Appendix D: Thermodynamic Properties of Carbon Dioxide
Table D1: Saturated CO2
|
T (oC) |
P (MPa) |
Specific Volume m3/kg |
Specific Internal Energy kJ/kg |
Specific Enthalpy kJ/kg |
Specific Entropy kJ/kgK |
||||
|
vf |
vg |
uf |
ug |
hf |
hg |
sf |
sg |
||
|
-50 |
0.68234 |
0.000866 |
0.055789 |
92.35 |
394.61 |
92.94 |
432.68 |
0.5794 |
2.1018 |
|
-48 |
0.73949 |
0.000872 |
0.051618 |
96.26 |
395.12 |
96.90 |
433.29 |
0.5968 |
2.0909 |
|
-46 |
0.80015 |
0.000878 |
0.047819 |
100.18 |
395.60 |
100.88 |
433.86 |
0.6142 |
2.0801 |
|
-44 |
0.86445 |
0.000883 |
0.044352 |
104.11 |
396.05 |
104.87 |
434.39 |
0.6314 |
2.0694 |
|
-42 |
0.93252 |
0.000889 |
0.041184 |
108.05 |
396.47 |
108.88 |
434.88 |
0.6486 |
2.0589 |
|
-40 |
1.00450 |
0.000896 |
0.038284 |
112.00 |
396.87 |
112.90 |
435.32 |
0.6656 |
2.0485 |
|
-38 |
1.08051 |
0.000902 |
0.035624 |
115.97 |
397.23 |
116.95 |
435.72 |
0.6826 |
2.0382 |
|
-36 |
1.16071 |
0.000909 |
0.033181 |
119.96 |
397.56 |
121.01 |
436.07 |
0.6995 |
2.0281 |
|
-34 |
1.24522 |
0.000915 |
0.030935 |
123.96 |
397.85 |
125.10 |
436.37 |
0.7163 |
2.0180 |
|
-32 |
1.33419 |
0.000922 |
0.028865 |
127.97 |
398.11 |
129.20 |
436.62 |
0.7331 |
2.0079 |
|
-30 |
1.42776 |
0.000930 |
0.026956 |
132.01 |
398.33 |
133.34 |
436.82 |
0.7498 |
1.9980 |
|
-28 |
1.52607 |
0.000937 |
0.025192 |
136.07 |
398.52 |
137.50 |
436.96 |
0.7665 |
1.9880 |
|
-26 |
1.62926 |
0.000945 |
0.023560 |
140.15 |
398.65 |
141.69 |
437.04 |
0.7831 |
1.9781 |
|
-24 |
1.73749 |
0.000953 |
0.022048 |
144.25 |
398.75 |
145.91 |
437.06 |
0.7997 |
1.9683 |
|
-22 |
1.85089 |
0.000961 |
0.020645 |
148.38 |
398.80 |
150.16 |
437.01 |
0.8163 |
1.9584 |
|
-20 |
1.96963 |
0.000969 |
0.019343 |
152.54 |
398.79 |
154.45 |
436.89 |
0.8328 |
1.9485 |
|
-18 |
2.09384 |
0.000978 |
0.018131 |
156.73 |
398.74 |
158.78 |
436.70 |
0.8494 |
1.9387 |
|
-16 |
2.22370 |
0.000987 |
0.017002 |
160.95 |
398.63 |
163.14 |
436.44 |
0.8659 |
1.9287 |
|
-14 |
2.35935 |
0.000997 |
0.015950 |
165.20 |
398.46 |
167.55 |
436.09 |
0.8825 |
1.9187 |
|
-12 |
2.50095 |
0.001007 |
0.014967 |
169.49 |
398.23 |
172.01 |
435.66 |
0.8991 |
1.9087 |
|
-10 |
2.64868 |
0.001017 |
0.014048 |
173.83 |
397.93 |
176.52 |
435.14 |
0.9157 |
1.8985 |
|
-8 |
2.80269 |
0.001028 |
0.013188 |
178.20 |
397.55 |
181.09 |
434.51 |
0.9324 |
1.8882 |
|
-6 |
2.96316 |
0.001040 |
0.012381 |
182.63 |
397.10 |
185.71 |
433.79 |
0.9491 |
1.8778 |
|
-4 |
3.13027 |
0.001052 |
0.011624 |
187.11 |
396.57 |
190.40 |
432.95 |
0.9660 |
1.8672 |
|
-2 |
3.30420 |
0.001065 |
0.010912 |
191.64 |
395.93 |
195.16 |
431.99 |
0.9829 |
1.8564 |
|
0 |
3.48514 |
0.001078 |
0.010241 |
196.24 |
395.20 |
200.00 |
430.89 |
1.0000 |
1.8453 |
|
2 |
3.67329 |
0.001093 |
0.009609 |
200.91 |
