Category: SHELL-AND-TUBE
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Educational: Shell-and-tube Heat Exchangers in Refineries
January 16, 2017
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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Research Update: Predicting Phase Separation in Shell-and-Tube Heat Exchangers
January 15, 2017
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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STG-21 Computational Simulation of Fluid Flow, Heat Transfer, and Temperature-induced Mechanical Stress in a Shell-and-tube Heat Exchanger
July 21, 2017
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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Technical Committee Portal
November 01, 2016
The documents on this page are for Technical Committee use only. Please do not distribute. Technical Committee Handbook Technical Committee Member Bios Technical Committee Nominating Charter Technical Committee Future Planning HTRI Idea Pool - FY 2023 projects Technical Operating Plan FY 2022 Mid-year Updates Technical Progress Reports FY 2022 Mid-Year...
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Sneak Preview: SmartPM™ 5.0
March 24, 2021
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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Q7-4 CFD Study of Inlet Zone Performance: Parallel vs. Perpendicular Segmental Baffle Cuts
January 16, 2017
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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S-SS-3-19 Improved Pressure Drop Method for Helical Quadrant Baffle Exchangers
January 16, 2017
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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S-SS-3-25 Analysis of NTIW shellside performance using CFD and Xist
January 16, 2017
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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S-SS-3-27 A Review of the A-stream Model of the Stream Analysis Method
January 16, 2017
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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STG-13 Computational Fluid Dynamics Study of Impingement Plates
January 16, 2017
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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