Tag: NOZZLES
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TT-1 Beware of large height under nozzle with parallel-cut baffles
January 26, 2017
Component: Xist Applicable to: All supported versions (versions 7.3 and 8) Date posted: 4 January 2008 In cases with parallel-cut baffles, when the height under nozzle lowers the top of a tube bundle below the baffle cut, the accuracy of Xist results is reduced. In such cases, a bundle bypass path...
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TechTip: Self-venting Nozzles in Condensers
January 16, 2017
Self-venting nozzles are often desired in partial or complete condensers. HTRI recommends sizing these nozzles for gravity condensate flow to produce weir-type flow. Xist can help users size self-venting nozzles properly with warning or informative messages; however, certain criteria must be met for the software to complete the necessary calculations. Xist...
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Q11-2 Simulating Nozzle Flow in Spiral Exchangers using CFD
January 16, 2017
Computational fluid dynamics (CFD) analysis was used to calculate the nozzle pressure drop K-values for spiral plate heat exchangers. Results of this analysis resolved the discrepancy between K-values from the Minton method and in PHE-11. The K-values from PHE-11 compared better with the CFD results in the region of Reynolds numbers...
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