394.36 |
204.93 |
429.65 |
1.0172 |
1.8340 |
|
4 |
3.86884 |
0.001108 |
0.009011 |
205.66 |
393.39 |
209.95 |
428.25 |
1.0346 |
1.8223 |
|
6 |
4.07202 |
0.001124 |
0.008445 |
210.50 |
392.28 |
215.08 |
426.67 |
1.0523 |
1.8103 |
|
8 |
4.28306 |
0.001142 |
0.007909 |
215.44 |
391.02 |
220.34 |
424.89 |
1.0702 |
1.7977 |
|
10 |
4.50218 |
0.001161 |
0.007399 |
220.50 |
389.57 |
225.73 |
422.88 |
1.0884 |
1.7847 |
|
12 |
4.72966 |
0.001182 |
0.006912 |
225.69 |
387.92 |
231.29 |
420.62 |
1.1070 |
1.7710 |
|
14 |
4.96577 |
0.001205 |
0.006447 |
231.05 |
386.03 |
237.03 |
418.05 |
1.1261 |
1.7565 |
|
16 |
5.21080 |
0.001231 |
0.006000 |
236.59 |
383.86 |
243.01 |
415.12 |
1.1458 |
1.7411 |
|
18 |
5.46511 |
0.001260 |
0.005569 |
242.38 |
381.33 |
249.26 |
411.77 |
1.1663 |
1.7244 |
|
20 |
5.72905 |
0.001293 |
0.005149 |
248.46 |
378.37 |
255.87 |
407.87 |
1.1877 |
1.7062 |
|
22 |
6.00308 |
0.001332 |
0.004737 |
254.93 |
374.83 |
262.93 |
403.27 |
1.2105 |
1.6860 |
|
24 |
6.28773 |
0.001379 |
0.004327 |
261.94 |
370.50 |
270.61 |
397.70 |
1.2352 |
1.6629 |
|
26 |
6.58368 |
0.001440 |
0.003908 |
269.78 |
364.98 |
279.26 |
390.71 |
1.2628 |
1.6353 |
|
28 |
6.89182 |
0.001526 |
0.003459 |
279.11 |
357.36 |
289.62 |
381.20 |
1.2958 |
1.5999 |
|
30 |
7.21369 |
0.001685 |
0.002898 |
292.40 |
344.23 |
304.55 |
365.13 |
1.3435 |
1.5433 |
|
30.9782 |
7.37730 |
0.002139 |
0.002139 |
316.47 |
316.47 |
332.25 |
332.25 |
1.4336 |
1.4336 |
Table D2: Superheated CO2
|
T (oC) |
v m3/kg |
u kJ/kg |
h kJ/kg |
s kJ/kgK |
v m3/kg |
u kJ/kg |
h kJ/kg |
s kJ/kgK |
|
|
P = 400 kPa |
P = 800 kPa (Sat. T = -46.00 oC) |
||||||
|
Sat |
– |
– |
– |
– |
0.046807 |
395.73 |
434.01 |
2.0771 |
|
-40 |
0.10499 |
405.37 |
447.36 |
2.2603 |
0.049662 |
399.96 |
439.69 |
2.1054 |
|
-20 |
0.11538 |
418.21 |
464.36 |
2.3302 |
0.055455 |
414.03 |
458.40 |
2.1825 |
|
0 |
0.12552 |
431.21 |
481.42 |
2.3951 |
0.060937 |
427.82 |
476.57 |
2.2516 |
|
20 |
0.13551 |
444.47 |
498.67 |
2.4561 |
0.066231 |
441.64 |
494.62 |
2.3153 |
|
40 |
0.14538 |
458.04 |
516.19 |
2.5139 |
0.071401 |
455.61 |
512.73 |
2.3751 |
|
60 |
0.15518 |
471.93 |
534.00 |
2.5690 |
0.076484 |
469.81 |
530.99 |
2.4316 |
|
80 |
0.16491 |
486.15 |
552.12 |
2.6218 |
0.081503 |
484.27 |
549.47 |
2.4855 |
|
100 |
0.17460 |
500.70 |
570.54 |
2.6725 |
0.086474 |
499.02 |
568.20 |
2.5371 |
|
120 |
0.18425 |
515.57 |
589.28 |
2.7214 |
0.091408 |
514.05 |
587.18 |
2.5866 |
|
140 |
0.19388 |
530.76 |
608.31 |
2.7687 |
0.096313 |
529.37 |
606.42 |
2.6343 |
|
160 |
0.20348 |
546.25 |
627.64 |
2.8143 |
0.101194 |
544.97 |
625.93 |
2.6805 |
|
180 |
0.21307 |
562.04 |
647.26 |
2.8586 |
0.106056 |
560.86 |
645.70 |
2.7251 |
|
200 |
0.22264 |
578.11 |
667.16 |
2.9016 |
0.110902 |
577.01 |
665.73 |
