In large scale applications, ultrasupercritical Rankine cycles employ up to 10 feedwater heaters, five on the high pressure side and five on the low pressure side, including the deaerator, helping in the increment of the temperature at the inlet of the boiler up to 300°C, allowing a significant regenerative air preheating, thus reducing the fuel consumption.
In large-scale applications, ultrasupercritical Rankine cycles utilize a complex network of feedwater heaters, comprising five on each high- and low-pressure side, including the deaerator. This arrangement facilitates substantial temperature increases at the boiler's inlet to 300°C, enabling efficient regenerative air preheating and reduced fuel consumption.