Thermal Fluid Systems

A furnace burning C₂H₆ is used to provide heat to a boiler.  The boiler produces 21 kg/s of dry saturated steam (saturated vapor) at 2 MPa and condensate enters the boiler at 110^oC and the same pressure.  Product gases leave the boiler at 500 K.  The fuel is burned with air and both of the reactants enter the furnace at 25^oC and 1 atm.  The products behave as an ideal gas and the oxygen concentration (by volume) exiting the combustor is 4%.  Determine:

• The equivalence ratio.
• The adiabatic flame temperature, in K.
• The average specific heat of the product mixture, in kJ/kg.K.
• The mass flow rate of products, in kg/s.
• The mass flow rate of fuel, in kg/s.
• The mass of CO₂ produced per day, in kg