Does anyone know how to solve it correctly? I posted it once and the answer was incorrect. It's CHE 301 class. I will rate your answer. Thank you.

Problem 2: Regenerative Rankine Cycle with Closed Feed Water Heater (CFWH) Superheated steam is generated in a boiler at P=80bar and T = 480C and expanded into a High Pressure Turbine. A slip stream (known as extraction steam) is diverted into a Closed Feed Water Heater (CFWH) to heat the liquid condensate before it enters the steam generator. The cold extraction steam is then directed back to the main condenser. The rest of the HP Turbine exhaust is expanded into a steam condensing turbine (CST) to a pressure P=8kPa. This process is known as Regenerative Rankine Cycle with Closed Feed Water Heater (CFWH) and it is very common in modern power plants because it results in substantial reduction of fuel usage and therefor carbon dioxide emissions. A schematic of a typical Regenerative Rankine Cycle with CFWH is shown below: $1 S3 STEAM Generator STEAM S2 HP Turbine STEAM LP Turbine S4 Extraction STEAM 35 Main Condenser S9 S8 S7 g Closed Feed Water Heater BFW Pumps S6 The following operating data are available for this power plant: 1. Power generated from the two turbines: 1000 MW 2. Temperature of Stream S7 38 deg C 3. HP and LP Turbine efficiency: 80% 4. Boiling Feed Water(BFW) pump efficiency 75% 5. Fuel used: Coal with heating value 22 MJ/kg 6. Boiler efficiency: 80% 7. Temperature of Steam S9 two degrees Celsius lower than temperature of stream 56 Calculate: 1. The emissions of CO2 in gigatons per year. 2. The reduction of emissions compared to the standard Rankine cycle with the same operating data. 3. Find through research the CO2 emissions per year worldwide in gigatons. Make sure you report the year for which you have found this information