Hi all. Last one before the big day next Friday. Good luck to all!!!
A gas turbine operates with the products of combustion of methane (CH4), with dry air. The volumetric analysis of the products on a dry basis is CO2, 9.7%; CO, 0.5%; O2, 2.95% and N2, 86.85%. The gases have a constant-pressure specific heat of 0.26 Btu/lbm/°F and are discharged from the turbine at 1 atm and 750°F. Upon leaving the turbine the gases enter a counterflow steam recovery boiler where they are used to generate saturated steam from water at 70°F and 50 psia. The maximum possible ratio of steam mass flow to turbine gas flow ((lbm/h)/(lbm/h)) that can be generated in order to avoid condensation of turbine gas moisture within the boiler is most nearly:
(A) 0.14
(B) 0.28
(C) 0.56
(D) 1.12