000 | 01770aab a2200205 4500 | ||
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008 | 231220b1989 |||mr||| |||| 00| 0 eng d | ||
022 | _a0017-9310 | ||
100 |
_aKim, Sung-Ho. _9745980 |
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100 |
_aEl-Genk, Mohamed S. _9865360 |
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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 |
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650 |
_aow Flow _9879371 |
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650 |
_aWater _964859 |
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650 |
_aRod Bundles _9682054 |
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773 | 0 |
_dNew York, U.S.A : Pergamon Subsidiary of Elsevier Science & Technology _x00179310 _tInternational Journal of Heat and Mass Transfer |
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856 | _uhttps://www.sciencedirect.com/science/article/pii/001793108990032X | ||
942 |
_2ddc _n0 _cART _o14993 _pMr. Muhammad Rafique Al Haj Rajab Ali (Late) |
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999 |
_c814540 _d814540 |