Tag: KETTLE REBOILER
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Research Update: Modeling Flat Bundles in Kettle Reboilers
January 15, 2017
Engineers may design flat bundles in kettle reboilers by removing tuberows from round bundles to create a larger disengagement space. This webinar discusses application of the kettle reboiler circulation boiling model to flat bundles. It reviews calculations for the static driving head and maximum heat flux for flat bundles. We also...
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TechTip: Kettle Entrainment Prediction
January 15, 2017
After discussing an overview of kettle reboilers and the fundamentals of entrainment, this webinar reviews Xist input and output as well as design considerations that affect kettle entrainment. By working through an example case, this webinar teaches that accurate prediction of liquid entrainment is crucial for some applications, that liquid carryover...
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TechTip: Modeling and Designing Non-round Bundles for Kettle Reboilers
January 15, 2017
This webinar discusses the advantages of flat-top bundles, reviews the implementation of the circulation boiling model in Xchanger Suite prior to version 7, and discusses the improvements in version 7....
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BK1-15 Applications of Ideal Bundle Boiling Methods to X-shell and Kettle Reboilers
June 30, 2017
Flow boiling prediction methods were recently improved using data collected from ideal crossflow bundles. When applied with accurate property models, these modified methods also improve prediction of X‑shell and kettle reboiler heat transfer measurements. Future implementation of the modified methods in Xchanger Suite should improve the accuracy of flow boiling predictions;...
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BK1-14 Heat Transfer of Kettle Reboiler Tubes Above the Liquid Level
January 16, 2017
This report reviews literature and HTRI kettle reboiler data obtained when the liquid level was below the top of the tube bundle. We propose both a method to predict the two-phase jet height above the liquid level and an algorithm for predicting the heat transfer coefficient above the liquid level....
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BK1-11 Two-Dimensional CFD Simulations of Kettle Reboilers
January 16, 2017
To gain further insight into kettle reboiler operation and improve Xist® models, we simulated several kettle reboilers in two dimensions using CFD. The two-phase simulation results show good agreement with pressure drop and vapor volume fraction measurements from the literature. However, recirculation ratios calculated from the CFD results are substantially greater...
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BK1-12 Three-Dimensional CFD Simulations of Kettle Reboilers
January 16, 2017
Three-dimensional computational fluid dynamics (CFD) simulations of experimental kettle reboiler slices from the literature, as well as from the HTRI kettle reboiler, allow examination of fluid flow behavior on a fine spatial scale—significantly beyond the resolution of available experimental measurements. Interestingly, our simulations of kettle slices yield recirculation ratios that agree...
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