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Energies 2020, 13, x FOR PEER REVIEW Energies 2020, 13, 2447 Energies 2020, 13, x FOR PEER REVIEW 650 650 550 550 450 2 9 of 18 , 100000 3 450 3 4 4 5 5 350 350 250 250 150 150 0.0 0.5 26 6 1 1 10000 1000 1000 100 100 0 0 100 200 100 200 300 400 500 600 700 800 0.0 0.5 1.0 1.5 2.0 1.0 1.5 2.0 2.5 2.5 Entropy (kJ/kg∙K) Entropy (kJ/kg∙K) Figure 2. Temperature vs. entropy of S-CO2 cycle. Figure 2. Temperature vs. entropy of S-CO2 cycle. Figure 2. Temperature vs. entropy of S-CO2 cycle. 100,000 10,000 , 165 165 234 234 300 400 500 600 700 800 Enthalpy (kJ/kg) Enthalpy (kJ/kg) Figure 3. Pressure vs. enthalpy of S-CO2 cycle. Figure 3. Pressure vs. enthalpy of S-CO2 cycle. 9 of 18 9 of 18 Pressure (kPa) Pressure (kPa) Temperature (K) Temperature (K) Figure 3. Pressure vs. enthalpy of S-CO2 cycle. Additional conditions of the described above exemplary cycle are as follows: mass stream of flue Additional conditions of the described above exemplary cycle are as follows: mass stream of flue gases: 3.55 kg/s, temperature of flue gases at heat exchanger inlet: 616.38 K, temperature of flue gases g a s e As : d 3 d . 5 i 5 t i k o g n / a s l , c t o e n m d p i t e i r o a n t u s r o e f o t h f e f l d u e e s g c a r i s b e e s d a a t b h o e v a t e e e x x c e h m a p n g l a e r r y i n c y l e c t l : e 6 a 1 r 6 e . 3 a 8 s Kf o , l l t o e wm s p : e m r a a t s u s r s e t r o e f a f ml u e o f g f a l s u e e s at heat exchanger outlet: 473.15 K, mass stream of CO2: 3.04 kg/s, the net power system Wnet: 40.86 gaatsheesa:3t.e5x5ckhga/nsg,etermopuetlreatt:u4r7e3o.1f5flKue, mgaassessattrehaemateoxfcChOan2:g3e.r0i4nlkegt:/s6,1t6h.3e8nKet,tpeomwperrasytusrtemofWflunet:g4a0s.e8s6 kW, waste heat utilization ratio WHUR: 3.37%, waste heat transferred to CO2 PWHT: 47.29%, and cycle aktWh,eawt aesxtcehhaenagteur toiluiztlaetti:o4n73ra.1t5ioKW, mHUasRs:s3tr.3e7a%m, owf aCsOte2:h3e.a0t4tkragn/s,fetrhrednettopCoOw2erPWsyHstTem: 47W.2n9et%: 4, 0a.8n6d efficiency CE: 12.73%. Calculated temperature, pressure, enthalpy, and entropy values at successive kcWyc,leweafsftieciehnecayt uCtiEli:za1t2i.o7n3%ra.tiCoaWlcuHlaUtRed: 3t.e3m7%p,erwatausrte,hperaetstsruarnes,fernrtehdaltpoyC, Oan2 dPWenHtrTo:p4y7.2v9a%lu,easnadt stages are presented in Table 3. csyuclceesesfifviceiesntacgyesCaEr:e1p2r.e7s3e%n.teCdailncuTlabteled3t.emperature, pressure, enthalpy, and entropy values at successive stages are presented in Table 3. Table 3. Parameters describing S-CO2 cycle presented in Figures 2 and 3. Table 3. Parameters describing S-CO2 cycle presented in Figures 2 and 3. Temperature Pressure Enthalpy Entropy Table 3. Parameters describing S-CO2 cycle presented in Figures 2 and 3. Stage Stage Temperature Pressure Enthalpy Entropy 1 Temp(eKr)ature Stage 308.15 7700.00 385.83 1.61 2 3 4 5 6 1 12 23 34 45 56 6 3(0K8.)15 379.38 7(7k0P0a.0) 0 (k38J/5k.8g3) 20,000.00 440.41 (kJ/(1k.6g1∙K)) 1.67 1..617 2.03 2.38 2.41 2.06 (K) (kPa) (kJ/kg) Pr(eksPsua)re En(kthJ/aklgp)y (kJ/(kg·K)) (kEJn/t(rkogp∙Ky )) 34306789.1.1358 611.38 271097,090.0.00 348450.5.84931.15 19,800.50 775.09 12..6073 2..0338 2..3481 2..4016 2.06 347698..3185 2109,,0900..00 454901..4115 523.27 7738.50 697.10 466181..1358 19,,9800..050 579715..1059 385.83 7700.00 538.43 197,783080..50 767957..0190 773080..500 659378..1403 385.83 7700.00 538.43 651213..3287 532835..2873PDF Image | Supercritical CO2-Brayton Cycle Nat Gas Compression Station
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