• Getting Started: Building Your First Case in Xfh Ultra

    October 20, 2022
    Are you ready to build your first case in Xfh® Ultra? This webinar will discuss navigating the Xfh Ultra interface and identify the available options for modeling a fired heater in HTRI’s general purpose fired heater program. After the initial discussion, we will work through an example case to demonstrate how...
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  • Sneak Preview: Key Features in Xfh Ultra 3.0

    April 26, 2022
    Xfh® Ultra, HTRI’s modeling software for fired heaters, has a user-friendly interface that allows you to quickly set up and run your fired heater cases. Xfh Ultra uses tubeside calculations, backed by HTRI’s extensive research on single-phase and two-phase boiling, to maximize the performance of fired heaters.  In this webinar, we review...
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  • Sneak Preview: Xfh Ultra 2.0

    August 12, 2019
    In this webinar, we introduce Xfh® Ultra 2.0 and discuss its new capabilities. Some of the key points include: Ability to handle multiple fireboxes sharing a common convection section Inclusion of external piping; such as, transfer lines and cross-overs Steam injection Arbor coils After the initial discussion, we will use a case study to...
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  • Xfh Ultra Future Plans

    April 11, 2018
    In Xfh Ultra, HTRI wanted to create a fast, accurate, and easy-to-use fired heater design tool. A key part of our development process has been to solicit feedback from you and others in industry through surveys, user interface testing, and in-person conversations at events. Your feedback on Version 1.0 has given...
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  • FH-5 Fired Heater Research: Two-phase Flow in Vertical Serpentine Loop

    November 03, 2017
    Adiabatic air-water studies were completed in a transparent vertical serpentine loop with a 12.7-cm internal pipe diameter and six vertical upflow and downflow sections with straight lengths exceeding 6 m. Liquid holdup in the vertical runs tends to dominate the overall pressure drop. This study focuses on flow visualization and pressure...
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