Superheated R-1234yf vapor table

Name: Superheated R-1234yf vapor table
Creator: Simuveliq

This table gives v, u, h and s of superheated vapor in pressure blocks. Above you can use it interactively (switch units with SI/US, pick the pressure or go to the calculator for any point with step-by-step interpolation). Reference state: ASHRAE: h = 0 and s = 0 for saturated liquid at −40 °C (−40 °F).

The table as text, SI units

P = 0.015 MPa (T_sat = −65.456 °C)
T [°C]	v [m³/kg]	u [kJ/kg]	h [kJ/kg]	s [kJ/kg·K]
Sat.	0.99783	154.14	169.10	0.82255
−60	1.0251	157.63	173.01	0.84110
−40	1.1246	171.00	187.87	0.90770
−20	1.2234	185.20	203.55	0.97222
0	1.3219	200.21	220.04	1.0349
20	1.4200	216.02	237.32	1.0959
40	1.5179	232.59	255.36	1.1554
60	1.6157	249.91	274.14	1.2136
80	1.7134	267.94	293.64	1.2704
100	1.8110	286.66	313.82	1.3260
120	1.9085	306.04	334.67	1.3804

P = 0.025 MPa (T_sat = −57.096 °C)
T [°C]	v [m³/kg]	u [kJ/kg]	h [kJ/kg]	s [kJ/kg·K]
Sat.	0.61948	159.24	174.73	0.81238
−40	0.67126	170.77	187.55	0.86949
−20	0.73125	185.02	203.30	0.93427
0	0.79080	200.07	219.84	0.99713
20	0.85005	215.90	237.15	1.0583
40	0.90910	232.49	255.22	1.1179
60	0.96800	249.82	274.02	1.1761
80	1.0268	267.86	293.53	1.2329
100	1.0855	286.59	313.73	1.2886
120	1.1442	305.98	334.58	1.3430

P = 0.04 MPa (T_sat = −48.663 °C)
T [°C]	v [m³/kg]	u [kJ/kg]	h [kJ/kg]	s [kJ/kg·K]
Sat.	0.39950	164.47	180.46	0.80479
−40	0.41622	170.43	187.08	0.83375
−20	0.45436	184.75	202.93	0.89894
0	0.49206	199.85	219.54	0.96206
20	0.52945	215.72	236.90	1.0234
40	0.56663	232.34	255.00	1.0831
60	0.60366	249.69	273.84	1.1414
80	0.64059	267.75	293.37	1.1984
100	0.67743	286.49	313.59	1.2540
120	0.71422	305.89	334.46	1.3085

P = 0.06 MPa (T_sat = −40.735 °C)
T [°C]	v [m³/kg]	u [kJ/kg]	h [kJ/kg]	s [kJ/kg·K]
Sat.	0.27350	169.45	185.86	0.79971
−40	0.27447	169.97	186.44	0.80218
−20	0.30050	184.39	202.42	0.86793
0	0.32607	199.56	219.13	0.93143
20	0.35132	215.48	236.56	0.99301
40	0.37636	232.14	254.72	1.0529
60	0.40124	249.52	273.59	1.1113
80	0.42602	267.60	293.16	1.1684
100	0.45072	286.36	313.40	1.2241
120	0.47536	305.77	334.29	1.2786

P = 0.1 MPa (T_sat = −29.757 °C)
T [°C]	v [m³/kg]	u [kJ/kg]	h [kJ/kg]	s [kJ/kg·K]
Sat.	0.16942	176.42	193.36	0.79540
−20	0.17735	183.64	201.38	0.82769
0	0.19324	198.96	218.29	0.89198
20	0.20879	214.99	235.87	0.95409
40	0.22412	231.73	254.14	1.0144
60	0.23930	249.17	273.10	1.0730
80	0.25436	267.29	292.73	1.1302
100	0.26934	286.09	313.02	1.1861
120	0.28426	305.53	333.95	1.2408

