Simulis Pinch

Energy Integration of Processes in Microsoft® Excel

Simulis Pinch allows any engineer to easily apply the pinch technology to find the best possible energy exchanges between streams to be heated and streams to be cooled. All the constraints of the plant (distances, incompatible exchanges…) can be taken into account in this method. Simulis Pinch performs an energy audit of a process, determines its maximum energy performance and identifies if a better energy integration will significantly reduce the utilities consumption of the process. Simulis Pinch makes it possible to quickly estimate the real energy efficiency for the process.

Main features

All the features necessary for an advanced energy audit in one tool.

Automatic and rapid synthesis of an efficient network of heat exchangers.

Interactive grid diagram.

A great configuration flexibility to use in design or revamping.

Microsoft® Excel Add-in with complete results processing and analysis that is simple to use.

A standalone solution or in conjunction with a process simulation software.


Energy efficiency - consulting - ProSimA tool dedicated to energy efficiency using the pinch method.


Simulis Pinch consists of two parts:


  • The first part allows you to do the energy diagnostic of the process. The diagnostic identifies the minimum requirement of hot utilities and cold utilities, the maximum recoverable energy using the energy integration method and the temperature at the pinch point. The engineer can thus conduct a complete preliminary analysis on energy efficiency and verify that the utilities production on site meets the real needs of the process. The energy diagnosis is based on pinch technology and uses the characteristics (initial temperature, final temperature and energy flux) of the hot streams and the cold streams flowing inside the process.
  • The second part is the energy integration of a process. The energy integration concept refers to the optimal synthesis of a heat exchanger network that achieves maximum energy recovery, i.e. to reach the process operating point with the minimum of energy required by coupling the hot fluids (energy givers) and the cold fluids (energy consumers). The implemented method consists in choosing from among all possible exchanges between hot and cold streams that meet the user’s criteria (minimum exchange strength…), and then deciding which are the best ones (maximum exchanged strength, best efficiency…).



Composite curve - pinch analysis

Diagram TQ – This chart illustrates the need in hot utility, in cold utility, the maximum recoverable heat duty and the pinch temperature.
The area that applies to the recoverable heat duty appears in green.








Hardware requirements

Intel (or equivalent) based PC with:

  • 2 GB RAM or more (4 GB recommended).
  • 32-bit or 64-bit operating system such as Microsoft Windows XP, Vista, Windows 7, Windows 8, Windows 10, Windows Server 2003, Windows Server 2008, Windows Server 2012, Windows Server 2016, Windows Server 2019 (please consult for other systems).
  • Microsoft Excel™ 32 bits or 64 bits.
  • At least 2 GB free disk space after install for optimal desktop performance.
  • Internet access to download the software and the license.




Simulis Pinch: process energy integration tool in Microsoft Excel™

  • Simulis Pinch is an independent tool, directly available in Microsoft Excel™. It also can be used within ProSimPlus software. Then, the combination of ProSimPlus and Simulis Pinch identifies opportunities to reduce operating costs and increase throughput with an energy utilization analysis. This combination is very powerful when trying to improve the energy efficiency of complex processes.
  • Simulis Pinch has a pragmatic approach: the objective is to ensure, in a very short time, to propose various heat exchanger network solutions that meet the real constraints of the industrial site (fluids compatibility, distance,…).


Compared to the “manual” approach (limited to only very few streams and tedious when testing different scenarios) and mathematical approaches (limited by very lengthy calculations required for real industrial processes with many streams, leading most of the time to unrealistic solutions in terms of couplings and unproductive when the cost of units are very different depending on the couplings), the unique approach of Simulis Pinch makes it thus a particularly effective tool.


  • The list of hot streams and cold streams flowing inside the process with their characteristics (initial temperature, final temperature and energy flow) can be entered in Excel or can be generated automatically during a process simulation using ProSimPlus.
  • The various diagnostic results and the overall heat exchanger network can then be viewed in various graphical forms (temperature/enthalpy diagram…).
  • In the automatic synthesis of a ‘good’ heat exchanger network, it is possible to take into account the specific constraints on particular exchanges, for example, due to fluids incompatibility, different plants, distance, difficulties, etc.
  • The various exchanges between hot streams and cold streams and the overall exchanger network generated by Simulis Pinch can be viewed in different formats: a grid diagram, composites curves, tables of numerical values… In addition, a CAPEX study can be performed to revamp or retrofit the heat exchangers network
  • In addition to being easy-to-use and user-friendly, since Simulis Pinch is used directly in Excel, the user can take advantage of all of the additional data and results processing available in Excel, and also combine Simulis Pinch with other Excel-compatible tools available from ProSim, such as Simulis Thermodynamics (mixture properties and fluid phase equilibria calculations solution) or Simulis Numerics (library of numerical tools, optimization …).



Pinch analysis - process energy integration tool in Microsoft Excel™ - exchange efficiency


View the recorded Webinar ‘Run an energy diagnostic with Simulis Pinch’


Simulis Pinch is an add-in in Microsoft Excel™. The functionalities of Simulis Pinch are accessible in any Microsoft Excel ™ spreadsheet. It is a tool for energy diagnosis and energy integration of processes in Microsoft Excel ™.

In addition to its ease of use, having Simulis Pinch directly in Excel allows the user to perform any type of additional processing of data and results.