Design of multi-tubular heat exchangers for optimum efficiency of heat dissipation |
| |
Authors: | Bo Wang Geng Dong Cheng Lei Jiang |
| |
Affiliation: | 1. State Key Laboratory of Structural Analysis for Industrial Equipments, Department of Engineering Mechanics , Dalian University of Technology , Dalian, 116023, PR China wangbo@dlut.edu.cn;3. State Key Laboratory of Structural Analysis for Industrial Equipments, Department of Engineering Mechanics , Dalian University of Technology , Dalian, 116023, PR China;4. Design Technology and Solutions , Intel Corporation RA3–254, 2501 NW 229th Avenue, Hillsboro, tOR, 97124, USA |
| |
Abstract: | The optimum design of compact heat exchangers made of a linear metal cellular material is presented. A novel representation of the cylindrical multi-tubular configuration is used. The aim is to maximize the heat dissipation rate while minimizing the prescribed flow pressure by optimizing the multi-tube configuration. The optimum distribution of cellular material for square-cell morphology (cell density and size over given cylindrical cross-section) is found using a structural topology optimization approach. The optimized thermal performance is compared using numerical analysis including both axial temperature fields and variations within the cross-sectional area. The results for the effects of different cross-section shapes, thermal boundary conditions and flow rates are discussed and compared. Interestingly, the present formulation leads to a non-uniform distribution of cellular structures which mimic natural biomaterials. Based on these results, design guidelines for a compact multi-tubular heat exchanger are presented. |
| |
Keywords: | topology optimization multitubular heat exchanger heat dissipation cellular materials monolithic catalyst support concurrent design of material and structure |
|
|