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Xist Workshop

Course Fee: US$450

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This workshop is devoted to the shell-and-tube exchanger geometries handled only by Xist. The course focuses on the extensive options available in Xist and how you can use these methods effectively to solve several example problems. You will leave the class knowing how to take full advantage of the features this robust tool offers.

Key Topics

  • Overview of Xist interface and the benefits of HTRI methods
  • Process specifications rules for rating, simulation, and design
  • Guidelines for specifying fluid properties
  • Description of Xist geometry input parameters and their defaults
  • Interpretation of Xist outputs for validation of unit performance

Suggested Participants

Designers of shell-and-tube heat exchangers and process engineers who evaluate their performance

HTRI Software

This course will make use of the following HTRI software: Xchanger Suite® component Xist®. All training materials are based on the current software version.

Course Credits: 6 hours (PDH/CEU)


Outline

  1. Introduction
    • Applications of Xist 
    • Overview of thermal performance prediction

  2. Process Conditions 
    • Case mode selection 
    • Process specification

  3. Fluid Properties
    • Property input options in Xist 
    • Guidelines for fluid property specification 

  4. Geometry
    •  Key geometry input features in Xist

  5. Program Outputs
    • Output Summary, Runtime Messages, and other reports

Currently Scheduled


Upcoming Instructors

  • Samuel Bajomo


  • Senior Heat Transfer Specialist, Engineering Services, completed his BEng, MSc in Mechanical Engineering at University College London, London, United Kingdom (UK), majoring in Materials Science and Structural Mechanics. He began his career with MW Kellogg working on mechanical design of pressure vessels and heat exchangers and later transitioned into the heat transfer group as Principal Heat Transfer Engineer. In 2012 he moved to Wood Plc, London, UK where he oversaw the thermal and mechanical design of heat exchangers and fired equipment for several major oil and gas and petrochemical projects. His experience spans front-end engineering design (FEED), requisition, detailed engineering, and oversight of equipment manufacture. Bajomo then operated as an independent heat transfer consultant, working with equipment manufacturers and end-users on a wide variety of troubleshooting and design verification projects. His exchanger design and practical industry experience brings a uniquely qualified contractor’s perspective to HTRI’s Engineering Services team. Bajomo also currently serves on the board of the Institution of Mechanical Engineers (IMechE), Pressure Systems Group, and is a CEng MIMechE.

  • Noah Bittner


  • Data Systems Engineer, graduated with a BS in Mechanical Engineering from Texas A&M University, College Station, Texas, USA. As a test engineer at HTRI, Bittner performs experimental tests, calibrations, and data analyses. He specializes in data acquisition (DAQ) and analysis, including configuring DAQ systems, writing control and acquisition code using NI LabVIEW™, and analyzing test data with Python®. His efforts contribute to the improvement of efficiency and quality of HTRI’s research data at the Research & Technology Center.

  • Elijah Crosby


  • Test Engineer, Research & Technology Center, graduated with a BS in Ocean Engineering from Texas A&M University, College Station, Texas. While there, he worked in the Texas A&M Utilities and Energy Services, contributing research to projects related to thermo and fluid dynamics, heat transfer, corrosion prevention, and maximizing efficiency in chillers and boilers. Since joining HTRI, Crosby performs experimental tests in multiple areas of research, assists with correlation development, and maintains data acquisition and calibration equipment.

  • Sean Hennigan


  • Principal Engineer, Engineering Services, holds BEng and MEng degrees in Chemical Engineering from the University of Bradford (UK), including internships in France from 1988 – 1990. He has spent 33 years at the Saltend chemicals manufacturing site in Hull, working first for BP Chemicals and since 2021 for INEOS Acetyls. His global support work spans modeling, analysis, design, operations, turnarounds, commissioning, troubleshooting, technology development, intellectual property, and training. In 2008 he became BP Chemicals’ Separations and Heat Transfer Advisor, specializing in ASPEN simulation and Xchanger Suite®, delivering thermal design and troubleshooting for hundreds of heat transfer applications. At INEOS, his role expanded to Process Engineering Advisor, adding CFD and reliability analysis. He joined HTRI in 2026. Hennigan has been a chartered engineer since 1998 and an IChemE Fellow since 2015.

  • Holly Huellemeier


  • Engineer, Research, earned her BS and PhD in Food, Agricultural, and Biological Engineering with a specialization in Food Engineering from The Ohio State University, Columbus, Ohio (OH), USA. Her dissertation research focused on fouling and cleaning in ultra-high temperature (UHT) milk processing. During her graduate studies, she lectured on Heat and Mass Transfer in Biological Systems for undergraduate students and instructed short courses on food processing technologies and clean-in-place (CIP) for the FDA, state inspectors, and industry representatives. Prior to joining HTRI, she worked as a post-doctoral researcher at the Technische Universität Braunschweig, Braunschweig, Germany in the Institute for Chemical and Thermal Process Engineering (ICTV) where she researched the mechanisms of fouling during emulsion polymerization. At HTRI, Huellemeier is involved in cooling water fouling research, non-Newtonian flow, and heat exchanger applications in the food industry.