Calculate unknowns for various thermodynamic cycles with ease- including; Otto, Diesel, Brayton, Regenerative Brayton, Rankine, Rankine with Reheating, Open/Closed Feedwater Heaters, Heat Pump/Refrigeration, Cascading and Flash Chamber Cycles. Simply add in known variables and click calculate to find all possible unknowns. Note- only uses Metric system (not imperial). More cycles, refrigerant choices and options coming soon!! yolo.