Tag: HEAT EXCHANGERS

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Visualizing the impact of wind on air-cooled heat exchangers performance

October 13, 2025

Salem Bouhairie, Group Lead Research The performance of air-cooled heat exchangers (ACHE) is prone to the effects of wind. Wind has a greater effect on ACHEs operating in natural draft (buoyancy-driven air flow) than ACHEs operating in forced draft (fan-driven air flow). Subsequently, engineers follow API 661 guidelines that recognize the...
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• XACE
• RTC
• HEAT EXCHANGERS
• API 661
• AIR-COOLED HEAT EXCHANGER
• AIR COOLED

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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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Beyond the Basics: Multi-Objective Optimization for Design of Heat Exchangers

May 21, 2025

Commercial heat exchangers in the process industries are designed according to standards from entities such as TEMA or API. The designer’s goal is to maximize the heat transfer coefficient and minimize cost, area, and pressure drop. However, these objectives often conflict. For example, changing a geometric design parameter such as tube...
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• HEAT EXCHANGERS
• GEOMETRY
• DESIGN

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Insights From the Second Law

January 08, 2024

In the December issue of Hydrocarbon Engineering, Thomas G. Lestina and Kevin J. Farrell examine how using a second-law approach can help to improve the efficiency and environmental impact of process heat exchangers. If you're having difficulty viewing the article above, you can visit this link instead....
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• THERMODYNAMICS
• XCHANGER SUITE
• HEAT EXCHANGERS

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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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RTC update: Improvements to Prototype Test Unit (PTU) expand research potential

September 11, 2023

At our Research & Technology Center (RTC), we perform research that improves the accuracy of our methods and software, as well as contract testing for external clients. We recently used the PTU for turndown and performance testing of thermosiphon reboilers. Upcoming research includes experimental observations of full or partial differential condensation in...
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• THERMOSIPHON REBOILER
• HEAT EXCHANGERS

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A modern approach to characterizing surface roughness

March 08, 2023

Emmanuel Hitimana, Engineer, Research Roughness can be understood as a surface texture or height variation with respect to a perfectly flat or smooth surface. Tube and heat exchanger users are keenly interested in surface roughness because it affects pressure drop and heat transfer, which then impacts the thermal performance and cost...
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• SURFACE ROUGHNESS
• HEAT EXCHANGERS

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Using Vapor Infusion to Maintain Optimal Functionality of Heat Exchangers

October 31, 2022

HTRI staff, Mike Radicone, recently published an article on vapor infusion, an environmentally friendly method that reduces fouling and corrosion in heat exchanger and process equipment that use water as a cooling stream. The use of vapor infusion maintains optimum heat exchanger functionality and cooling water flow by operating the heat...
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• VAPOR INFUSION
• HEAT EXCHANGERS
• FOULING

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Fouling Management Through Digital Transformation

September 30, 2022

HTRI staff Edward Ishiyama, James Kennedy, Simon Pugh, and Hans Zettler recently published an article in the September issue of Hydrocarbon Engineering. This article explores how successful digital transformation is helping ENEOS Group refineries in Japan to eliminate waste, reduce lost time in data processing, and facilitate collaboration between different work...
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• HEAT EXCHANGERS
• SMARTPM
• FOULING

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The color of noise

May 13, 2020

Kevin Farrell, Principal Engineer, Computational Simulation & Validation The arrival of spring in many areas ushers in a welcome variation of color to the brown and gray shades of winter. Colors can lift our spirits from any winter doldrums. Surprisingly, one medium that also offers a spectrum of color—even year round—is...
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• VIBRATION
• HEAT EXCHANGERS

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Attracted to the Physical

September 15, 2016

A recent article in the publication Hydrocarbon Engineering, Attracted to the Physical, by Patrick S. Redmill, Engineer, Software Development, discusses how the attraction to greater physical property accuracy grows stronger as heat exchanger calculations become more rigorous. Illustrated with three case study examples, the article demonstrates how a good physical property...
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• XIST
• PHYSICAL PROPERTIES
• HEAT EXCHANGERS
• HEAT EXCHANGER DESIGN

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