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Advancing electric process heater technology at HTRI

November 09, 2026

Ashley Hinojosa, Lead Project Engineer, Engineering Services Since our founding, HTRI hasn't stopped answering questions from industry. As the landscape of industrial technology has shifted, HTRI has continued to focus our research and technology on the best ways to serve our members. The green and renewable energy push over the last...
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• XIST
• XCHANGER SUITE
• RTC
• ELECTRIC HEATER
• CFD

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Visualizing the impact of wind on air-cooled heat exchanger 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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TE-7 Review of Intube Static Mixers for Heat Transfer Applications

April 23, 2024

Inline static mixers promote the radial spreading of momentum and heat and are thus useful in enhancing heat transfer, especially in viscous laminar flows. After a brief  review of the physics of plain tube laminar flow heat transfer, this report includes  classifications of these mixers based on their construction and presents some...
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• VISCOUS
• TUBE INSERT
• RTC
• ENHANCEMENTS
• ENHANCED SURFACES
• CFD

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Research Update: Natural-draft Testing on Air-cooled Heat Exchangers

December 12, 2019

To ensure reliable data collection, HTRI always seeks to improve test methods and incorporate innovative techniques. Recently installed at the Research & Technology Center, the Air-cooled Unit (ACU) has motivated us to develop better ways of collecting airside measurements for both forced- and natural-draft testing. Accurate measurements for natural-draft (fans off)...
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• RTC
• RESEARCH
• AIR COOLED

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Research Update: Design and Construction of the Rotating Fouling Unit

January 16, 2017

HTRI currently runs fouling experiments on the High Temperature Fouling Unit (HTFU) which recirculates a 27 liter sample of crude for periods up to one month. As we plan to expand our crude oil fouling test program, we are investigating alternate test methods to screen crude oil fouling with smaller sample...
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• CFD
• FOULING
• HTFU
• RESEARCH
• RFU
• RTC

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