ABBBBBB?2    !         ! "!#"$#%$&%'&()'*)+*,+-,./.01-2(3/43546576897:2;<:=<>=?>@?A@ q'qqq3'TABLE 9-5. SIMPLE CYCLE GAS TURBINE ANALYSIS 2'WITH STEAM INJECTED GAS TURBINE MODIFICATION'REFERENCE CASE: " VALUE'EQUATION!'air isentropic exponent = k "given'(k-1)/k = e,a!$I$I? '(k-1)/k#'Heating value of fuel, Btu/lbA 'air mass flow rate, lb/sec 'given)'compressor inlet temperature = T1,R "given" 'compressor efficiency = etac   "given# 'compressor pressure ratio = r   "given) 'comp. isentropic exit temp. = T2s,R# P@  'T1r^e,a' 'compressor true exit temp. = T2,R+ . @   'T1+(T2s-T1)/etac! 'compressor work = Wc,Btu/lb! 8  "0.24(T1-T2)*'comb. fractional pressure drop = fpl "given!'turbine pressure ratio = rt!PQ@ 'r(1-fpl)'turbine inlet temp = T3,R "given&'hot gas isentropic exponent = kgާ? "given'(kg-1)/kg = e,g!j?'(kg-1)/kg('gas heat capacity = cp,g, Btu/lb-Rx $(~? "given*'comb. heat addition = Qadded, Btu/lb$0c@ 'cp,g(T3-T2)*'turb. isentropic exit temp. = T4s,R #x @'T3/(rt)^e,g('turb. isentropic efficiency = etat'  "given$'turbine true exit temp. = T4,R+@% @'T3-etat(T3-T4s)'turbine work = Wt,Btu/lb$u@'cp,g(T3-T4)'net work = Wn,Btu/lbPG @  'Wt+Wc'thermal efficiencyx ٞK? 'Wn/Qa'work ratio`Uw? ! 'Wt/|Wc|'power output, KW%ȂW @ '3600maWn/3413'fuel-air ratio6Z? 'Qa/HV'STIG MODIFICATION: 'ms/ma  'given!'Cps, Btu/lb-R!7 !'given)"'Press. steam to combustor Pst, psia"`fffff@ e "'14.7(r)'#'Temp. of steam to combust. Tst, F#@ #'Lookup!$'Steam enthalpy. hst, Btu/lb$) @ $'Lookup%'Feedwater temp. Tfw, F% %'given&'hfw, sat liq. Btu/lb&/ &'Lookup'''delta h for water in HRSG, Btu/lb'h @$&''hst - hfw)('Ht trans in HRSG, Qhrsg, Btu/lb air(83333s@ '('(ms/ma)delta h for water)'hsat liq @ Pst, Btu/lb)B )'Lookup'*'delta h liq. in econ. Dhl, Btu/lb*03333@)&*'hsat liq. @ Ps - hfw+'Sat. Temperature @ Pst, F+@# +'Tst ,'T3, R, @ ,'given -'T3, F- @,-'T3 (R) - 460&.'hot gas isentropic exponent = kg.ާ? .'given/'(kg-1)/kg = e,g!/j?../'(kg-1)/kg)0'hot gas heat capacity cpg, Btu/lb-R0x $(~? 0'given)1'Gas-steam ht cap. Cpm, Btu/lb air-R#1 ۗ?0 !1'Cpg + (ms/ma)Cps2'Qadded, Btu/lb-airA2 Db@0,  !-#!2'Cpg(T3-T2)+Cps(T3-Tst)ms/ma*3'turb. isentropic exit temp. = T4s,R #3x @,3'T3/(rt)^e,g(4'turb. isentropic efficiency = etat4'  4'given%5'turbine true exit temp. = T4, R+5@% @,4,35'T3-etat(T3-T4s)"6'turbine work = Wt,Btu/lb air36@0 !,56'Cpm(T3-T4)7'net work = Wn,Btu/lb7X@6  7'Wt+Wc8'thermal efficiency8?728'Wn/Qadded9'work ratio9tr?6 ! 9'Wt/|Wc|:'power output, kW$:8% @7 :'(3600/3413)maWn;'fuel-air ratio;?2;'Qadded/HV!<'HRSG exit temperature T5, R2<P;3 @5(0 !<'T4 - Qhrsg/Cpm!='HRSG exit temperature T5, F=vf@<='T4 (R) - 460)>'Gas temp. at the pinchpoint, Tpp, F9>⃥@ *0! =>'T5 + (ms/ma)Dhl/Cpm$?'Pinchpoint temp. difference, F?5'G@>+?'Tpp - Tst#@'HRSG exit temp. difference, F@vfp@=%@'T5 - Tfw$A'HRSG inlet temp. difference, F AF@5#A'T4 - Tst