Concentric heat exchanger design. CTHE allows the rating and the design of concentric (pipe-in-pipe, double-pipe) heat exchangers, with single or double phase flow (evaporation and condensation). It is written in Python with WxPython libraries and it is multi-platform.

Linux distributions usually have already installed Python.
For Debian and derivatives, WxPython is available as .deb package (python-wxgtk2.8)

Windows users have to download both Python and WxPython libraries.

This software needs no installation. Please unzip the folder, from terminal (or from browser) launch:
./inputCTHE.py

Requirements:
* Python
* wxPython

The license of this software is Free, you can free download and free use this calculator software.