17586/1606-4313-2025-24-3-49-57
UDC 621.51+621.56

Energy efficiency and temperature conditions of a single-stage low-speed long-stroke reciprocating compressor

Yusha V.L., Busarov Sergey S., Nedovenchany Aleksey V.

For citation: Yusha V.L., Busarov S.S., Nedovenchany A.V. Energy efficiency and temperature conditions of a single-stage low-speed long-stroke reciprocating compressor. Journal of International Academy of Refrigeration. 2025. No 3. p. 49-57. DOI: 10.17586/1606-4313-2025-24-3-49-57

Abstract
The article concerns the working processes and integral characteristics of a single-stage piston long-stroke low-speed refrigeration compressor over a wide range of ammonia boiling and condensation temperatures. A method for calculating the actual working process of such a compressor stage is presented, which takes into account, among other things, the processes of unsteady heat conduction when combining boundary conditions of the 2nd and 3rd kind. The coefficient of performance and discharge temperature are considered as integral indicators. Condensation and boiling temperatures, and heat flux density on the outer surface of the cylinder are considered as independent parameters. A comparative analysis of the efficiency of the working process of the stage under consideration is performed at condensation and boiling temperatures in the range of 293…343 K and 258…193 K, respectively, for different heat flux density on the outer surface of the cylinder. The relationship between the heat flux density, condensation temperature and boiling temperature of ammonia with the integral characteristics of the compressor under consideration is investigated. It is shown that at boiling temperatures below 228 K, the energy efficiency of a single-stage, low-speed, long-stroke refrigeration compressor can be higher than that of high-speed, two-stage refrigeration compressors.

Keywords: reciprocating refrigeration compressor, ammonia, low-speed long-stroke stage, working processes, mathematical modeling, coefficient of performance, discharge temperature.

All references

1. Zelikovsky I.Kh., Kaplan L.G. Small refrigerating machines and installations: a reference book. Moscow: Agropromizdat, 1989. 672 p. (in Russian)

2. Trott A.R., Welch T. Refrigeration and Air-Conditioning. 3rd ed. Butterworth Heinemann, Oxford, 2000. 377 p.

3. BITZER.Reciprocating compressors. [Electronic resource]: URL: https://www.bitzer.de/ru.(accessed 12/16/2023)

4.Copeland compressors. [Electronic resource]: URL: https://copelandcompressor.ru / (accessed 12/16/2023) 5. Semi-hermetic reciprocating compressors RDL. [Electronic resource]: URL: https://radoil.ru/catalog/kompressory-rdl/. (accessed 04/05/2024)

6.Catalog compressors Belief 2023. [Electronic resource]: URL: https://belief.su/novyj-katalog-kompressory-belief-2023. (accessed 04/05/2024)

7.Koshkin N.N., Tkachev A.G., Badylkes I.S. and others. Refrigerating machines / edited by N.N. Koshkin. Moscow: Food industry, 1973. 512 p. (in Russian)

8.Bogdanov S.N., Buchko N.A., Guigo E.I. Theoretical foundations of refrigeration engineering. Heat and mass transfer. Moscow: Agropromizdat, 1986. 320 p. (in Russian)

9.Arkharov A.M., Shishov V.V., Talyzin M.S. Statistical entropy analysis of carbon dioxide low-temperature transcritical cycles. EngineeringJournal: Science and Innovation. 2017. № 3. http://dx.doi.org/10.18698/2308-6033-2017-3-1601. (in Russian)

10. Khryokin A.S., Baranov I.V. Comparative analysis of the efficiency of refrigeration machine cycles. Journal of International Academy of Refrigeration. 2021. No 1. p. 12-21. DOI: 10.17586/1606-4313-2021-20-1-12-21 (in Russian)

11. Khrekin А.С., Baranov И.В., Nikitin А.А. The analysis of cascade refrigeration machine cycles efficiency using carbon dioxide. Omsk Scientific Bulletin. Series «Aviation-Rocket and Power Engineering», 2021. Vol. 5. No. 4, p. 55-64. https://doi.org/10.25206/2588-0373-2021-5-4-55-64. (in Russian)

12. Yusha V.L. Scientific and technological prerequisites for improvement and industrial development of low-flow compressor units based on long-stroke piston stages. Omsk Scientific Bulletin. Series «Aviation-Rocket and Power Engineering», 2022. Vol. 6. No 3, 24-39. https://doi.org/10.25206/2588-0373-2022-6-3-24-39. (in Russian)

