Category: SHELL-AND-TUBE

Oil refineries fractionate components by exploiting their boiling point differences. This process is energy intensive, requiring the oil to be heated to temperatures up to 750 °F. Heat exchangers are critical to recovering the heat input and to making the process more efficient and economical. Because of their key role in...
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Recent experiments performed in the Multi-purpose Visualization Unit (MVU) analyzed the dependence of shellside phase separation on exchanger geometry. During this webinar, we discuss the variation of the stratified to non-stratified transition boundary with exchanger geometry, applicable over a wide range of flow regime parameters....
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We completed a multiphysics computational simulation of a shell-and-tube exchanger, where simultaneous fluid flow and heat transfer of both fluid streams occurred. Temperature-induced mechanical stress also acted on the solid structures. A weak coupling of a finite-volume CFD Navier-Stokes model with a finite-element computational solid mechanics model underlies the multiphysics simulation....
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The documents on this page are for Technical Committee use only. Please do not distribute.   Technical Committee Handbook (under revision) Technical Committee Member Bios Technical Committee Nominating Charter Technical Committee Future Planning FY 2021 TOP Technical Progress Reports FY 2021 Mid-year Technical Progress Report Technical Committee Meeting April 8, 2021...
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SmartPM™ is HTRI’s performance monitoring and predictive maintenance software for shell-and-tube exchanger networks.  With this software, you can rapidly build complex digital twin models, re-using any available Xist® files connect to plant data sources such as OSIsoft PI System™ and synchronize with Xist to populate with real plant performance data, geometry, and stream properties run either...
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Under contract from HTRI, university researchers simulated the fluid flow and heat transfer characteristics in the inlet zone of a shell-and-tube exchanger using computational fluid dynamics (CFD). Results revealed that the ratio of heat transfer to pressure drop for parallel baffle cut orientation was as low as 71 percent of that...
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A shellside helical flow path in a shell-and-tube exchanger can provide a number of distinct advantages over the reversing, serpentine flow path of conventional segmental baffles; however, current open literature prediction methods do not provide the confidence engineers need to make sound design decisions. Several fundamental geometric parameters either are not...
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Using computational fluid dynamics (CFD) and Xist, HTRI simulated three configurations of no-tubes-in-window (NTIW) bundles in shell-and-tube heat exchangers. Our analysis of the trends in pressure drop and heat transfer underscores the importance of window friction and window momentum losses, even without tubes in this region, as well as the existence...
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After a brief overview of the evolution of the Stream Analysis Method, we use CFD simulation results to compare A-stream, tube-to-baffle leakage flow geometry and pressure drop models. We propose a modified A-stream pressure drop model for the refactored software that, contrary to current usage in HTRI Xchanger Suite 7, calculates...
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The results of a computational fluid dynamics (CFD) study of impingement devices for inlet nozzles on shell-and-tube heat exchangers reveal the deleterious effects of increased velocity and pressure drop for a number of configurations. Simulations of entry flows with round and square solid plates as well as with rod grids were...
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