Question

the Taeal gas model Tol alr aiia Hegligible potential energy effects. a. Determine the temperature of the air at the exit of the diffuser, in K b. Ifthe air would undergo an isentropic process as It fows through the diffuser, determine the pressure of the air at the diffuser exit. in kPa. c. Ie friction were present would the pressure of the air at the diffuser exit be greater than. less than. or egual to the value found in part b. explain. S. Steam is the working ftuid in an ideal reheat Rankine cycle. Steam enters the first-stage turbine at 80 MPa. 480°C, and expands to 0.7 MPa. It is then reheated to 440eC before entering the second stage turbine, where it expands to the condenser pressure of 0.008 MPa. The net power output is 100 MW. Determine (a) the thermal efficiency of the cycle (b) the mass flow rate of steam, in kg/h, (C) the rate of heat transfer out from the condensing steam as it passes through the condenser, in MW. Discuss the effects of reheat on the vapor power cycle. NOTE: Do all the problems in a systematic way. Include the units in the calculations, State any assumptions

the question(5.) the answer please in meters. SI units.

Answer 1

ver 04例 G-6586-19922+22 (64080 -l'爷22. ラズ2:0,1895. 5 3353-3 + (348岈ー33533) h3 3438.9 KJLKg

.扳 Ly 8kPa 8423 z 0,5926 + 4 (8-2224-0,57%) BKRa. 2y@w8KSIKg t2290.92 huz1チ3,88 od 0OXlD to the a)寸 Sual e He steam ene

201342-58 kW 201,342 MW Gy_ 63586 x (3348-4-RIAN) Wnet by The -100- 201.343 49.66%. X100 S, The X (246u,455ーは3.88 = 63.586 Qt