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Technical Issues
2/2016 pp. 53-59

Analiza numeryczna pracy wymiennika ciepła z awaryjną nieszczelnością

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Heat exchangers belong to the group of devices, whose proper operation is essential for the proper conduct of industrial processes. The growing influence of numerical methods in the design stage of exchanger, allows to optimize their design in terms of efficiency and meet the specified thermal parameters. A relatively new way to use numerical simulation is the study of unsteady heat transfer that characterized their work during failure. The article presents results of numerical analysis of the operation of a hypothetical heat exchanger with emergency leak of one of the coils. The effects of stream loss in the pipe and change of flow dynamics of entire system were taken into consideration. The importance of location of leak on the behavior of heat exchanger was also taken into account. The simulation was performed using the commercial software Autodesk Simulation CFD.

Key words

heat exchangers, emergency leak, numerical calculation


1. Kalinowski, E., Przekazywanie ciepła i wymienniki, Oficyna Wydawnicza Politechniki Wrocławskiej, Wrocław, 1995.

2. Taler, J., Taler, D., Ludowski, P., Measurement of local heat flux to membrane water walls of combustion chamber, Fuel, 2014, 115, pp. 70-83.  

3. Mirandola, A., Stoppato, E., Lo Costo, E., Evaluation of the effects of the operation strategy of a steam power plant on the residual life of its devices, Energy, 2009, 35, pp. 1024-1032.

4. Othman, H., Purbolaksono, J., Ahmad, B., Failure investigation on deformed superheater tubes, Engineering Failure Analysis, 2009, 16, pp. 329-339.

5. Ahmad, J., Purbolaksano, J., Beng, L.C., Failure analysis on high temperature superheater Inconel 800 tube. Engineering Failure Analysis, 2010, 17, pp. 328-333.

6. Ahmad, J., Rahman, M.M., Zahariri, M.H.A., Remesh, S., Hassan, J. Purbolaksono, M.A., 2012. High operating steam pressure and localized overheating of a primary superheater tube, Engineering Failure Analysis, 2012, 26, pp. 344-348.

7. Caputo, C.A., Pelagagge, M.P., Salini, P., Heat Exchange optimizaed design compared with installed industrial solutions, Applied Thermal Engineering, 2015, 87, pp. 371-380.

8. Kan, M., Ipek, O., Gurel, B., Plate heat exchanger as a compact design and optimization of different channel angles, Acta Physica Polonica A, 2015, 12, pp. 49-52.

9. Autodesk, Autodesk Simulation CFD, User Guide, 2012.