Thermal efficiencies of ideal regenerative Rankine cycles for water heaters

an approach using interpolation

Resumen

This article aims to analyze and compare the thermal efficiencies of ideal regenerative Rankine cycles that use feedwater heaters exclusively, using predetermined parameters. Based on the mathematical modeling described by the equations, an attempt was made to model the systems with idealized cycle parameters and equipment, such as existing boilers and turbines. Thermodynamic tables were then used to acquire maximum and minimum temperature, entropy, and enthalpy data for the cycles under the specified conditions. Finally, the Octave program was used to calculate the thermal efficiencies of the cycles in various ranges of air removed from the turbine, and it was found that the cycle that used a closed feedwater heater (AAF) had a higher efficiency than the cycle with an open feedwater heater (AAA). The results obtained were satisfactory.