Pinch Analysis Module

CanmetENERGY developed the INTEGRATION software in order to better respond to the need for practical and low-cost process integration computation tools. With this software, energy efficiency experts are able to identify and evaluate energy saving projects in a global analysis framework.

The INTEGRATION software consists of several computation modules based on sophisticated analysis models and tools built around a user-friendly interface.

The Pinch Analysis module allows:

  • Carrying out a Pinch analysis of the heat exchangers in a given process, with the option of including – or not including – waste heat from utility production systems
  • Determining the potential for energy savings (during heating and cooling) and identifying the heat exchangers that are sources of inefficient energy use
  • Defining the changes needing to be made to a given set of heat exchangers in order to improve energy recovery

For more information about the software, see the INTEGRATION software page. In addition to the Pinch Analysis module, the software also includes the following modules:

Screenshot of the Integration Software's Pinch Analysis Module

Screenshot of the INTEGRATION Software's Pinch Analysis Module.

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Text Version

Screenshot: Pinch Analysis

This image is a screenshot of the Integration software’s Pinch Analysis module. In the first window at the top of the screen, information relating to the Diagnosis of Existing Heat Exchangers is shown.

The information is presented in a table separated into five columns: the first column lists the exchanger name; the second column indicates the cross-pinch value in kilowatts; the third column lists the hot streams; the fourth column lists the cold streams; and the fifth column shows the match penalty values in kilowatts.

Under this window, there are two smaller windows seen side by side. The window on the left shows a composite curve diagram in the form of a graph. On the graph, temperature values ranging from 0 to 400 degrees Celsius make up the vertical axis while heat load values ranging from 0 to 200,000 kilowatts make up the horizontal axis. A hot composite curve is shown in red on the graph and a cold composite curve is shown in blue. The pinch location is also shown in purple.

The window on the right shows a grand composite curve diagram in the form of a graph. On the graph, temperature values ranging from 0 to 400 degrees Celsius make up the vertical axis while heat load values ranging from 0 to 50,000 kilowatts make up the horizontal axis. The grand composite curve is indicated in purple on the graph.

Below these graphs, a final window in the form of a table presents the analysis results. The table is divided into four columns: the first column indicates the different result components such as the Pinch temperature, minimum utility consumption, scope, heat recovered, etc.; the second column indicates the unit of measurement for the component values, either in kilowatts or in degrees Celsius; the third column shows the component values for the Base Case; and the fourth column shows the values of the Remaining Problem.

Screenshot of a composite curve taken from the Integration Software

Screenshot of a composite curve taken from the INTEGRATION Software.

Larger image

Text Version

Screenshot: Composite Curves

This image is a screenshot of a composite curve taken from the Integration software. In this screenshot, a window shows a composite curve diagram in the form of a graph.

On the graph, temperature values ranging from 0 to 400 degrees Celsius make up the vertical axis while heat load values ranging from 0 to 200,000 kilowatts make up the horizontal axis. A hot composite curve is shown in red on the graph and a cold composite curve is shown in blue. The pinch location is also shown in purple.

The minimum temperature approach is indicated at the top of the window and a menu on the right side of the graph gives the option of seeing the system’s different exchangers and streams.