13.6D A factory requires 3750 kW of electric power and high- quality steam at 107°C with a mass flow rate of 2.2 kg/s. Two options are under consideration: Option 1: A single boiler generates steam at 2.0 MPa, 320°C, supplying a turbine that exhausts to a condenser at 0.007 MPa. Steam is extracted from the turbine at 107°C, return- ing as a liquid to the boiler after use. Option 2: A boiler generates steam at 2.0 MPa, 320°C sup- plying a turbine that exhausts to a condenser at 0.007 MPa. A separate process steam boiler generates the required steam at 107°C, which is returned as a liquid to the boiler after use. The boilers are fired with natural gas and 20% excess aim Perform a complete thermoeconomic analysis based o 7200 hours of operation annually.