P = 0.2 MPa (T_sat = −12.770 °C)
T [°C]	v [m³/kg]	u [kJ/kg]	h [kJ/kg]	s [kJ/kg·K]
Sat.	0.087958	187.27	204.86	0.79351
0	0.093481	197.40	216.09	0.83560
20	0.10182	213.72	234.09	0.89917
40	0.10991	230.68	252.66	0.96043
60	0.11781	248.27	271.83	1.0198
80	0.12560	266.52	291.64	1.0775
100	0.13330	285.40	312.06	1.1338
120	0.14093	304.92	333.10	1.1887

P = 0.3 MPa (T_sat = −1.5113 °C)
T [°C]	v [m³/kg]	u [kJ/kg]	h [kJ/kg]	s [kJ/kg·K]
Sat.	0.059611	194.46	212.34	0.79456
0	0.060081	195.70	213.73	0.79964
20	0.066082	212.38	232.21	0.86494
40	0.071782	229.58	251.11	0.92731
60	0.077288	247.35	270.53	0.98742
80	0.082661	265.72	290.52	1.0457
100	0.087940	284.71	311.09	1.1023
120	0.093149	304.29	332.24	1.1575

P = 0.5 MPa (T_sat = 14.322 °C)
T [°C]	v [m³/kg]	u [kJ/kg]	h [kJ/kg]	s [kJ/kg·K]
Sat.	0.036136	204.42	222.49	0.79798
20	0.037304	209.43	228.09	0.81725
40	0.041181	227.23	247.82	0.88237
60	0.044806	245.41	267.81	0.94424
80	0.048272	264.07	288.21	1.0037
100	0.051629	283.27	309.09	1.0612
120	0.054907	303.02	330.48	1.1170

P = 0.8 MPa (T_sat = 30.765 °C)
T [°C]	v [m³/kg]	u [kJ/kg]	h [kJ/kg]	s [kJ/kg·K]
Sat.	0.022404	214.39	232.31	0.80252
40	0.023756	223.20	242.20	0.83459
60	0.026422	242.21	263.35	0.90004
80	0.028862	261.42	284.51	0.96174
100	0.031164	281.01	305.94	1.0208
120	0.033372	301.05	327.75	1.0777

P = 1.5 MPa (T_sat = 56.032 °C)
T [°C]	v [m³/kg]	u [kJ/kg]	h [kJ/kg]	s [kJ/kg·K]
Sat.	0.011201	227.93	244.73	0.80709
60	0.011645	232.45	249.91	0.82274
80	0.013540	254.08	274.39	0.89412
100	0.015127	275.06	297.75	0.95846
120	0.016556	296.02	320.85	1.0188

P = 2.5 MPa (T_sat = 79.620 °C)
T [°C]	v [m³/kg]	u [kJ/kg]	h [kJ/kg]	s [kJ/kg·K]
Sat.	0.0056290	235.26	249.33	0.79727
80	0.0056827	235.94	250.15	0.79959
100	0.0075144	263.83	282.62	0.88917
120	0.0087401	287.43	309.28	0.95879

P = 4 MPa
T [°C]	v [m³/kg]	u [kJ/kg]	h [kJ/kg]	s [kJ/kg·K]
100	0.0015789	204.89	211.20	0.68012
120	0.0040364	268.17	284.31	0.87211

P = 6 MPa
T [°C]	v [m³/kg]	u [kJ/kg]	h [kJ/kg]	s [kJ/kg·K]
100	0.0012550	189.61	197.14	0.63517
120	0.0016254	228.58	238.34	0.74260

P = 10 MPa
T [°C]	v [m³/kg]	u [kJ/kg]	h [kJ/kg]	s [kJ/kg·K]
100	0.0011229	179.69	190.91	0.60586
120	0.0012483	210.29	222.77	0.68901

