Improvement of refrigerating machine energy efficiency through radiative removal of condensation heat

Authors

DOI:

https://doi.org/10.15587/1729-4061.2022.251834

Keywords:

radiative cooling, energy efficiency, condensation pressure reduction, refrigerating machine

Abstract

In regions with a continental climate, refrigerators with air-cooled condensers operate at high condensation pressures during the summer season which reduces their efficiency and accelerates the wear of compressors. To reduce condensation pressure, it was proposed to use radiative cooling which is a way of heat removal through the planet's atmosphere to outer space in a form of infrared radiation. A refrigerating machine with an assembly of condensation heat removal including air and liquid cooling condensers connected in series has been developed. To reduce the condensation temperature, a pre-cooled heat-transfer agent is fed to the liquid cooling condenser during the day hours at high atmospheric temperatures. At night, the heat-transfer agent is cooled by radiative cooling.

An experimental study of the operation of a 600 W refrigerating machine including a sealed piston compressor was conducted. R134a refrigerant was used. Supply of pre-cooled heat-transfer agent at +33.1 °С has provided a reduction of condensation temperature from +47.0 to +39.1 °С. The study was conducted at an atmospheric air temperature of +38.0 °С. The degree of pressure growth was decreased by 30 %. The refrigeration coefficient was increased by 11 %. In comparison with the conventional scheme with an air-cooled condenser, energy consumption by the system did not change in the daytime.

The offered scheme of condensation heat removal reduces the pressure of condensation and provides stability for refrigerating machine operation. It can be used in stationary refrigerating machines at high daytime temperatures.

