Free Engineering Calculators for Hydrogen & Thermodynamics

Scientific Tools for Green Hydrogen, PV Systems and Fluid Properties

Discover our suite of professional engineering calculators designed for hydrogen technologies, thermodynamics, and renewable energy systems. All tools are free to use, based on scientific principles, and powered by CoolProp and other open-source libraries. Click on any tool to start simulating real processes with accuracy and confidence.

🧪 Thermodynamic Properties (100+ Fluids)
Software 3

CoolProp-powered tool for accurate fluid properties

🔘 Explore Thermo Data
💨 Hydrogen Density
& Pressure
Software 1

Get density or pressure of H₂ tanks using real gas models

🔘 Try Free H₂ Pressure Tool
🌡️ H₂ Expansion Temperature
(Joule-Thomson)
Software 2

Simulate hydrogen outlet temperature after throttling.

🔘 Launch Expansion Simulator
☀️ PV System Performance Estimator
Software 3

Design and simulate PV plants using TMY or real data

🔘 Start PV Simulation – Free
⚡ Hydrogen Refueling Simulator
Software 3

Estimate temperatures, heat removal & power in tank refills

🔘 Try Free Refueling Tool