ENGINEERING – THERMODYNAMIC & HVAC CALCULATOR
Rankine Cycle Efficiency
A precise tool.
What is the Rankine Cycle Efficiency & How does it work?
The Rankine cycle is the fundamental thermodynamic cycle used in steam power plants, converting heat from a boiler into mechanical work through a turbine and then rejecting waste heat in a condenser. In its ideal form, the cycle consists of four reversible processes: isentropic expansion in the turbine, isobaric heat rejection in the condenser, isentropic compression in the pump, and isobaric heat addition in the boiler. The thermal efficiency of an ideal Rankine cycle can be expressed in terms of the temperatures at which heat is added and rejected, analogous to the Carnot efficiency, and is given by the formula below.
\eta = 1 – \frac{T_{c}}{T_{b}}
eta = thermal efficiency, T_{b} = boiler temperature (K), T_{c} = condenser temperature (K)
Parameters
Result
β
Frequently Asked Questions
What is the Rankine cycle?
The Rankine cycle is a thermodynamic cycle used in steam power plants to convert heat into mechanical work.
How do I calculate the thermal efficiency of an ideal Rankine cycle?
Use the formula Ξ· = 1 – (Tc/Th), where Tc is the condenser temperature and Th is the boiler temperature in Kelvin.
What are the four processes in an ideal Rankine cycle?
The four processes are isentropic expansion, isobaric heat rejection, isentropic compression, and isobaric heat addition.
Why is the Rankine cycle important?
It’s crucial for generating electricity in thermal power plants by efficiently converting steam into mechanical energy.
Can this calculator handle different units of temperature?
Yes, ensure all temperatures are in Kelvin for accurate calculations.
What is the difference between an ideal and real Rankine cycle?
An ideal cycle assumes reversible processes with no friction or heat loss, while a real cycle includes these inefficiencies.
Results are for informational purposes only and do not constitute professional advice.