Easily estimate the outlet temperature of hydrogen after an expansion process — just enter the inlet pressure, inlet temperature, and outlet pressure, and get the result instantly.
This tool is ideal for evaluating temperature drops across throttling valves in hydrogen systems, using real gas behavior from CoolProp.
In applications such as hydrogen refueling, or cylinder charging, heating is experienced in expansion valves. Why do other gases such as refrigerants undergo cooling in expansion, and hydrogen undergoes heating?
Calculate the hydrogen outlet temperature of your expansion process with this calculator that applies the Joule-Thomson coefficient.
The calculation seeks accuracy by generating a number of intermediate points between the initial and final conditions, applying a numerical integration of these to try to find a more accurate result.
For more information on this phenomenon, and to learn how to calculate it yourself, here is this article.
Note: Remember yoy that this calculator only is valid for gas state in hydrogen, you will not work with change of phase.