Completely Recuperative Supercritical CO₂ Recompression Brayton/Absorption Combined Power/Cooling Cycle: Performance Assessment and Optimization

Table 8

Thermodynamic properties, exergy streams, and unit cost of system products for the base case system performance.

State no.	(K)	(kPa)	(kg/s)	(%)	(kW)	Cost rates
						($/h)	($/GJ)
1	308.15	7400	1454.6	—	294,124.3	10,179.79	9.614
2	397.35	25300	1454.6	—	363,203.8	13,326.64	10.192
3	607.50	25200	2500.0	—	921,166.8	34,660.45	10.452
4	676.93	25100	2500.0	—	1030,651.3	38,704.54	10.432
5	823.15	25000	2500.0	—	1311,426.0	45,389.1	9.614
6	691.92	7750	2500.0	—	928,293.4	32,128.69	9.614
7	616.01	7650	2500.0	—	814,096.8	28,176.3	9.614
8	462.36	7550	2500.0	—	614,117.5	21,254.9	9.614
9	408.27	7500	1454.6	—	328,448.0	11,367.75	9.614
10	403.15	7450	1454.6	—	325,728.5	11,273.6	9.614
11	442.36	3500	184.31	0.790	3085,448.4	313,177.88	28.195
12	378.46	776.55	184.31	0.790	3037,536.5	308,314.80	28.195
13	315.25	776.55	184.31	0.790	3020,580.4	306,53.68	28.195
14	308.15	776.55	399.32	0.420	3498,188.8	361,000.3	28.666
15	308.23	1370.01	399.32	0.420	3498,483.4	361,042.32	28.666
16	308.23	1370.01	331.57	0.420	2904,905.6	299,785.3	28.666
17	308.23	1370.01	67.75	0.420	593,577.8	61,257.0	28.666
18	308.22	1366.76	67.75	0.420	580,184.2	59,874.82	28.666
19	308.23	1370.01	331.57	0.420	2904,905.6	299,785.28	28.666
20	328.31	1370.01	331.57	0.420	2906,771.8	301,515.0	28.813
21	365.63	1370.01	331.57	0.420	2929,718.1	302,641.96	28.695
22	328.66	1370.01	116.56	0.998	2406,557.9	249,698.3	28.822
23	308.15	1350.01	116.56	0.998	2394,094.6	248,405.11	28.822
24	296.05	1350.01	116.56	0.998	2394,003.8	248,410.73	28.823
25	280.15	553.63	116.56	0.998	2393,588.0	248,367.6	28.823
26	290.15	553.63	116.56	0.998	2384,604.7	247,435.46	28.823
27	305.56	553.63	116.56	0.998	2384,597.8	247,434.73	28.823
28	393.15	1370.01	215.01	0.090	463,297.1	53,040.69	31.801
29	334.79	1370.01	215.01	0.090	453,473.1	51,915.98	31.801
30	334.75	776.55	215.01	0.090	453.473.1	51,915.98	31.801
31	300.15	553.63	184.31	0.79	2999,946.2	310,954.44	28.793
32	300.79	3500.0	184.31	0.79	2992,549.6	311,069.0	28.874
33	400.33	3500	184.31	0.79	3040,074.4	312,173.68	28.524
(MW)		139.1	(MW)		40.8	(MW)	142.42
		68.74%			63.18%		11.67 $/GJ