Thermodynamic Cycles

Thermo Cycles is a powerful thermodynamic cycle calculator designed for engineering students and professionals. Solve 12 thermodynamic cycles quickly and accurately — just enter the values you know, and the iterative constraint solver computes the rest.

Supported cycles:
- Carnot Cycle
- Otto Cycle
- Diesel Cycle
- Brayton Cycle
- Regenerative Brayton Cycle
- Rankine Cycle
- Reheated Rankine Cycle
- Open Feedwater Heater Cycle
- Closed Feedwater Heater Cycle
- Flash Chamber Cycle
- Heat Pump / Refrigeration Cycle
- Cascading Refrigeration Cycle

Features:
- Built-in fluid property tables for steam, R-134a, and more
- Iterative constraint solver — enter what you know, get the full solution
- State point properties automatically resolved from fluid tables
- Clean, intuitive interface optimized for studying and problem sets
- Available in 21 languages

Get started free with the Carnot, Otto, and Rankine cycles included. Unlock additional cycle packs via in-app purchase.

Whether you are studying for exams or solving homework problems, Thermo Cycles makes thermodynamic analysis fast and straightforward.