Force interaction of boiling dispersed emulsion particles

• Autorzy: Klimov R. A.
• Języki publikacji: EN

Abstrakty

EN

In the industry lubricating fluids are widely used, mostly they reduce the wear of cutting tools and improve the quality of working surface, both in metal processin g technology and in other industries [1-3]. To achieve the greatest effect lubricating fluids must have a good surface wettability. This is achieved by introducing into the lubricating fluids the corresponding surface active agents (SAA), which also increase the cooling capacity of the medium. The adsorption phenomenon is based on the lubricating effect of various components of lubricating fluids. For liquids the adsorption is determined by the change in surface tension σ from the concentration of SAA. The desorption phenomena of SAA and particles aggregation of dispersed phase of lubricating fluids, which is an emulsion, determines sedimentation stability of emulsion and its further use [2, 4-7]. To reduce costs it is economically feasible to reuse spent lubricating fluids, but for this, their composition must be brought to normative, i.e. to clear it of mechanical impurities and also get the most stable structure for sedimentation, i.e. it is necessary to obtain the smallest size of the dispersed phase [5, 8-10]. Existing methods for calculating the processes of emulsification and homogenization of lubricating fluids are based on the dynamics of a single particle, which either boils with a sudden change in external parameters [4-6, 8, 11], or is subjected to the action of dynamic impact during the acceleration (deceleration) of flow, as well as is subjected to mechanical effects [7, 9, 11]. The examination of the dynamic interaction of two particles while boiling of light boiling component of the emulsion is given in [12]. Therefore, the study and development of the theoretical grounds of multitude drops breakup of discretely distributed phase is important for the determination of the optimal dispersion modes which results in a significant reduction in energy costs both during the grinding and crushing process, as well as reduction of the financial costs with repeated use of the same lubricating fluids, previously prepared before each cycle of use.

Słowa kluczowe

EN

lubricating fluid; surface active agents; SAA; emulsion; dispersion

• Wydawca: Kielce University of Technology
• Czasopismo: Journal of New Technologies in Environmental Science
• Rocznik: 2018
• Tom: Vol. 2, nr 2
• Strony: 60--67
• Opis fizyczny: Bibliogr. 12 poz., rys., wykr., wzory

Twórcy

autor

Klimov R. A.

• Dnieperovskii State University, Ukraine

Bibliografia

• [1] Lubricating-cooling technological means for metal processing by cutting: Reference book / Edited by S.G. Entelis - Moscow: Mechanical Engineering, 1986. - 352 p. (In Russian).
• [2] Pavlenko A.M., Basok B.I.: Laws of boiling of emulsified liquids. / Heat-process engineering. - 2004. - Volume 26. - No 1. - PP. 21-25 (In Russian).
• [3] Dolinsky A.A., Pavlenko A.M., Basok B.I.: Thermophysical processes in emulsions. - Kiev, Naukova Dumka, 2005. - 265 p. (In Russian).
• [4] Pavlenko A.M., Klimov R.A.: Emulsion boiling features in adiabatic processes // Collection of scientific works of DSTU. - Dneprodzerzhinsk, 2007. - PP. 53-58 (In Russian).
• [5] Pavlenko A.M., Klіmov R.O., Basok B.І.: The development of hydrothermic homogenizing methods / Heat-process engineering. - 2005. - Volume. 27. - No 4. - PP. 64-71 (In Ukrainian).
• [6] Pavlenko A.M., Klimov R.A.: Dynamics of phase transitions in emulsions // System technologies. - 2006. - No 4 (45). - PP. 40-45 (In Russian).
• [7] Pavlenko A.M., Klimov R.A., Basok B.I.: Kinetics of evaporation in homogenization processes // Heat-process engineering. - 2006. - Volume. 28. - No 6. - PP. 14-20 (In Russian).
• [8] Dolinsky A.A., Basok B.I., Nakorchevsky A.I.: Adiabatically boiling flows. - Kiev, Publishing house: Naukova Dumka, 2001. - 208 p. (In Russian).
• [9] Dolinsky A.A., Ivanitsky G.K.: Theoretical justification of the discrete-pulse energy input. 1. Model of the dynamics of a single vapor buble // Heat-process engineering. - 1995. - Volume 17. - No. 5. - PP. 3-29 (In Russian).
• [10] Ivanitsky G.K.: Modeling of the processes of deformation and droplets breakup when moving in liquid // Heat-process engineering. - 1997. - Volume 19. - No 1. - PP. 9-16 (In Russian).
• [11] Ivanitsky G.K.: Destruction of emulsion droplets in adiabatically flashing flows / Heat-process engineering. - 1999. - Volume 21. - No. 4-5. - PP. 10-15 (In Russian).
• [12] Klimov R., Pavlenko A.: Dispersed phase breakup at emulsion boiling // Structure and Environment / Kielce University of Technology. - No. 1/2017, vol. 9. - pp. 63-69 (In English).

Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).