An Experimental Examination of the Loss-of-Flow Accident Phenomenon for Prototypical ITER Divertor Channels of<i>Y</i>= 0 and<i>Y</i>= 2

Marshall, Theron D.; McDonald, J.M.; Cadwallader, L.C.; Steiner, D.

doi:10.13182/fst00-a120

Cited by 6 publications

(11 citation statements)

References 3 publications

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“…The heat transfer coefficient in forced flow saturated boiling is estimated by the correlation proposed by Chen [7]: F is the convective boiling enhancement factor and calculated as F = 1.0 for 1/X tt ≤ 0.1 2.35(1/X tt + 0.213) 0.736 for 1/X tt > 0.1 (13) where X tt is the Lockhart-Martinelli parameter and given by where T sat is the wall superheat, P sat is the difference between the saturation pressures calculated from the wall temperature and the fluid temperature and S is the nucleate boiling suppression factor and calculated as Re TP is the two-phase Reynolds number and given by…”

Section: Saturated Nucleate Boilingmentioning

confidence: 99%

“…The swirl tape inserts influence on the fully developed nucleate boiling regime is negligible; however, they considerably increase the critical heat flux [12]. When the cooling channel features a swirl tape insert, swirl tape factors must be applied to the previously described heat transfer correlations that were defined for bare channel tubes [13].…”

Section: Heat Transfer Enhancementmentioning

confidence: 99%

“…For swirl tape tubes the concept of the equivalent hydraulic diameter should be applied to all the previous heat transfer correlations while the concept of the heated diameter should be applied to the energy equation. In this model, the concept of both the hydraulic and heated diameters are used precisely and no other factors implemented in the swirl tape correlations as done in previous work [13]. The equivalent hydraulic diameter takes the following form:…”

Section: Critical Heat Fluxmentioning

confidence: 99%

“…The present model is validated by experiments performed at Sandia National Laboratory by Marshall [13] and [15] for two prototypical International Thermonuclear Experimental Reactor (ITER) divertor channels for both bare channel and swirl tape channel mockups. The thermocouples are located at 0.6 mm depth of the cupper surface for both mockups.…”

Section: Model Validationmentioning

confidence: 99%

“… 15. shows a contour plot of the temperature distribution through the divertor with 10 mm tungsten armour at the end of the VDE.…”

mentioning

confidence: 99%

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