Tag: SHELL-AND-TUBE

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Noise, vibration, and … harshness?

December 04, 2023

NVH (noise, vibration, and harshness) is an increasingly important design metric for many commercial products—from vacuum cleaners and dishwashers, to lawnmowers and chain saws, to cars, trucks, and aircraft. Consumers demand a product that performs well but with low "observables." The first two qualities are measureable. A sound power meter can...
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• ACOUSTIC VIBRATION
• XVIB
• XIST
• VIBRATION
• SHELL-AND-TUBE
• HEAT EXCHANGERS

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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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• SMARTPM
• SHELL-AND-TUBE
• PREVIEW

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Baffle design dictates ideal flow

June 11, 2020

Ashley Simmons, Engineer, Technical Support Each heat exchanger has unique requirements due to process constraints, site limitations, or cost concerns. The fundamentals of good design apply to every variety of exchanger. The primary goal of every designer is to optimize exchanger design for the most effective heat transfer possible. One of...
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• XIST
• WEBINAR
• SHELL-AND-TUBE
• BAFFLE

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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 2026 projects (Updated: August 27, 2024) Feedback on FY 2025 Proposed Technical Operating Plan Technical...
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• SHELL-AND-TUBE

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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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• XIST
• CFD
• 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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• EDUCATIONAL
• LEVEL 2
• REFINERIES
• SHELL-AND-TUBE

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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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• SHELL-AND-TUBE
• CFD

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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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• XIST
• SHELL-AND-TUBE
• NTIW
• CFD

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Research Update: Predicting Phase Separation in Shell-and-Tube Heat Exchangers

January 16, 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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• RESEARCH
• SHELL-AND-TUBE
• SHELLSIDE

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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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• SHELLSIDE
• SHELL-AND-TUBE
• CFD
• BAFFLE

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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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• SHELL-AND-TUBE
• CFD
• BAFFLE

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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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• SINGLE-PHASE
• SHELL-AND-TUBE
• IMPINGEMENT RODS
• CFD

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