Recent HTRI News

  • Getting Started: Specifying Fluid Properties in Xchanger Suite

    November 19, 2020
    Two important considerations in heat exchanger design and analysis with Xchanger Suite are defining a heat exchanger’s geometry and specifying fluid properties. This webinar focuses on fluid property specification. We will provide an overview of the available options in Xchanger Suite, illustrate these options using simple examples, and discuss HTRI’s recommendations and guidelines. ...
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  • BT-42 Improved heat transfer methods for tubeside falling film evaporators

    November 17, 2020
    HTRI collected falling film evaporation data for two pure components and three mixtures in a vertical tube. Current falling film methods in Xist® 8.2 underpredict most of the measured heat transfer coefficients. Based on the latest data, we have improved our heat transfer methods, including a vapor-shear enhancement factor, a new mixture correction factor...
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  • Non-Newtonian fluids: From concepts to modeling

    November 09, 2020
    Siddharth Talapatra, Group Lead, Research   Most of us, engineers and non-engineers alike, tend to think we can tell a "solid" from a "fluid". But how do we define the characteristic difference? Most physics textbooks use the concepts of "elastic/plastic deformation" to define solids and "viscous deformation" to define fluids. In...
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  • FY 2020 Report to Stockholders

    October 20, 2020
    COVID-19 continues to impact everyone to some degree. The health and safety of you and our staff remains a top priority, prompting flexibility and changes in business operations. We cannot come together to deliver the HTRI Stockholders Report in-person; however, we want our members to still receive the annual update on...
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  • BT-41 Pressure drop method for tubeside falling film evaporators

    October 19, 2020
    HTRI collected data for falling film evaporation in a vertical tube using five test fluids. This report discusses available pressure drop methods and correlations for intube falling film evaporators and investigates correlations for liquid film thickness and void fraction. The report also documents an improved pressure drop method based on the...
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  • How Marangoni stress affects falling films

    October 09, 2020
    LiDong Huang, Principal Engineer, Experimental Research   Anyone who drinks wine may notice that droplets (or tears) of wine form on the inside wall of a wine glass. But what causes this phenomenon? The short answer: it is all about Marangoni stress and evaporation, both of which are linked to falling...
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  • Getting Started: Building Your First Case in Edgeview

    September 16, 2020
    Edgeview® is a new software tool that analyzes heat exchanger performance across a range of operating data. It is most powerful when used in conjunction with Xist®. This webinar provides an overview of the Edgeview interface, demonstrates how to set up a case and perform an analysis, and offers guidance on the reports...
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  • Vapor Infusion Applications

    September 02, 2020
    Vapor Infusion Applications Vapor Infusion Overview Applications Studies Contact Us Drill ships and offshore rigs Our vapor infusion system was installed on both the thruster and main engine coolers of a semi-submersible offshore drilling ship. Three months later, engineers determined that the thruster performed better during pressure drop tests with high...
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  • Vapor Infusion Studies

    September 02, 2020
    Vapor Infusion Studies Vapor Infusion Overview Applications Studies Contact Us The benefits of our vapor infusion system have been proven in studies conducted at various universities, commercial applications, and with the United States Navy. Positive results include significant decrease in the need for heat exchanger cleanings increased time between cleanings dramatic...
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  • Sneak Preview: Xchanger Suite 8.2

    September 02, 2020
    Xchanger Suite® 8.2 streamlines your workflow and offers you more insight into your exchanger designs. This version incorporates the latest design guidance about no-tubes-in-window (NTIW) baffle configurations and annular distributor sizing in shell-and-tube exchangers, as well as the most effective way to model one-fan-off operation in air-coolers. New warning messages notify you...
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