Author Biographies

Alexandr Tsoy, Almaty Technological University

PhD, Associate Professor

Department of Machines and Devices of Manufacturing Processes

Oleksandr Titlov, Odessa National Academy of Food Technologies

Doctor of Technical Sciences, Professor, Head of Department

Department of Oil and Gas Technologies, Engineering and Power Engineering

Alexandr Granovskiy, Almaty Technological University

Senior Researcher

Department of Machines and Devices of Manufacturing Processes

Dmitriy Koretskiy, Almaty Technological University

Junior Researcher

Department of Machines and Devices of Manufacturing Processes

Olga Vorobyova, Almaty Technological University

Junior Researcher

Department of Machines and Devices of Manufacturing Processes

Diana Tsoy, Almaty Technological University

PhD

Department of Machines and Devices of Manufacturing Processes

Rita Jamasheva, Almaty Technological University

Junior Researcher

Department of Mechanization and Automation of Production Processes

References

  1. Wang, S. K. (2001). Handbook of air conditioning and refrigeration. McGraw-Hill. Available at: https://gmpua.com/CleanRoom/HVAC/Cooling/Handbook%20of%20Air%20Conditioning%20and%20Refrigeration.pdf
  2. Kurylev, E. S., Gerasimov, N. A. (1980). Holodil'nye ustanovki. Leningrad: Mashinostroenie, 622. Available at: https://www.twirpx.com/file/1835600/
  3. Fugmann, H., Nienborg, B., Trommler, G., Dalibard, A., Schnabel, L. (2015). Performance Evaluation of Air-Based Heat Rejection Systems. Energies, 8 (2), 714–741. doi: https://doi.org/10.3390/en8020714
  4. Xiao, L., Ge, Z., Yang, L., Du, X. (2018). Numerical study on performance improvement of air-cooled condenser by water spray cooling. International Journal of Heat and Mass Transfer, 125, 1028–1042. doi: https://doi.org/10.1016/j.ijheatmasstransfer.2018.05.006
  5. Zhao, B., Hu, M., Ao, X., Chen, N., Pei, G. (2019). Radiative cooling: A review of fundamentals, materials, applications, and prospects. Applied Energy, 236, 489–513. doi: https://doi.org/10.1016/j.apenergy.2018.12.018
  6. Hossain, M. M., Gu, M. (2016). Radiative Cooling: Principles, Progress, and Potentials. Advanced Science, 3 (7), 1500360. doi: https://doi.org/10.1002/advs.201500360
  7. Samuel, D. G. L., Nagendra, S. M. S., Maiya, M. P. (2013). Passive alternatives to mechanical air conditioning of building: A review. Building and Environment, 66, 54–64. doi: https://doi.org/10.1016/j.buildenv.2013.04.016
  8. Ahmad, M. I., Jarimi, H., Riffat, S. (2019). Nocturnal Cooling Technology for Building Applications. SpringerBriefs in Applied Sciences and Technology. doi: https://doi.org/10.1007/978-981-13-5835-7
  9. Van der Sluis, S. M., Oostendorp, P. A., Hendriksen, L. J. A. M. (2006). Refrigeration or cooling system. WO/2006/054897 A1. Available at: https://patentscope.wipo.int/search/en/detail.jsf?docId=WO2006054897
  10. Liu, J., Zhou, Z., Zhang, J., Feng, W., Zuo, J. (2019). Advances and challenges in commercializing radiative cooling. Materials Today Physics, 11, 100161. doi: https://doi.org/10.1016/j.mtphys.2019.100161
  11. Goldstein, E. A., Raman, A. P., Fan, S. (2017). Sub-ambient non-evaporative fluid cooling with the sky. Nature Energy, 2 (9). doi: https://doi.org/10.1038/nenergy.2017.143
  12. Goldstein, E. A., Nasuta, D., Li, S., Martin, C., Raman, A. (2018). Free Subcooling with the Sky: Improving the efficiency of air conditioning systems. 17th International Refrigeration and Air Conditioning Conference at Purdue, 2293. Available at: https://docs.lib.purdue.edu/cgi/viewcontent.cgi?article=2912&context=iracc
  13. Raman, A. P., Anoma, M. A., Zhu, L., Rephaeli, E., Fan, S. (2014). Passive radiative cooling below ambient air temperature under direct sunlight. Nature, 515 (7528), 540–544. doi: https://doi.org/10.1038/nature13883
  14. Aili, A., Zhao, D., Lu, J., Zhai, Y., Yin, X., Tan, G., Yang, R. (2019). A kW-scale, 24-hour continuously operational, radiative sky cooling system: Experimental demonstration and predictive modeling. Energy Conversion and Management, 186, 586–596. doi: https://doi.org/10.1016/j.enconman.2019.03.006
  15. Zhao, D., Aili, A., Zhai, Y., Lu, J., Kidd, D., Tan, G. et. al. (2019). Subambient Cooling of Water: Toward Real-World Applications of Daytime Radiative Cooling. Joule, 3 (1), 111–123. doi: https://doi.org/10.1016/j.joule.2018.10.006
  16. Maslov, O. S., Nikishin, V. V., Kozhemyachenko, A. V., Lemeshko, M. A. (2017). Issledovaniya vliyaniya ekspluatatsionnyh faktorov na teploenergeticheskie harakteristiki malyh holodil'nyh mashin. Innovatsionnye tekhnologii v obrazovanii i nauke: Sbornik materialov III Mezhdunarodnoy nauchno-prakticheskoy konferentsii. Cheboksary, 234–242. Available at: https://www.elibrary.ru/item.asp?id=32266338
  17. Meir, M. G., Rekstad, J. B., LØvvik, O. M. (2002). A study of a polymer-based radiative cooling system. Solar Energy, 73 (6), 403–417. doi: https://doi.org/10.1016/s0038-092x(03)00019-7
  18. Tsoy, A. P., Granovskiy, A. S., Jamasheva, R. A. (2021). Methodology for determining of the main characteristics of a refrigeration system with condensation heat removal by radiative cooling. The Journal of Almaty Technological University, 3, 34–41. doi: https://doi.org/10.48184/2304-568x-2021-3-34-41
  19. Tsoy, A. P., Granovsky, A. S., Tsoy, D. A. (2020). Modelling of the operation of a refrigeration unit using radiative cooling to maintain the storage temperature in the cold room. MATEC Web of Conferences, 324, 02006. doi: https://doi.org/10.1051/matecconf/202032402006
  20. Tsoy, A. P., Granovskiy, A. S., Tsoy, D. A., Baranenko, A. V. (2019). Simulation of radiation cooling system for air conditioning. Journal International Academy of Refrigeration, 3, 3–14. doi: https://doi.org/10.17586/1606-4313-2019-18-3-3-14
  21. Golaka, A. R. T., Exell, R. H. B. (2003). Night radiative cooling and underground water storage in a hot humid climate: a preliminary investigation. Proceedings of the 2nd Regional Conference on Energy Technology Towards a Clean Environment. Phuket. Available at: https://www.researchgate.net/profile/Auttapol-Golaka/publication/267299862_3-012_O_Night_radiative_cooling_and_underground_water_storage_in_a_hot_humid_climate_a_preliminary_investigation/links/5504638c0cf24cee39ffcbbd/3-012-O-Night-radiative-cooling-and-underground-water-storage-in-a-hot-humid-climate-a-preliminary-investigation.pdf
  22. Houghton, D. (2006). Radiant Night-Sky Heat Rejection and Radiant Cooling Distribution for a Small Commercial Building. ACEEE Summer Study on Energy Efficiency in Buildings, 139–147. Available at: https://www.aceee.org/files/proceedings/2006/data/papers/SS06_Panel3_Paper12.pdf
  23. Coolselector®2. Danfoss. Available at: https://www.danfoss.com/en/service-and-support/downloads/dcs/coolselector-2/

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Published

2022-02-25

How to Cite

Tsoy, A., Titlov, O., Granovskiy, A., Koretskiy, D., Vorobyova, O., Tsoy, D., & Jamasheva, R. (2022). Improvement of refrigerating machine energy efficiency through radiative removal of condensation heat. Eastern-European Journal of Enterprise Technologies, 1(8(115), 35–45. https://doi.org/10.15587/1729-4061.2022.251834

Issue

Vol. 1 No. 8(115) (2022): Energy-saving technologies and equipment

Section

Energy-saving technologies and equipment

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Copyright (c) 2022 Alexandr Tsoy, Oleksandr Titlov, Alexandr Granovskiy, Dmitriy Koretskiy, Olga Vorobyova, Diana Tsoy, Rita Jamasheva

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