2.7683 |
|
220 |
0.23219 |
594.45 |
687.33 |
2.9433 |
0.115734 |
593.43 |
686.01 |
2.8103 |
|
240 |
0.24174 |
611.06 |
707.75 |
2.9839 |
0.120555 |
610.10 |
706.55 |
2.8511 |
|
260 |
0.25127 |
627.92 |
728.43 |
3.0235 |
0.125367 |
627.02 |
727.32 |
2.8908 |
|
|
|
|
|
|
|
|
|
|
|
T (oC) |
v m3/kg |
u kJ/kg |
h kJ/kg |
s kJ/kgK |
v m3/kg |
u kJ/kg |
h kJ/kg |
s kJ/kgK |
|
|
P = 1000 kPa (Sat. T = -40.12 oC) |
P = 1400 kPa (Sat. T = -30.58 oC) |
||||||
|
Sat |
0.03779 |
396.93 |
435.40 |
2.0467 |
0.027145 |
398.31 |
436.80 |
1.9990 |
|
-20 |
0.04342 |
411.80 |
455.21 |
2.1312 |
0.029569 |
406.95 |
448.34 |
2.0476 |
|
0 |
0.04799 |
426.05 |
474.04 |
2.2028 |
0.033153 |
422.32 |
468.73 |
2.1251 |
|
20 |
0.05236 |
440.17 |
492.53 |
2.2681 |
0.036483 |
437.13 |
488.21 |
2.1939 |
|
40 |
0.05660 |
454.36 |
510.96 |
2.3289 |
0.039661 |
451.80 |
507.33 |
2.2570 |
|
60 |
0.06074 |
468.73 |
529.47 |
2.3862 |
0.042739 |
466.52 |
526.35 |
2.3159 |
|
80 |
0.06482 |
483.32 |
548.14 |
2.4406 |
0.045746 |
481.38 |
545.43 |
2.3715 |
|
100 |
0.06885 |
498.17 |
567.01 |
2.4926 |
0.048700 |
496.44 |
564.62 |
2.4244 |
|
120 |
0.07284 |
513.28 |
586.12 |
2.5425 |
0.051615 |
511.73 |
583.99 |
2.4750 |
|
140 |
0.07680 |
528.67 |
605.47 |
2.5905 |
0.054499 |
527.26 |
603.56 |
2.5235 |
|
160 |
0.08074 |
544.33 |
625.07 |
2.6368 |
0.057358 |
543.04 |
623.34 |
2.5703 |
|
180 |
0.08465 |
560.26 |
644.92 |
2.6816 |
0.060197 |
559.07 |
643.35 |
2.6154 |
|
200 |
0.08856 |
576.46 |
665.02 |
2.7250 |
0.063019 |
575.36 |
663.58 |
2.6591 |
|
220 |
0.09244 |
592.91 |
685.36 |
2.7671 |
0.065828 |
591.89 |
684.05 |
2.7015 |
|
240 |
0.09632 |
609.62 |
705.94 |
2.8080 |
0.068625 |
608.66 |
704.73 |
2.7426 |
|
260 |
0.10019 |
626.57 |
726.76 |
2.8478 |
0.071413 |
625.67 |
725.65 |
2.7826 |
|
280 |
0.10405 |
643.76 |
747.81 |
2.8866 |
0.074192 |
642.91 |
746.78 |
2.8215 |
|
|
|
|
|
|
|
|
|
|
|
T (oC) |
v m3/kg |
u kJ/kg |
h kJ/kg |
s kJ/kgK |
v m3/kg |
u kJ/kg |
h kJ/kg |
s kJ/kgK |
|
|
P = 2000 kPa (Sat. T = -19.50 oC) |
P = 3000 kPa (Sat. T = -5.55 oC) |
||||||
|
Sat |
0.01885 |
398.78 |
436.83 |
1.9446 |
0.012124 |
396.93 |
433.52 |
1.8743 |
|
0 |
0.02193 |
416.15 |
460.00 |
2.0341 |
0.012931 |
403.43 |
442.22 |
1.9073 |
|
20 |
0.02453 |
432.27 |
481.32 |
2.1095 |
0.015116 |
423.12 |
468.46 |
2.0001 |
|
40 |
0.02693 |
447.78 |
501.65 |
2.1766 |
0.016980 |
440.52 |
491.46 |
2.0760 |
|
60 |
0.02922 |
463.09 |
521.54 |
2.2381 |
0.018683 |
457.04 |
513.09 |
2.1430 |
|
80 |
0.03143 |
478.40 |
541.27 |
2.2956 |
0.020287 |
473.21 |
534.07 |
2.2041 |
|
100 |
0.03359 |
493.80 |
560.97 |
2.3499 |
0.021824 |
489.25 |
554.73 |
2.2610 |
|
120 |
0.03570 |
509.36 |
580.76 |
2.4016 |
0.023313 |
505.32 |
575.26 |
2.3146 |
|
140 |
0.03777 |
525.12 |
