82. A liquid dominated geothermal plant with a single flash separator receives water at 204°C.

The separator pressure is 1.04 MPa. A direct contact condenser operates at 0.034 MPa. The

turbine has a polytropic efficiency of 0.75. For cycle output of 60 MW, what is the mass flow

rate of the well water in kg/s?

@ 204°C: hf = 870.51 kJ/kg

@ 1.04 MPa: hf = 770.38 kJ/kg hfg = 2009.2 kJ/kg hg = 2779.6 kJ/kg

sg = 6.5729 kJ/kg-K

@ 0.034 MPa: hf = 301.40 kJ/kg hfg = 2328.8 kJ/kg sf = 0.09793 kJ/kg-K

sfg = 6.7463 kJ/kg-K

A. 2,933 B. 2,100 C. 1,860 D. 2,444