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|Title:||Multiregion Analysis of Conduction and Convective Heat Transfer in a Finite Tube Bundle Reactor (Rod Bundle)|
|Department / Program:||Nuclear Engineering|
|Degree Granting Institution:||University of Illinois at Urbana-Champaign|
|Abstract:||A theoretical investigation has been carried out to determine the temperature fields and the heat transfer rates in various regions of a rod-clustered circular channel. Analytical results for two cases, the thermal entrance region and the thermally developed region, have been presented. In the thermally developed region the continuity of temperature and the heat flux at the interfaces have been considered, and the analysis has been extended to both plug and fully developed laminar flow. The singular solution arising due to the peripheral rods has been obtained using the method of Howland functions.
Also, an approximate expression for the developed laminar flow has been determined using the method of weighted residuals, and its accuracy has been examined analytically. In the entrance region the longitudinal development of the coolant temperature has been studied using the above method. Finally, a criterion for the choice of trial function for the method of weighted residuals has been presented.
The advantage of being able to carry out an extensive parametric survey at a low computational cost on the basis of the analytic solutions obtained in this study is demonstrated.
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1986.
|Date Available in IDEALS:||2014-12-16|
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Dissertations and Theses - Nuclear, Plasma, and Radiological Engineering
Graduate Dissertations and Theses at Illinois
Graduate Theses and Dissertations at Illinois