The table as text, English units

P = 1.5 psia (T_sat = −95.937 °F)
T [°F]	v [ft³/lbm]	u [Btu/lbm]	h [Btu/lbm]	s [Btu/lbm·R]
Sat.	22.619	64.814	71.092	0.19851
−75	23.959	67.981	74.631	0.20797
−50	25.554	71.930	79.023	0.21902
−25	27.143	76.057	83.591	0.22984
0	28.728	80.356	88.330	0.24044
25	30.310	84.824	93.237	0.25084
50	31.890	89.458	98.310	0.26104
75	33.467	94.254	103.54	0.27107
100	35.044	99.209	108.94	0.28092
125	36.619	104.32	114.48	0.29062
150	38.193	109.58	120.18	0.30016
175	39.766	114.99	126.03	0.30956
200	41.339	120.54	132.01	0.31881
225	42.911	126.23	138.14	0.32793
250	44.483	132.06	144.40	0.33691
275	46.055	138.01	150.79	0.34576

P = 2.5 psia (T_sat = −81.863 °F)
T [°F]	v [ft³/lbm]	u [Btu/lbm]	h [Btu/lbm]	s [Btu/lbm·R]
Sat.	14.039	66.841	73.335	0.19576
−75	14.306	67.897	74.515	0.19885
−50	15.273	71.860	78.925	0.20996
−25	16.235	75.997	83.508	0.22081
0	17.193	80.305	88.259	0.23144
25	18.148	84.780	93.176	0.24185
50	19.100	89.419	98.255	0.25207
75	20.050	94.220	103.50	0.26211
100	20.999	99.178	108.89	0.27197
125	21.947	104.29	114.44	0.28168
150	22.894	109.56	120.15	0.29122
175	23.840	114.97	126.00	0.30062
200	24.785	120.52	131.99	0.30988
225	25.730	126.21	138.12	0.31900
250	26.675	132.04	144.38	0.32799
275	27.619	138.00	150.77	0.33684

P = 4 psia (T_sat = −67.714 °F)
T [°F]	v [ft³/lbm]	u [Btu/lbm]	h [Btu/lbm]	s [Btu/lbm·R]
Sat.	9.0545	68.913	75.615	0.19362
−50	9.4896	71.753	78.777	0.20151
−25	10.099	75.907	83.382	0.21242
0	10.704	80.228	88.151	0.22309
25	11.306	84.714	93.082	0.23353
50	11.905	89.362	98.174	0.24377
75	12.503	94.169	103.42	0.25383
100	13.099	99.133	108.83	0.26371
125	13.694	104.25	114.39	0.27342
150	14.288	109.52	120.09	0.28298
175	14.881	114.93	125.95	0.29239
200	15.474	120.49	131.94	0.30165
225	16.066	126.18	138.08	0.31078
250	16.658	132.01	144.34	0.31976
275	17.249	137.97	150.74	0.32862

P = 6 psia (T_sat = −54.453 °F)
T [°F]	v [ft³/lbm]	u [Btu/lbm]	h [Btu/lbm]	s [Btu/lbm·R]
Sat.	6.2015	70.882	77.767	0.19211
−50	6.2758	71.608	78.576	0.19409
−25	6.6895	75.785	83.212	0.20508
0	7.0988	80.124	88.006	0.21580
25	7.5049	84.624	92.957	0.22628
50	7.9084	89.284	98.064	0.23656
75	8.3100	94.100	103.33	0.24664
100	8.7101	99.072	108.74	0.25654
125	9.1090	104.20	114.31	0.26627
150	9.5070	109.47	120.03	0.27584
175	9.9042	114.89	125.88	0.28526
200	10.301	120.45	131.88	0.29453
225	10.697	126.15	138.02	0.30366
250	11.093	131.98	144.29	0.31265
275	11.488	137.94	150.69	0.32151

P = 10 psia (T_sat = −36.154 °F)
T [°F]	v [ft³/lbm]	u [Btu/lbm]	h [Btu/lbm]	s [Btu/lbm·R]
Sat.	3.8466	73.632	80.750	0.19067
−25	3.9609	75.535	82.865	0.19560
0	4.2140	79.913	87.711	0.20644
25	4.4635	84.443	92.703	0.21701
50	4.7104	89.126	97.843	0.22735
75	4.9554	93.962	103.13	0.23748
100	5.1987	98.950	108.57	0.24742
125	5.4409	104.09	114.16	0.25718
150	5.6821	109.37	119.89	0.26678
175	5.9225	114.80	125.76	0.27622
200	6.1623	120.36	131.77	0.28551
225	6.4016	126.07	137.91	0.29465
250	6.6405	131.91	144.19	0.30366
275	6.8789	137.87	150.60	0.31253

