• 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...
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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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