The D 2 -Law of Droplet Evaporation When Calculating the Droplet Evaporation Process of Liquid Containing Solid State Catalyst Particles

Marek Ochowiak (), Zdzisław Bielecki (), Michał Bielecki, Sylwia Włodarczak, Andżelika Krupińska, Magdalena Matuszak, Dariusz Choiński, Robert Lewtak and Ivan Pavlenko
Additional contact information
Marek Ochowiak: Department of Chemical Engineering and Equipment, Poznan University of Technology, 60-965 Poznan, Poland
Zdzisław Bielecki: Kuncar S.A., Pszczyńska 167C, 43-175 Wyry, Poland
Michał Bielecki: EMAG Instytut Badawczy Sieć Badawcza Łukasiewicz-Instytut Technik Innowacyjnych EMAG, Leopolda 31, 40-189 Katowice, Poland
Sylwia Włodarczak: Department of Chemical Engineering and Equipment, Poznan University of Technology, 60-965 Poznan, Poland
Andżelika Krupińska: Department of Chemical Engineering and Equipment, Poznan University of Technology, 60-965 Poznan, Poland
Magdalena Matuszak: Department of Chemical Engineering and Equipment, Poznan University of Technology, 60-965 Poznan, Poland
Dariusz Choiński: Department of Automatic Control and Robotics, Silesian University of Technology, Akademicka 2A, 44-100 Gliwice, Poland
Robert Lewtak: Institute of Power Engineering, Department of Thermal Processes, Mory 8, 01-330 Warsaw, Poland
Ivan Pavlenko: Faculty of Technical Systems and Energy Efficient Technologies, Sumy State University, 40007 Sumy, Ukraine

Energies, 2022, vol. 15, issue 20, 1-10

Abstract: The review presents the D 2 -law of droplet evaporation, which is used to describe the spraying process involving the evaporation of droplets. This law, the subject of numerous publications, can be successfully applied to describe the droplet evaporation process under various conditions, including the calculations of the process of feeding the boiler with a liquid that contains catalyst particles. To date, not a lot of work has been devoted to this issue. The paper is a continuation of previous research concerning the spraying of liquids with a catalyst, which improves the efficiency of the process. The conducted analysis showed that the experimental data from previously published work are very compatible with the data obtained from the D 2 -law of droplet evaporation. At the standard speed of about 20 m/s of an aerosol flowing through a dust duct, droplets in the stream should be observed up to a distance of 1 m from the outlet of the apparatus supplying the system. Under such flow conditions, a droplet’s lifetime must be above 0.05 s. The dependence between a droplet’s lifetime and its diameter and temperature was determined. The obtained results confirmed that the effective droplet diameter is above 30 µm. Such droplets must be generated and then fed to the boiler for the catalyst to work properly. This law is an engineering approach to the problem, which uses relatively simple model equations in order to determine the evaporation time of a droplet.

Keywords: droplet evaporation; D 2 -law of droplet evaporation; combustion; dust duct; catalyst (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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