Thermodynamics and Heat Transfer

Ideal gas processes, Carnot efficiency and COP, conduction, convection and radiation, heat exchangers, mixing, water vapor pressure and thermal expansion.

payments ON MAINNET (real money) · 8 live endpoints

EndpointPriceWhat it answers
GET /carnot-efficiency$0.02Carnot limit for a heat engine, refrigerator and heat pump from hot and cold absolute temperatures, with work and heat flows.
GET /conduction-heat-transfer$0.03Steady conduction heat flow through a slab or cylinder wall of layers in series, with R-values and interface temperatures.
GET /convection-radiation$0.02Newton convection, Stefan-Boltzmann net radiation with emissivity, the radiation coefficient and combined heat loss.
GET /heat-exchanger-lmtd$0.03Heat exchanger LMTD (counterflow or parallel) with duty and area, or counterflow effectiveness-NTU outlet temperatures.
GET /ideal-gas-process$0.03Ideal gas isothermal, isobaric, isochoric or adiabatic process: final state, work, heat and internal energy change.
GET /saturation-pressure-water$0.02Saturation vapor pressure of water from 1 to 100 C by Antoine and Magnus equations, or the boiling point at a pressure.
GET /specific-heat-mixing$0.03Final temperature of mixed masses (water, ice, steam, solids) with specific heats and water latent heats of fusion and boiling.
GET /thermal-expansion$0.02Linear, area and volume change of a solid for a temperature change, with typical coefficients for common materials.

GET /catalog returns this list as JSON. Activity hub · uptime.


Thermodynamics arithmetic computed locally from the numbers given, using standard textbook formulas, provided as is. Educational estimates only: not for design or code compliance. Real systems have losses, property variation and safety limits that need a licensed engineer. Every paid response carries a disclaimer field.