الفهرس 
Heat ExchangersOnly 14 pages are availabe for public view
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Abstract
The present work has been carried out with a view to predicting the performance of a shell and tube heat exchanger. Each model for heat exchanger has different assumptions for first model one tube & one pass with tube length 3 meter, was made with 6 different cases(first, second and third cases were parallel flow, the fourth, fifth and sixth cases were counter flow). The second model has 19 tubes with one pass Shell and tube heat Exchangers. (Counter flow), with length 5.85 m. The third model has 64 tubes & one pass with tube length 10.6 meter (parallel flow). The last model has 85 tubes &two passes with tube length 2325mm.The flow and temperature fields inside the shell and tubes are resolved using a ANSYS CFD 17.2. A series of CFD simulations is through a single tube bundle and compared with experimental results. the Realizable 𝐾−Ꜫ model is known for predicting the flow separation better than Standard 𝐾−Ꜫ. The temperature, velocity and efficiency of each model are examined in detail. Each design was studied separately on the basis of the findings, the designs need modifications to improve heat transfer. It is seen that the flow remains parallel to the tubes thus limiting the heat transfer. Approximately, 2/3rd of the shell side fluid is bypassing the tubes and contributing little to the overall heat transfer