P = 20 psia (T_sat = −7.9751 °F)
T [°F]	v [ft³/lbm]	u [Btu/lbm]	h [Btu/lbm]	s [Btu/lbm·R]
Sat.	2.0049	77.917	85.337	0.18963
0	2.0481	79.361	86.941	0.19315
25	2.1810	83.974	92.046	0.20396
50	2.3109	88.722	97.275	0.21448
75	2.4386	93.609	102.64	0.22475
100	2.5647	98.638	108.13	0.23479
125	2.6894	103.81	113.76	0.24463
150	2.8131	109.12	119.53	0.25429
175	2.9360	114.57	125.44	0.26379
200	3.0583	120.16	131.47	0.27312
225	3.1800	125.88	137.65	0.28230
250	3.3013	131.73	143.94	0.29134
275	3.4221	137.70	150.37	0.30023

P = 30 psia (T_sat = 10.623 °F)
T [°F]	v [ft³/lbm]	u [Btu/lbm]	h [Btu/lbm]	s [Btu/lbm·R]
Sat.	1.3645	80.759	88.334	0.18953
25	1.4185	83.479	91.354	0.19586
50	1.5100	88.300	96.683	0.20658
75	1.5990	93.244	102.12	0.21699
100	1.6861	98.317	107.68	0.22715
125	1.7719	103.52	113.36	0.23708
150	1.8565	108.86	119.17	0.24681
175	1.9403	114.34	125.11	0.25636
200	2.0235	119.94	131.18	0.26573
225	2.1060	125.68	137.37	0.27495
250	2.1881	131.54	143.69	0.28402
275	2.2698	137.53	150.14	0.29294

P = 50 psia (T_sat = 36.688 °F)
T [°F]	v [ft³/lbm]	u [Btu/lbm]	h [Btu/lbm]	s [Btu/lbm·R]
Sat.	0.83444	84.725	92.445	0.18995
50	0.86695	87.394	95.416	0.19585
75	0.92571	92.471	101.04	0.20662
100	0.98222	97.645	106.73	0.21703
125	1.0371	102.93	112.53	0.22716
150	1.0907	108.33	118.43	0.23704
175	1.1434	113.86	124.44	0.24671
200	1.1953	119.51	130.57	0.25618
225	1.2466	125.28	136.82	0.26547
250	1.2974	131.18	143.18	0.27460
275	1.3479	137.19	149.66	0.28358

P = 80 psia (T_sat = 63.678 °F)
T [°F]	v [ft³/lbm]	u [Btu/lbm]	h [Btu/lbm]	s [Btu/lbm·R]
Sat.	0.52474	88.757	96.526	0.19080
75	0.54398	91.180	99.233	0.19592
100	0.58429	96.550	105.20	0.20683
125	0.62243	101.98	111.20	0.21731
150	0.65902	107.50	117.25	0.22746
175	0.69445	113.11	123.39	0.23733
200	0.72901	118.84	129.63	0.24696
225	0.76288	124.67	135.96	0.25638
250	0.79620	130.61	142.40	0.26562
275	0.82908	136.67	148.94	0.27468

P = 150 psia (T_sat = 105.09 °F)
T [°F]	v [ft³/lbm]	u [Btu/lbm]	h [Btu/lbm]	s [Btu/lbm·R]
Sat.	0.27316	94.587	102.17	0.19227
125	0.29526	99.367	107.56	0.20166
150	0.32025	105.28	114.17	0.21273
175	0.34328	111.19	120.72	0.22325
200	0.36496	117.13	127.26	0.23336
225	0.38569	123.14	133.84	0.24316
250	0.40569	129.22	140.48	0.25268
275	0.42512	135.40	147.20	0.26198

