Rate, simulate, and design plate-and-frame heat exchangers

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Xphe® is an incremental program that contains HTRI’s latest pointwise methods based on literature and proprietary experimental data. The heat transfer and pressure drop correlations are continually improved as a result of our ongoing research. 

As a module in Xchanger Suite®, Xphe lets you quickly transfer applicable case data to other components like Xist® or Xace®.


  • Handles virtually any plate-pack arrangement.
  • 2D incrementation calculates localized profiles for heat transfer and pressure drop.
  • Detailed output reports provide overall and localized results.
  • Extensive visualization tools show exactly how the exchanger is performing.
  • Integrated physical property system eliminates requirement for additional property generation software. Xchanger Suite includes VMGThermo™, an extensive and rigorous fluid physical property generator from Virtual Materials Group, Inc.
  • Includes built-in interface to most process simulators.
  • Can be embedded as a unit operation in any process simulator supporting CAPE-OPEN.
  • Both input and output can be displayed in multiple unit sets, including user-defined sets. Dynamic display of values in all unit sets. 
  • Session view allows tracking and retrieval of all runs made during a session. 
  • Includes live configuration drawing for easy specification of complex flow arrangement. 
Xphe Geometry
Input panel to define flow configuration of hot/cold streams.

Geometry Specifications

  • Herringbone plates with chevron angles from 0 to 90 degrees
  • Built-in databank of plate geometries from multiple vendors
  • Custom plate geometries defined and saved for future use
  • One to six passes for each fluid
  • Cocurrent or countercurrent flow in channels
  • Up to five different plate types per plate pack
  • Single or multiple packs in series

Calculation Features

  • Rigorous heat transfer and pressure drop calculations using a 2D incrementation scheme that divides the exchanger into a large number of zones
  • Flexible process input allowing specification of known process information (temperature, weight fraction vapor, and/or flow rates) with the program calculating missing information based on energy balance
  • Three modes: rating (known duty and geometry), simulation (unknown duty and known geometry), and design (known duty and unknown geometry)
  • Built-in port maldistribution model for calculating flow in each channel
  • Optional specification of heat transfer coefficients and safety factors
  • Support for non-Newtonian process fluids
Xphe Design
Display of alternate geometries for design of plate-frame exchanger.

Design Tools

  • Classic design mode to automatically determine pack configuration, including number of hot/cold passes and required number of plates
  • Grid design option to vary geometry over user-specified ranges and step sizes
  • Design constraints to prevent selection of undesirable designs


  • Extensive set of spreadsheet-style output reports can be printed or exported to Microsoft® Excel®
  • Summary reports with overall results in one or two pages
  • Detailed reports for local profiles of all important parameters (temperature, pressure, heat transfer coefficients, heat flux, etc.)
  • Standard API 662/ISO 15547 style specification sheet
  • 2D scaled drawing provides visual confirmation of exchanger geometry, allowing for quick identification of performance issues
  • Design and Series views allow plotting of variables across alternative designs and between frames in series
  • User-defined graphs for easy accessibility