Thermodynamics & Heat Transfer

Thermodynamics and heat transfer calculators: ideal gas, thermodynamic cycles, Rankine cycle, refrigeration COP, conduction and fin efficiency — with charts.

1. 1

   Ideal Gas Law

   Calculate pressure, volume or temperature using the ideal gas law PV=nRT. Supports Pa, kPa and atm outputs. Free chemistry and physics calcu…
2. 2

   Combined Gas Laws

   Verify PV=nRT, find predicted pressure and volume, and check ideal gas compressibility factor Z. Free gas law calculator for chemistry and p…
3. 3

   Thermodynamic Cycles

   Calculate Otto cycle thermal efficiency, net work output and heat rejection. Compare against Carnot cycle limit. Free thermodynamics calcula…
4. 4

   Rankine Cycle Efficiency

   Calculate steam Rankine power cycle thermal efficiency, net work, heat input, turbine exit quality and net power output with turbine and pum…
5. 5

   Vapour Compression Refrigeration COP

   Calculate COP, cooling capacity, compressor power and condenser heat rejection for vapour compression refrigeration cycles with R-134a, R-41…
6. 6

   Heat Transfer (Conduction)

   Calculate heat transfer rate through a flat wall using Fourier's Law. Returns heat flux and thermal resistance. Free mechanical engineering …
7. 7

   Fin Efficiency Calculator

   Calculate heat transfer fin efficiency and effectiveness for rectangular, triangular and annular fins. Returns actual and maximum heat trans…
8. 8

   Psychrometric Properties· Simulation

   Compute all moist air properties from dry-bulb temperature and relative humidity: humidity ratio W, enthalpy h, wet-bulb temperature, dew po…