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Cycle-Tempo Documentation

Cycle-Tempo Documentation

The manual of Cycle-Tempo is made up of sevaral volumes. This manual is the one accompanying the program. However, updates of the volumes can appear every now and then. The manual can also be used to get a picture of the available features.


This opening section provides a brief overview of Cycle-Tempo, including essential information to effectively utilize the program, a summary of the accompanying manuals, and instructions on their usage.

Operation Guide

“Cycle-Tempo Operation” explains how the program is structured, how you can draw a diagram and how, in general, you can enter data into a specific part of the diagram. It also explains how you can make calculations and how you can print the results. Furthermore, it shows you how to create tables and diagrams (Q, T and value diagrams, T, s and Mollier diagrams), as well as how to print and file them.

Reference Guide

The “Reference Guide” is useful for drafting the process diagram and selecting input parameters. It specifically contains brief information about the various parts and parameters required to specify a system. In order to facilitate searching, we have tried to limit the size of this book by making explanations as brief as possible. In addition to these things, the book describes the output of the program.


The “Examples” part includes several examples of calculations using Cycle-Tempo, to help you draft a system model. We have tried to be of service to both starting and advanced users by including calculations of diverse degrees of complexity. The examples discuss practically every available facility of the program such as the application of user subroutines.

User Subroutines Guide

In the “User Subroutines” part, we have stated the additional requirements for the software, how to install it, and how to compile and link user subroutines. This section also explains how to state user subroutines in the diagram. It gives a detailed explanation of the various possibilities for user subroutines, as well as a detailed description of the parameter lists of the subroutines and a survey of available variables of apparatuses. Finally, it includes an Cycle-Tempo Manual Introduction 4 overview of program functions that can be opened from a user subroutine (including functions to calculate thermodynamic properties of working fluids).

Technical Notes

In order to make proper use of Cycle-Tempo, the user should have more information at his disposal than the manual offers. Knowledge of the calculation methodology and backgrounds of the available apparatus models and software for calculating substance properties is specifically important. Together with instructions on how to use Cycle-Tempo, this information is included in the “Technical Notes” part.

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