P = 250 psia (T_sat = 143.91 °F)
T [°F]	v [ft³/lbm]	u [Btu/lbm]	h [Btu/lbm]	s [Btu/lbm·R]
Sat.	0.15150	99.146	106.16	0.19268
150	0.15749	100.91	108.20	0.19606
175	0.17835	107.74	115.99	0.20858
200	0.19587	114.25	123.31	0.21990
225	0.21155	120.65	130.43	0.23049
250	0.22604	127.02	137.48	0.24060
275	0.23972	133.42	144.51	0.25033

P = 400 psia (T_sat = 184.03 °F)
T [°F]	v [ft³/lbm]	u [Btu/lbm]	h [Btu/lbm]	s [Btu/lbm·R]
Sat.	0.076007	101.02	106.65	0.18867
200	0.093090	107.74	114.63	0.20093
225	0.10988	115.77	123.90	0.21474
250	0.12294	123.02	132.12	0.22653
275	0.13423	129.99	139.92	0.23734

P = 600 psia
T [°F]	v [ft³/lbm]	u [Btu/lbm]	h [Btu/lbm]	s [Btu/lbm·R]
225	0.038302	100.30	104.55	0.18255
250	0.061258	115.03	121.83	0.20741
275	0.073734	124.07	132.26	0.22186

P = 1000 psia
T [°F]	v [ft³/lbm]	u [Btu/lbm]	h [Btu/lbm]	s [Btu/lbm·R]
225	0.020515	85.483	89.279	0.15766
250	0.023620	96.229	100.60	0.17389
275	0.028819	107.86	113.20	0.19134

Sources

Values computed by Simuveliq with CoolProp 8.0.0 (downloaded from PyPI, code on GitHub), free software under the MIT license. The temperatures and pressures of the table were chosen by Simuveliq; no table was copied from a book.

Equation of state: Eric W. Lemmon, Ryo Akasaka (2022). Equation of State for the Thermodynamic Properties of 2,3,3,3-Tetrafluoroprop-1-ene (R1234yf). Int. J. Thermophys. 43, 119. doi:10.1007/s10765-022-03015-y
CoolProp: Bell, Ian H., Wronski, Jorrit, Quoilin, Sylvain, Lemort, Vincent (2014). Pure and Pseudo-pure Fluid Thermophysical Property Evaluation and the Open-Source Thermophysical Property Library CoolProp. Ind. Eng. Chem. Res. 53, 2498–2508. doi:10.1021/ie4033999

Full sources and licenses

Tables

Water: saturation (T) · saturation (P) · superheated vapor · compressed liquid
R-134a: saturation (T) · saturation (P) · superheated vapor
R-22: saturation (T) · saturation (P) · superheated vapor
R-32: saturation (T) · saturation (P) · superheated vapor
R-404A: saturation (T) · saturation (P) · superheated vapor
R-410A: saturation (T) · saturation (P) · superheated vapor
R-1234yf: saturation (T) · saturation (P) · superheated vapor
Ammonia (R-717): saturation (T) · saturation (P) · superheated vapor
Carbon dioxide (R-744): saturation (T) · saturation (P) · superheated vapor
Propane (R-290): saturation (T) · saturation (P) · superheated vapor
Isobutane (R-600a): saturation (T) · saturation (P) · superheated vapor
Nitrogen: saturation (T) · saturation (P) · superheated vapor
Oxygen: saturation (T) · saturation (P) · superheated vapor
Hydrogen: saturation (T) · saturation (P) · superheated vapor
Helium: saturation (T) · saturation (P) · superheated vapor
Argon: saturation (T) · saturation (P) · superheated vapor
Methane: saturation (T) · saturation (P) · superheated vapor
Air: ideal gas
Nitrogen (N₂) per mole: ideal gas
Oxygen (O₂) per mole: ideal gas
Carbon dioxide (CO₂) per mole: ideal gas
Carbon monoxide (CO) per mole: ideal gas
Hydrogen (H₂) per mole: ideal gas
Water vapor (H₂O) per mole: ideal gas
critical constants and molar mass
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