Firm particles movement on horizontal sites of exhaust gas duct low power boilers
D. V. Ostapenko, A. V. Lukjanov, L. D. Katin
Donbas National Academy of Civil Engineering and Architecture
Annotation: “Viscous” Stoks model is used now for calculations of firm particles movement in the gas stream, at action resistance forces on them. However its opportunities are limited by area of viscous flow at values of Reynolds number from 0,1 up to 2. Wider range has Klyachko dependence which complicates the equation of movement, making it more cumbrous. In work the analytical solution of the equation of particle movement has been received at a nonviscous flow. The received the first and the second integrals have allowed to define movement regularity of firm particles in non-stationary conditions which is characteristically for boilers of low power. The first integral allows to estimate time of particles start of the various size up to the stream speed value. In this case it is possible to define the model borders of the viscous flow round. The second integral allows to define the distance where there will be the stabilization of particle movement. The practical application of work results allows to define the sizes of entrance ash-catchers sections, laws of movement regularities in bunches of convective tubes, etc.
Keywords: gas-pipes of boilers, gas-powder stream, the equation of movement.
Pages: 145-151.
Link for citation: Ostapenko, D. V.; Lukjanov, A. V.; Katin, L. D. Firm particles movement on horizontal sites of exhaust gas duct low power boilers. – Text : electronic. – In: Modern Industrial and Civil Construction. – 2009. – Vol. 5, N 3. – Р. 145-151. – URL: https://donnasa.ru/publish_house/journals/spgs/2009-3/06_ostapenko_lukyanov_katin.pdf (date of access: 16.09.2024). (in Russian)
Vol. 5, N 3 (2009)Journal: Modern Industrial and Civil Construction
Publish house: Donbas National Academy of Civil Engineering and Architecture