cfdaDetermination of the local heat flux in condensation
experiments反省的意思
期刊名称： Experimental Heat Transfer
作者： Kuhn, S. Z.,Peterson, P. F.,Schrock, V. E.
年份： 1996年
期号： 第2期
conversation关键词： solar radiation;solar constant;extraterrestrial radiation;bright sunshine
hours;regression constants;declination;latitude;sunt hour angle
摘要：This article prents a novel method for determining the local heat flux in heated tubes. The technique was applied to a condensing test ction to investigate the in-tube local condensation heat transfer, using a jacket pipe to create an
vicp>grelideannulus for coolant, with thermocouples mounted on the annulus inner and outer walls. Bad on the - turbulence model, coolant temperature-profile shape factors were calculated to provide a matrix of profile factors. The local coolant bulk
forgiventemperature could then be calculated from the measured temperatures on both annulus walls, and coolant flow rate. The local heat fluxes were then determined
xfactor>period>troy jacksonfrom an energy balance using a statistically lected fit of the coolant bulk
temperature data. The new method improves experimental accuracy significantly compared to other techniques.
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