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Performance of single-stage absorption lithium bromide refrigerating machine at boiling points below О °С

DOI: 10.21047/1606-4313-2017-16-4-52-58
UDC 621.575

Performance of single-stage absorption lithium bromide refrigerating machine at boiling points below О °С

Baranenko A.V., Posylin D.N., Olga S. Malinina

For citation: Baranenko A.V., Posylin D.N., Malinina O.S. Performance of single-stage absorption lithium bromide refrigerating machine at poling points below 0 оС. Vestnik Mezhdunarodnoi akademii kholoda. 2017. No 4. p. 52-58

Abstract
The use of lithium bromide aqueous solution of low salt concentration as a cooling medium in absorption lithium bromide refrigerating machines allows boiling points below 0 °Сthat enlarges the field of application for these machines greatly. On the basis of extrapolated experimental data from various sources the values of aqueous tension for lithium bromide solution of low concentration are calculated at temperatures below 0 °С. The analysis of energy efficiency for single-stage absorption lithium bromide refrigerating machine at negative boiling point of the cooling medium in evaporator is carried out. The graphs for the dependencies between coefficient of performance and the wide range of external heat source parameters are given.

Keywords: low-temeperature absorption lithium bromide refrigerating machine, negative boiling point, energy efficiency.

All references

1. Frolkin A.A., Krasnov M.I. The use of THERMAX ABHM in the food industry. Kholodil'naya tekhnika. 2016. No 2. p. 51-54. (in Russian)

2. Uchida S., Nishiguchi A. Low temperature absorption refrigeration machine with water-LiBr mixed refrigerant. Int. J. Refrigeration, 2006. vol. 81, No. 946. P. 618-621.

3. Hisajima D., Kawamura H., Oouchi T. Determination of Thermal Properties of Dilute LiBr-Water Solutions. Int. J. of Thermophysics. 1997. Vol. 18, No. 2. P. 397-406.

4. Xu Z.Y., Wang R.Z. Absorption refrigeration cycles :Categorized based on the cycle construction. International Journal of Refrigeration. 2016, vol. 62, p. 114-136.

5. Xiaohui She, Yonggao Yin, Mengfei Xu, Xiaosong Zhang. A novel low-grade heat-driven absorption refrigeration system with LiCl-H2O and LiBr-H2O working pairs. International Journal of Refrigeration. 2015, vol. 58, p. 219-234.

6. Boman D.B., Hoysall D.C., Staedter M.A., Goyal A., Ponkala M.J., Garimella S. A method for comparison of absorption heat pump working pairs. International Journal of Refrigeration, 2017, vol. 77, p. 149-175.

7. Stepanov K.I., Mukhin D.G., Volkova O.V., Baranenko A.V. Analysis of the thermodynamic cycle COP ABHM with two-stage absorption with a negative temperature cooling. Vestnik Mezhdunarodnoi akademii kholoda. 2016. No 1. p. 86-92. (in Russian)

8. Gorshkov V.G., Mukhin D.G., Dzino A.A. Obtaining low boiling point refrigerant in lithium bromide absorption refrigerating machine. Vestnik Mezhdunarodnoi akademii kholoda. 2013. No 4. p. 51-53. (in Russian)

9. Löwer H. Thermodynamische und physikalische Eigenschaften der wässrigen Lithiumbromid-Lösung, PhD thesis, Technischen Hochschule Karlsruhe, 1960.

10. Boryta D.A., Maas A.J., Grant C.B. Pressure – temperature – concentration relationship for system lithium bromide and water (40 – 70% lithium bromide). // J Chem. Eng. Data. 1975, 20 (3) p. 316-319.

11. Renz M. Bestimmung Thermodynamischer Eigenschaften Wässriger und Methylalkoholischer Salzlösungen, Forschungsberichte des Deutschen Kälte- und Klimatechnischen Vereins, 1980, No. 5.

12. Matsuda A., Munakata T., Yoshimaru T., Kubara T., Fuchi H. Measurement of vapor pressures of lithium bromide water solutions. // Kagaku Kogaku Ronbunshu. 1980, 6 (2), p. 119-122.

13. Mc Neely L.A. Thermodynamic properties of aqueous solutions of lithium bromide. // ASHRAE Trans, 1979, vol. 85, p. 413-434.

14. Kaita Y. Thermodynamic properties of lithium bromide-water solutions at high temperatures. // International Journal of Refrigeration, 2001, vol. 24, p. 374-390.

15. Chua H.T., Toh H.T., Malek A., Ng K.C., Srinivasan K. Improved thermodynamic property fields of LiBr–H2O solution // International Journal of Refrigeration, 2000, 23 (6), p. 412-429.

16. Ruiter J.P. Simplified thermodynamic description of mixtures and solution, International Journal of Refrigeration, 1990, 13 (4), p. 223-236.

17. Patterson M.R., Perez-Branco H. Numerical fits of the properties of lithium bromide-water solutions. // ASHRAE Trans, 1988, vol. 94, p. 2379-2388.

18. Feurecker G., Scharfe J., Greiter I., Frank C., Alefeld G. Measurement of thermophysical properties of aqueous LiBr solutions at high temperatures and concentrations. // Proc. Int. Absorp. Heat Pump Conf. ASME, 1993, vol. 31, p. 493-499.

19. Karavan S.V., Dzino A.A., Karavan D.V., Malyshev A.A. Enthalpy diagram of an aqueous solution of lithium bromide. Vestnik Mezhdunarodnoi akademii kholoda. 2012. No 3. p. 36-38. (in Russian)

20. Yuan, Z., Herold, K.E. Thermodynamic Properties of Aqueous Lithium Bromide Using a Multiproperty Free Energy Correlation. International J. Heating, Ventilating, Air-Conditioning and Refrigeration, 2005, Vol. 11, No. 3, pp. 377-393.

21. Patek J., Klomfar J. A computationally effective formulation of the thermodynamic properties of LiBr – H2O solution from 273 to 500 K over full composition range. International Journal of Refrigeration, 2006; Vol. 29, pp. 566-578.

22. Fernández D.P., Goodwin A.R.H., Lemmon E.W., et al. A Formulation for the Static Permittivity of Water and Steam at Temperatures from 238 Кto 873 Кat Pressures up to 1200 MPa, Including Derivatives and Debye-Huckel Coefficients. J. Phys. Chem. Ref. Data. 1997. Vol. 26. Р. 1125-1166.

23. Absorption heat converters. / A.V. Baranenko, L.S. Timofeevskii, A.G. Dolotov, A.V. Popov: monograph. SPb.: SPbGUNiPT, 2005. 338 p. (in Russian)

24. Thermal and constructive calculations of refrigerating machines, heat pumps and thermotransformers. Part 1. Calculation of cycles, thermodynamic and thermophysical properties of working substances: textbook. / L.S. Timofeevskii, V.I. Pekarev, N.N. Bukharin ets. SPb.: SPbGUNiPT, 2006. 260 p. (in Russian)

25. Refrigerating machines: Textbook for students of technical colleges, specialty "Technics and physics of low temperatures" / A.V. Baranenko, N.N. Bukharin, V.I. Pekarev, L.S. Timofeeskii; Under the general edition L.S. Timofeevskogo. SPb.: Politekhnika, 2006. 944 p. (in Russian)

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