» Training case study: Vibration concern in steam generator unit

A TEMA AES exchanger with carbon steel tubes produces 7.5 bar steam on the shell side with a weight fraction vapor of 0.3 at the shell exit. The operator has seen no evidence of tube damage in the operating unit, but the Xist® vibration analysis flags fluidelastic instability (FEI) at the bundle and shell exit, specifically with an FEI ratio of 2.34. HTRI recommends limiting this ratio to 0.8 in Xist to avoid possible FEI tube vibration damage.

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To read the corresponding article comparing HTRI's tube vibration analysis tools, click here.

» New research report reviews lattice Boltzmann method

The lattice Boltzmann method captures the intricacies of more complicated flows, such as solid–liquid phase change, heat transfer enhancements using nanoparticles and metal foams, and bubble dynamics in two-phase flows with a fundamental approach at a mesoscale level. This method may eventually allow HTRI to expand our software and research in these more complex areas. RR-7 Assessment of Lattice Boltzmann Method for Simulating Thermal Hydraulic Phenomena reviews the method and describes its application to several complex heat transfer problems.

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Access to reports is based on the level of membership chosen by your company. Please contact your sales representative or membership@htri.net with any questions.

» HTRI offices closed for holiday

Our offices will be closed May 26, 2025. Emails to Technical Support (support@htri.net) will be monitored and responded to based on urgency.

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

Date: May 21, 2025

Free to HTRI members

Registration deadline: May 16, 2025

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Xace® Workshop

Date: June 23 – 26, 2025

Online with live Q&A sessions

Course fee: US$450

* Early registration deadline: May 19, 2025

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

Date: July 2, 2025

Free to HTRI members

Session targeted for audience in Asia

Registration deadline: June 27, 2025

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* To qualify for the 10% early registration discount, your registration and approved credit card payment must be received and processed by our system by 11:59 PM US Central Time on the early registration date.

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