HXAIR - HTRI Setup

Use this window to enter details for the process and data initialization of the HTRI simulation model.

Usage

HTRI simulation software can be integrated into the air cooled heat exchanger model of PRO/II. Before this is possible, users must acquire a valid license directly from HTRI. The arrangements between the user and HTRI model are beyond the control of Invensys, although we make every reasonable effort to support many versions of HTRI software.

For assistance acquiring or installing HTRI software and licenses, contact the Invensys Process Systems account representative. If you already have installed HTRI software with PRO/II, the specific version in use may be found by navigating to the Help menu, click About, and then click the Version Information button. Currently, the configured HTRI components appear in the alphabetical list of all software in use by PRO/II.

Process Group Entries

Thermodynamic system:

Optionally select separate thermodynamic method sets for the tube side. The list of available sets includes all thermodynamic method sets in the simulation. The default uses the Global Default Thermodynamics Method set for the tube side.

Pressure - Temperature Property Grid

Select the number of pressure and temperature points to enable Pro/II to generate and specify the pressure -temperature property grid to HTRI. The default is 3 pressure points and 10 temperature points. Note that the performance will be faster if the number of points selected is less.

HTRI Data Initialization Group Entries

This option offers two choices: Initialize HTRI data from an existing HTRI file, or from the PRO/II (air cooled) heat exchanger model.

Initialize HTRI Data from an existing HTRI: Select this option to initialize the heat exchanger configuration data from an existing HTRI file data file. Typically these files have names that end in the suffix ".HTRI". Either type the filename directly in the text field, or use the Browse button to select the desired HTRI data.

Initialize HTRI Data from PRO/II ACE Model: Select this option when the configuration data from PRO/II air cooled exchanger needs to be used. In this option, the data from all the Data Entry Windows are copied to the HTRI Data file.

Write PRO/II Default Values to HTRI Data File check box: Check this box to make available the PRO/II default values as well as user entered values in HTRI Data File. If this box is unchecked, it is essential to note that only user entered values are available in HTRI Data File.

Initialize HTRI Data: Push this button to create or modify the HTRI Data file in the TEMP directory. For the "Initialize HTRI Data from an existing HTRI" option, a copy of the file HTRI file is created in the TEMP directory. For the "Initialize HTRI Data from PRO/II ACE Model" option, the HTRI file having a naming convention of "filename_UID" is created in the TEMP directory.

Delete HTRI Data: Push this button to delete the HTRI Data file from the TEMP directory.

Export to Standalone HTRI Data File: Push this button to specify a location and save the HTRI Data file.

Note: The Cancel button in the HTRI Setup DEW nullifies any HTRI setup actions performed earlier. This results in permanent loss of data generated by the Initialize HTRI Data and Export to Standard alone HTRI Data File action, and is not retained by PRO/II. Data deleted by the Delete HTRI Data action remains deleted.

How to get to this window

The HTRI Setup window is accessed by selecting Use HTRI option and clicking the Setup button on the Air Cooled Exchanger Window.

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