13. Yusha V.L. Theoretical assessment of the effectiveness of application single-stage long-stroke piston compressors in refrigeration and hydrocarbon gas liquefaction systems. Omsk Scientific Bulletin. Series «Aviation-Rocket and Power Engineering», 2024. Vol. 8. No1, p. 17-24. https://doi.org/10.25206/2588-0373-2024-8-1-17-24. (in Russian)

14.Busarov S.S. Creation and improvement of grease-free reciprocating compressors of medium and high pressure based on low-flow low-speed long-stroke stages: dis. ... Doctor of Technical Sciences. Omsk, 2024. 325 p. (in Russian)

15. Yusha V.L., Busarov S.S., Nedovenchany А.V. The assessment of applicability of single-stage piston long-stroke low-speed compressors in low-temperature refrigeration machines. Omsk Scientific Bulletin. Series «Aviation-Rocket and Power Engineering», 2024. Vol. 8. No3, p. 21-28. https://doi.org/10.25206/2588-0373-2024-8-3-21-28. (in Russian)

16. Dutta A.K., Yanagisawa T., Fukuta M. A Study on Compression Characteristic of Wet Vapor Refrigerant. International Compressor Engineering Conference at Purdue. 1996. 1112. URL: https://docs.lib.purdue.edu/icec/1112 (date of request: 14.05.2022).

17. Akhmed H.J., Khalifa A.H., Khalaf D.Z. Performance Investigation of Vapor Compression Cycle with a Variable Speed Compressor and Refrigerant Injection. Journal of Mechanical Engineering. 2019. Vol. 16 (2). P. 63-76.

18. Wang B., Yang M., Dewitte P. et al. Evaluation of methods to decrease the discharge temperature of R32 scroll compressor. International Compressor Engineering Conference at Purdue. 2014. 2371. URL: https://docs.lib.purdue.edu/icec/2371. (date of request: 11.03.2022).

19. Pawale K.T., Sali N.V., Deshpande G.N. Vapor compression refrigeration system with refrigerant injection: a review. Elixir Mech. Eng. 2014. Vol. 72. P. 25410-25414.

20. Lin J., Lian Y., Wu J. Numerical investigation on vapor-liquid two-phase compression in the cylinder of rotary compressors. Applied Thermal Engineering. 2020. Vol. 170. 115022. DOI: 10.1016/j.applthermaleng.2020.115022.

21. Controlled Injection Cooling (CIC). [Electronic resource]: URL: https://www.bitzer.de (date of request: 22.02.2022).

22.Pekarev V.I., Ivanova S.N., Safonova N.A. Determination of the injection point of coolant into a screw compressor. ScientificJournal of the National Research University of ITMO. The series "Refrigeration and air conditioning". 2015. No. 2. pp. 45-48. (in Russian)

23. Wang J., Ding H., Wang B. et al. CFD simulation of a rotary compressor with gas injection.IOP Conference Series: Materials Science and Engineering. 2019. Vol. 604. 012084. DOI: 10.1088/1757-899X/604/1/012084.

24. Wei H., Yu B., Yang O. Teoretical and experimental stady on rotary compressor with double vapor injection and its system. IOP Conference Series: Materials Science and Engineering.2021. Vol. 1180. 012049. DOI: 10.1088/1757-899X/1180/1/012049.

25. New possibilities of low-temperature application of refrigeration compressors. [Electronic resource]: URL: https://climate.emerson.com/documents/новые-возможности-низкотемпературного-применения-холодильных-компрессоров-ru-ru-4215396.pdf (date of request: 03.06.2022). (in Russian)

26.Budanov V.A., Berkan I.V. Improving the energy efficiency of compressors. Kazakhstan-Kholod2020: collection of dokl. international scientific and technical Conference (March 4-5, 2020) Almaty: ATU Publishing House, 2020. pp. 49-54. (in Russian)

27.Isachenko V.P. et al. Heat transfer. Moscow: Energoizdat, 1981. 416 p. (in Russian)

28. Refrigerating machines. / A.V. Baranenko, N.N. Bukharin, V.I. Pekarev, L.S. Timofeevsky; under the general editorship of L.S. Timofeevsky. St. Petersburg: Polytechnic, 2006. 944 p.(in Russian)

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