Mathematical modelling of tube heat exchangers with complex flow arrangement

• Autorzy: Taler D. , Trojan M. , Taler J.
• Języki publikacji: EN

Abstrakty

EN

General principles of mathematical modelling of transient heat transfer in cross-flow tube heat exchangers with complex flow arrangements which allow a simulation of multipass heat exchangers with many tube rows are presented. First, a system of differential equations for the transient temperature of both fluids and the tube wall with appropriate boundary and initial conditions is formulated. Two methods for modelling heat exchangers are developed using the finite difference method and finite volume method. A numerical model of multipass steam superheater with twelve passes is presented. The calculation results are compared with the experimental data.

Słowa kluczowe

EN

heat tube exchanger; modelling; complex flow

PL

wymiennik ciepła; przepływ; modelowanie

• Wydawca: Komitet Inżynierii Chemicznej i Procesowej Polskiej Akademii Nauk
• Czasopismo: Chemical and Process Engineering
• Rocznik: 2011
• Tom: Vol. 32, nr 1
• Strony: 7--19
• Opis fizyczny: Bibliogr. 8 poz., rys.

Twórcy

autor

Taler D.

autor

Trojan M.

autor

Taler J.

• Cracow University of Science And Technology (AGH), Department of Power Energy Systems and Environment Protection, Faculty of Mechanical Engineering And Robotics, Cracow, Poland

Bibliografia

• 1. Hewitt G. F., Shires G. L., Bott T.R., 1994. Process heat transfer, CRC Press, Boca Raton.
• 2. Kröger D. G., 1998. Air-cooled heat exchangers and cooling towers, Department of Mechanical Engineering, University of Stellenbosch, Matieland, South Africa.
• 3. Kuznetsov N. V., Mitor V.V., Dubovskij I.E., Karasina E.S. (Eds.), 1973. Standard methods of thermal design for power boilers, Central Boiler and Turbine Institute, Energija, Moscow (in Russian).
• 4. Rayaprolu K., 2009. Boilers for power and process, CRC Press, Boca Raton.
• 5. Stultz S.C., Kitto J.B. (Eds.), 1992. Steam. Its generation and use, The Babcock & Wilcox Company, Fortieth edition, Barberton, Ohio, USA.
• 6. Taler D., 2009. Dynamics of tube heat exchangers, University of Science Publishing House (UNWD AGH), Cracow (in Polish).
• 7. Taler D., Taler J., 2009. Simplified analysis of radiation heat exchange in boiler superheaters. Heat Transf. Eng., 30, 661-669, DOI: 10.1080/01457630802659953
• 8. Taler J., Trojan M., Taler D., 2009. Computer system for fouling assessment in coal-fired utility boilers. Arch. Thermodyn., 30, 59–76.