ESATAN-TMS 1.0 was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The following version: 1.0 is the most frequently downloaded one by the program users. The program belongs to Education Tools. We recommend checking the downloaded files with any free antivirus. The actual developer of the program is ITP Engines UK Ltd.
From the developer:
ESATAN-TMS is a thermal modeling and simulation tool with features such as geometry creation, radiative analysis, and post-processing of the results. This program provides the ability to control the thermal node number; also the same node number to be applied to multiple elements to merge the elements together to produce a coarse thermal mesh. Post-processing capability includes presentation of the thermal results using charts.
You may want to check out more software, such as StatPlus 2007, Avantage BPM Foundation or Adding Machine, which might be similar to ESATAN-TMS.