Complete self-contained system in zipped folder
The fastest way to get up and running is to download a complete example in a single zipped folder (ca 360 kB ). This folder includes the ORCHESTRA executable (.jar file), the standard object database (objects.txt), a thermodynamic database and input files defining a simple example system.
ORCHESTRA can be started by clicking the orchestra2023.jar file (or the runorchestra.bat file on Windows) within the folder.
You just need a computer with Java 8 installed!
The latest version of the ORCHESTRA2023.jar file can be downloaded separately here.
This version is backward compatible with earlier versions and should work without changes with existing systems. However, new options (e.g. temperature dependent reactions) require the use of 2023 object and databases files.
ORCHESTRA standard chemical model objects file
This text input file contains the object class definitions for all standard chemical models.
The latest (2023) objects file (text) file can be downloaded here.
Thermodynamic databases in PHREEQC format
From version 2023, ORCHESTRA can directly read databases in PHREEQC format, so the converted versions below are not required for the > 2023 version.
Thermodynamic databases in ORCHESTRA format
For older ORCHESTRA versions the following databases are available in ORCHESTRA format: