Tag: SEAL STRIPS

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HTRI advances seal strip analysis for X‑shell heat exchangers

October 13, 2025

Brandon White, Engineer, Experimental Research HTRI has launched a new experimental program at the Research & Technology Center (RTC), focusing on seal strip performance on shellside flow in shell-and-tube heat exchangers. While current methods are based on TEMA E-shell test data, HTRI is expanding the methodology to unbaffled TEMA X-shell configurations,...
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• SHELL-AND-TUBE
• SEAL STRIPS
• RTC
• RESEARCH
• HEAT EXCHANGERS
• CFD

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TT-33 Peripheral bypass sealing in shell-and-tube heat exchangers

September 15, 2025

Component: Xist Date posted: 15 September 2025 In shell-and-tube heat exchangers, mechanical clearances between bundle components and between the baffle and shell are essential for bundle fabrication, insertion, and removal. These clearances are standardized in Section 5 of the TEMA Standards [1]. The resultant bundle-to-shell radial clearance (i.e., the gap between the...
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• SHELL-AND-TUBE
• SEAL STRIPS
• MECHANICAL DESIGN
• CFD

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TT-31 Beware of flow obstructions in inlet and outlet regions

February 14, 2023

Component: Xist, Xvib Date posted: 14 February 2023  Flow obstructions in the inlet and outlet regions can invalidate the Xist bundle entrance and exit velocities and thus impact the rho-V2 calculations. The Xist vibration analysis for shell and bundle entrance and exit areas is performed using the TEMA RGP-RCB-4.6.2 definitions. The...
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• SEAL STRIPS
• VIBRATION
• MECHANICAL DESIGN
• FLOW-INDUCED VIBRATION
• FLOW DISTRIBUTION
• XVIB
• XIST
• TECHTIP

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S-SS-3-28 Optimal Application of Shellside Sealing Devices

January 16, 2017

This report documents two approaches to analyze the performance of different sealing devices. The first approach examines an exchanger with a fixed sealing device count and varied baffle spacing. The second approach considers an exchanger with fixed shellside geometry but different sealing device types and arrangements. Comparisons are made between experimental...
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• XIST
• SEAL STRIPS
• CFD

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Research Update: Sealing Device Application

January 16, 2017

During this webinar, we discuss the basics of sealing devices, including common practices and design guidelines. Further, we review the basic flow resistance equation for sealing strips used in Xist® Version 7 and compare the measured performances of HTRI research-scale heat exchanger using sealing strips to CFD and Xist predictions....
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• CFD
• RESEARCH
• SEAL STRIPS
• XIST

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