| Title |
Optimization of the Channel of a Plate Heat Exchanger with Ribs |
| Keywords |
Plate heat exchanger ; 판형 열교환기 ; Rib ; 리브 ; Periodic fully developed flow ; 주기적으로 완전 발달한 유동 ; Angle of attack ; 충돌각 ; Optimization ; 최적화 |
| Abstract |
In this paper, the optimum shape and arrangement of ribs in the channel of a plate heat exchanger are studied. The following dimensionless geometric parameters of ribs are selected as design variables: rib height (HR), angle of attack (), rib pitch (PR), rib distance (L) and aspect ratio of rib (AR). The optimization is performed by minimizing the objective function consisting of the Nusselt number and the friction factor. The optimal values of design variables are as follows: HR＝0.263, 0.290, PR＝3.142, L＝3.954, AR=0.342. The pressure drop and the heat transfer of the optimum model, compared to those of the reference model, are increased by 15.1% and 41.6%, respectively. |