Simulation of deposit growth on recuperator tubes in pit furnaces

• Autorzy: Wacławiak K.
• Języki publikacji: EN

Abstrakty

EN

Nowadays, the operation of pit furnaces without air preheating is not acceptable. However, a deposit growth on the tubes of air preheaters significantly decreases their efficiency. This paper presents a two-dimensional simulation of the phenomenon of deposition on the tubes of air preheaters with a staggered tube layout. It has been shown that it is possible to predict the deposit shape and its effect on heat transfer from combustion gas to combustion air.

Słowa kluczowe

EN

pit furnaces; deposit; numerical simulation; heat transfer

PL

wymiana ciepła; piec wgłębny; symulacja numeryczna

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Engineering Transactions
• Rocznik: 2016
• Tom: Vol. 64, iss. 4
• Strony: 417--424
• Opis fizyczny: Bibliogr. 6 poz., rys., wykr.

Twórcy

autor

Wacławiak K.

• Silesian University of Technology Faculty of Materials Engineering and Metallurgy Institute of Metals Technology Krasińskiego 8, 40-019 Katowice, Poland

Bibliografia

• 1. Wiśniewski T., The influence of the surface condition of pipes recuperators heating furnaces to gas dynamics and heat transfer [in Polish], Hutnik, 1: 16–22, 2006.
• 2. Tomeczek J., Wiśniewski T., Pressure loss in tubular heat recuperators, Gasw¨arme International, 49(4): 4240–4244, 2000.
• 3. Israel R., Rosner D.E., Use of a generalized Stokes number to determine the aerodynamic capture efficiency of non-Stokesian particles from a compressible gas Flow, Aerosol Science and Technology, 2(1): 45–51, 1982, doi: 10.1080/02786828308958612.
• 4. Yilmaz S., Cliffe K.R., Particle deposition simulation using the CFD code FLUENT, Journal of Institute of Energy, 73(494): 65–68, 2000.
• 5. Tomeczek J., Wacławiak K., Two-dimensional modelling of deposits formation on platen super-heaters in pulverized coal boilers, Fuel, 88(8): 1466–1471, 2009, doi: 10.1016/j.fuel.2009.02.023.
• 6. Perez M.G., Vakkilainen E., Hyppanen T., 2D dynamic mesh model for deposit shape prediction in boiler banks of recovery boilers with different tube spacing arrangements, Fuel, 158: 139–151, 2015, doi: 10.1016/j.fuel.2015.04.074.

Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).