Thermal Efficiency of a Rocket Engine Calculator

The thermal efficiency for a rocket engine is expressed mathematically as:

where:

• η_th​ is the thermal efficiency,
• T_v​ is the thrust produced by the engine,
• V_jet​ is the jet velocity,
• ​ṁ_p is the mass flow rate of Propellant,
• h_c​ is the specific enthalpy of the fuel.