Tag: CONDENSERS

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AC-21 Development of Enhancements for Air-cooled Condensers

February 25, 2025

Under the sponsorship of the RAPID Institute, HTRI investigated the use of fluttering reed and acoustic actuation technologies to enhance the performance of air-cooled condensers. Performed on a “radiator-sized” brazed plate-fin test exchanger in the Scaled-down Air Cooler Unit (SACU), testing demonstrated that the fluttering reed technology enhances heat transfer despite imperfect flow passages. While...
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• ENHANCEMENTS
• CONDENSERS
• AIR-COOLED HEAT EXCHANGER

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HTRI Training: A Global Success Story

February 11, 2025

Over the past year, HTRI Training has been well received, engaging over 900 users across the globe. We conducted 14 online workshops, 13 live webinars, 9 in-person events (in China, Europe, Japan, Korea, and US), and 6 sessions for individual companies (in Australia, Canada, India, Spain, and US). Click images to enlarge...
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• WORKSHOP
• TUTORIAL
• SHORT COURSE
• ELEARNING
• XPHE
• XIST
• XFH ULTRA
• XACE
• WEBINAR
• SHELL-AND-TUBE
• REBOILERS
• CONDENSERS
• AIR-COOLED HEAT EXCHANGER

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CG-13 Modeling Spray Condensers

December 20, 2023

This report reviews and evaluates literature methods for modeling spray condensers. It discusses droplet size, distribution, motion, and mass and heat transfer in a hot vapor stream. The methods in the literature are sufficient for modeling spray condensation of a single component without a noncondensable gas. Limited research on spray condensation of...
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• ENTRAINMENT
• DESIGN
• CONDENSERS

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Case study: Reducing shellside maldistribution in a condenser

October 16, 2018

Summary An engineering, procurement, and construction company asked HTRI to investigate methods—constrained by permissible pressure drop—to mitigate shellside flow maldistribution for an X-shell condenser, using cold seawater on the tube side to condense an off-gas on the shell side. Challenge Determine optimal geometric design modifications that minimize maldistribution and potential structural...
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• XIST
• MALDISTRIBUTION
• CONDENSERS
• CASE STUDY
• CFD

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TT-7 Model flooding for horizontal tubeside condensers

January 26, 2017

Component: Xist Date posted: 7 October 2008 Although Xist does not include an option to specify the flooded condensate level for horizontal tubeside condensers, you can use Xist results to determine the flooded condensate level in the channel head using only one additional calculation. The figure below shows the tube layout...
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• TECHTIP
• FLOODING
• CONDENSERS

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TechTip: Momentum Recovery in Tubeside Vacuum Condensers

February 01, 2017

Traditionally, for tubeside vacuum condensers, designers attempt to ensure that the velocity profile through the exchanger decelerates from the inlet nozzle to the outlet nozzle. Momentum recovery occurs with a reducing velocity profile throughout an exchanger. If correlations do not account for momentum recovery in the inlet and outlet header of...
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• CONDENSERS
• TECHTIP
• VACUUM
• XIST

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Educational: Introduction to the Design and Evaluation of Condensers in Industrial Applications

January 16, 2017

Condensers are widely used in many industries from chemical processing to power generation. This webinar describes common designs for condensers and identifies how they are used in industry. We will also discuss challenges engineers face in designing and rating condensers....
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• CONDENSERS
• EDUCATIONAL

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Is My Design OK? Modeling Air-Cooled Condensers with Subcooling

January 16, 2017

Subcooling is often required for air-cooled condensers. This webinar will address common technical support questions such as – how many tubes and passes are needed to subcool sufficiently? how is phase separation modeled? what are the best modeling guidelines for Xace®? – and provide HTRI's recommendations. Attending this webinar will help...
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• AIR COOLED
• CONDENSERS
• DESIGN
• SUBCOOLING
• XACE

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TechTip: Modeling Subcooling in Horizontal Condensers

January 16, 2017

In horizontal condensers, flashing sometimes occurs downstream in the condensate discharge system. Incorporating a certain amount of subcooling may ensure that flashing does not occur. This webinar reviews HTRI’s subcooling and nozzle-sizing recommendations for condenser design and presents a method for calculating the condensate height in partially flooded units. The webinar...
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• CONDENSERS
• SUBCOOLING
• TECHTIP

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