600.67 |
2.4509 |
0.024766 |
521.48 |
595.77 |
2.3655 |
|
160 |
0.03982 |
541.09 |
620.73 |
2.4984 |
0.026191 |
537.77 |
616.35 |
2.4142 |
|
180 |
0.04186 |
557.27 |
640.99 |
2.5441 |
0.027594 |
554.24 |
637.02 |
2.4608 |
|
200 |
0.04387 |
573.69 |
661.43 |
2.5882 |
0.028979 |
570.89 |
657.83 |
2.5058 |
|
220 |
0.04587 |
590.34 |
682.08 |
2.6310 |
0.030350 |
587.74 |
678.79 |
2.5491 |
|
240 |
0.04786 |
607.21 |
702.92 |
2.6724 |
0.031708 |
604.79 |
699.91 |
2.5911 |
|
260 |
0.04983 |
624.31 |
723.98 |
2.7127 |
0.033057 |
622.04 |
721.21 |
2.6318 |
|
280 |
0.05180 |
641.63 |
745.24 |
2.7518 |
0.034396 |
639.49 |
742.68 |
2.6714 |
|
300 |
0.05377 |
659.17 |
766.70 |
2.7899 |
0.035729 |
657.15 |
764.34 |
2.7098 |
|
|
|
|
|
|
|
|
|
|
|
T (oC) |
v m3/kg |
u kJ/kg |
h kJ/kg |
s kJ/kgK |
v m3/kg |
u kJ/kg |
h kJ/kg |
s kJ/kgK |
|
|
P = 6000 kPa (Sat. T = 21.97 oC) |
P = 10000 kPa |
||||||
|
Sat |
0.00474 |
374.87 |
403.32 |
1.6862 |
– |
– |
– |
– |
|
20 |
– |
– |
– |
– |
0.001168 |
231.02 |
242.70 |
1.1251 |
|
40 |
0.00670 |
411.53 |
451.72 |
1.8462 |
0.001591 |
297.13 |
313.04 |
1.3563 |
|
60 |
0.00801 |
435.41 |
483.45 |
1.9445 |
0.003449 |
390.53 |
425.02 |
1.7045 |
|
80 |
0.00908 |
455.64 |
510.12 |
2.0223 |
0.004513 |
425.72 |
470.85 |
1.8384 |
|
100 |
0.01004 |
474.37 |
534.60 |
2.0898 |
0.005303 |
451.11 |
504.14 |
1.9302 |
|
120 |
0.01092 |
492.37 |
557.92 |
2.1507 |
0.005977 |
473.09 |
532.86 |
2.0052 |
|
140 |
0.01176 |
510.00 |
580.59 |
2.2069 |
0.006584 |
493.44 |
559.28 |
2.0708 |
|
160 |
0.01257 |
527.46 |
602.88 |
2.2596 |
0.007147 |
512.90 |
584.37 |
2.1301 |
|
180 |
0.01335 |
544.87 |
624.96 |
2.3094 |
0.007679 |
531.85 |
608.64 |
2.1849 |
|
200 |
0.01411 |
562.31 |
646.95 |
2.3569 |
0.008188 |
550.51 |
632.39 |
2.2362 |
|
220 |
0.01485 |
579.81 |
668.91 |
2.4024 |
0.008679 |
569.03 |
655.82 |
2.2847 |
|
240 |
0.01558 |
597.43 |
690.90 |
2.4461 |
0.009156 |
587.48 |
679.04 |
2.3308 |
|
260 |
0.01630 |
615.17 |
712.95 |
2.4882 |
0.009622 |
605.94 |
702.16 |
2.3750 |
|
280 |
0.01701 |
633.05 |
735.09 |
2.5290 |
0.010078 |
624.44 |
725.22 |
2.4175 |
|
300 |
0.01771 |
651.09 |
757.34 |
2.5685 |
0.010527 |
643.01 |
748.28 |
2.4584 |
|
320 |
0.01840 |
669.28 |
779.70 |
2.6069 |
0.010969 |
661.67 |
771.36 |
2.4980 |
Reference States, IIR Convention
- Enthalpy H = 200 kJ/kg at 0°C for saturated liquid.
- Entropy S = 1 kJ/kg-K at 0°C for saturated liquid.
Source: Eric W. Lemmon, Mark O. McLinden and Daniel G. Friend, “Thermophysical Properties of Fluid Systems” in NIST Chemistry WebBook, NIST Standard Reference Database Number 69, Eds. P.J. Linstrom and W.G. Mallard, National Institute of Standards and Technology, Gaithersburg MD, 20899, https://doi.org/10.18434/T4D303, (retrieved May 2021).
