한국원자력학회:학술대회논문집 (Proceedings of the Korean Nuclear Society Conference)
- 한국원자력학회 1998년도 춘계학술발표회논문집(1)
- /
- Pages.483-488
- /
- 1998
A PRESSURE DROP MODEL FOR PWR GRIDS
- Oh, Dong-Seok (Korea Atomic Energy Research Institute) ;
- In, Wang-Ki (Korea Atomic Energy Research Institute) ;
- Bang, Je-Geon (Korea Atomic Energy Research Institute) ;
- Jung, Youn-Ho (Korea Atomic Energy Research Institute) ;
- Chun, Tae-Hyun (Korea Atomic Energy Research Institute)
- 발행 : 1998.05.01
초록
A pressure drop model for the PWR grids with and without mixing device is proposed at single phase based on the fluid mechanistic approach. Total pressure loss is expressed in additive way for form and frictional losses. The general friction factor correlations and form drag coefficients available in the open literatures are used to the model. As the results, the model shows better predictions than the existing ones for the non-mixing grids, and reasonable agreements with the available experimental data for mixing grids. Therefore it is concluded that the proposed model for pressure drop can provide sufficiently good approximation for grid optimization and design calculation in advanced grid development.
키워드