000 01770aab a2200205 4500
008 231220b1989 |||mr||| |||| 00| 0 eng d
022 _a0017-9310
100 _aKim, Sung-Ho.
_9745980
100 _aEl-Genk, Mohamed S.
_9865360
245 _aHeat Transfer Experiments for Low Flow of Water in Rod Bundles
300 _a1321-1336 p.
520 _aHeat transfer experiments are conducted for fully developed forced and natural flows of water through triangularly arrayed, seven uniformly heated rod bundles with P/D = 1.25, 1.38 and 1.5. For forced circulation experiments. Re ranges from 80 to 50000 and Pr from 3 to 8.5; while in natural circulation. Re varies from 260 to 2000, and Ra, from 8 × 106 to 2.5 × 108. The forced flow data fall into two basic flow regimes : turbulent and laminar flow. At the transition between these regimes, ReT, which varies from 2200 for P/D = 1.25 to 5500 forP/D = 1.5, increases linearly with P/D. The turbulent heat transfer data is in good agreement (±15%) with Weisman's correlation, designed for fully developed turbulent flow in rod bundles at Re > 25 000. However, the laminar flow data shows the dependency of Nu on Re to be weaker than for turbulent flow. Natural circulation data indicates that rod spacing insignificantly affects heat transfer; for P/D = 1.38 and 1.5, Nu is correlated as Nu = 0.272.Ra0.25q.
650 _aHeat Transfer Experiments
_9879370
650 _aow Flow
_9879371
650 _aWater
_964859
650 _aRod Bundles
_9682054
773 0 _dNew York, U.S.A : Pergamon Subsidiary of Elsevier Science & Technology
_x00179310
_tInternational Journal of Heat and Mass Transfer
856 _uhttps://www.sciencedirect.com/science/article/pii/001793108990032X
942 _2ddc
_n0
_cART
_o14993
_pMr. Muhammad Rafique Al Haj Rajab Ali (Late)
999 _c814540
_d814540