Question

[Updated 29/03/2019 11:50. Reviewing an attempt before this time will show incorrect question and answer numbers] A Rankine cycle with reheat and 2 non-ideal turbines has the following relevant states Water leaves the condenser as a saturated liquid with a pressure of 16.0 kPa. As it passes through the ideal pump, it is raised to a pressure of 7 MPa - The boiler raises adds heat isobarically until the substance has a temperature of 400°C. The reheating process raises the substance to the same temperature -The high pressure turbine has an isentropic efficiency of 91.0% - The intermediate pressure between the turbines is 4.5 MPa -The low pressure turbine has an isentropic efficiency of 91.0% High-P turbine Low-P turbine High-pressure Low-pressure Reheater Boiler Enthalpy values Not graded. Will give feedback if all are filled out. What are your values for specific enthalpy hn? Property State 2 3 6a h kJ/kg Final values (graded): What is the net specific work generated by the cycle? kJ/kg What is the total specific heat input at the boiler? qboil What is the thermal efficiency of the cycle? 7th kJ/kg Check

Answer 1

iven Boile 2 4a process S-69ラ non-ideal Soions Enth alpies et various states and 06

Y3 kyk ttis supevheated stale Sy 6.963 kJ tgK 3S0-30o 336-67 C - etha S M technique exheate and 331.67。(1byīnkvp%Hon

거느 ,500 C ไม่ 336.6 ะ 2944.2 KJ Ty - 356- 30c Fo 3161 2 3oyy.895 At state S

OI6kP. 3-6207に0772- SA351 .21S 7.21S At State 6 23) Ct 0.82x 237% 2175 % 320s7-217S A st jskp

Net speailsc or euad yele AoYK developedレメHP tuYLine 361.2- 30SS- 36 こ(los: 04 +137.932)-708

Qttyこ Het.addo/1aboilert Reheat.깡 3 n 2 14-3-230 ()+20-5. 3072 S2 Net uwosk th totel heat iaput 3072.832