KAPALI TERMOSİFON DÖNGÜSÜNDE AKIŞ VE ISI TRANSFERİ ÜZERİNE PARAMETRİK ÇALIŞMA
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In this study, closed loop rectangular thermosyphon was studied parametrically. Two-dimensional numerical model was solved using uniform surface temperature boundary condition in the vertical heated and cooled sections of the thermosyphon loop. In two-dimensional model, results for laminar flow case were obtained by solving the momentum and the energy equations through the SIMPLEX Algorithm. Used parameters are Prandtl numbers, Grashof numbers and H/D which is obtained from the elevation difference between the mid-point of heated and cooled sections divided by inside diameter of the thermosyphon pipe. In addition, a correlation for the Nusselt number of the thermosyphon loop was developed. The dependence of this correlation on Grashof and Prandtl numbers was determined.