Methane saturation table by pressure

Name: Methane saturation table by pressure
Creator: Simuveliq

This table gives saturation temperature and properties of saturated liquid and vapor for each pressure. 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: NBP: h = 0 and s = 0 for saturated liquid at the normal boiling point (1 atm).

The table as text, SI units

		Specific volume [m³/kg]		Internal energy [kJ/kg]			Enthalpy [kJ/kg]			Entropy [kJ/kg·K]
P [kPa]	T_sat [°C]	v_f	v_g	u_f	u_fg	u_g	h_f	h_fg	h_g	s_f	s_fg	s_g
15	−180.48	0.002228	3.1726	−65.178	493.89	428.71	−65.145	541.44	476.30	−0.63721	5.8425	5.2053
20	−178.07	0.002244	2.4360	−57.046	489.26	432.22	−57.001	537.94	480.94	−0.55057	5.6578	5.1072
25	−176.11	0.002258	1.9850	−50.398	485.44	435.05	−50.342	535.01	484.67	−0.48137	5.5132	5.0318
30	−174.44	0.002269	1.6795	−44.729	482.16	437.43	−44.661	532.48	487.81	−0.42344	5.3942	4.9708
40	−171.67	0.002289	1.2903	−35.313	476.64	441.33	−35.222	528.16	492.94	−0.32936	5.2047	4.8754
50	−169.41	0.002306	1.0517	−27.581	472.05	444.46	−27.465	524.52	497.05	−0.25399	5.0562	4.8022
60	−167.48	0.002320	0.88999	−20.961	468.06	447.10	−20.821	521.32	500.50	−0.19075	4.9336	4.7428
80	−164.28	0.002345	0.68376	−9.9142	461.31	451.40	−9.7265	515.83	506.10	−0.087754	4.7378	4.6501
100	−161.64	0.002366	0.55722	−0.79398	455.63	454.84	−0.55734	511.12	510.56	−0.0049665	4.5837	4.5788
150	−156.50	0.002410	0.38389	17.166	444.15	461.32	17.528	501.37	518.90	0.15253	4.2979	4.4504
200	−152.53	0.002445	0.29441	31.137	434.92	466.06	31.626	493.31	524.94	0.27035	4.0898	4.3601
250	−149.25	0.002476	0.23944	42.770	427.02	469.79	43.389	486.26	529.65	0.36557	3.9247	4.2902
300	−146.44	0.002504	0.20208	52.847	420.01	472.85	53.598	479.88	533.48	0.44605	3.7871	4.2331
400	−141.71	0.002553	0.15434	69.909	407.75	477.66	70.931	468.47	539.40	0.57838	3.5642	4.1426
500	−137.80	0.002597	0.12497	84.241	397.07	481.31	85.540	458.25	543.79	0.68597	3.3857	4.0716
600	−134.42	0.002638	0.10500	96.751	387.42	484.18	98.334	448.84	547.18	0.77743	3.2354	4.0128
800	−128.74	0.002712	0.079448	118.16	370.19	488.35	120.33	431.58	551.91	0.92900	2.9886	3.9176
1000	−124.01	0.002781	0.063702	136.38	354.74	491.11	139.16	415.66	554.81	1.0535	2.7870	3.8406
1500	−114.62	0.002944	0.041986	173.96	320.25	494.21	178.37	378.81	557.18	1.2992	2.3896	3.6887
2000	−107.28	0.003107	0.030634	205.18	288.50	493.68	211.39	343.56	554.95	1.4934	2.0712	3.5646
2500	−101.16	0.003283	0.023530	233.06	257.30	490.36	241.26	307.92	549.18	1.6608	1.7903	3.4511
3000	−95.876	0.003485	0.018560	259.28	224.97	484.25	269.74	270.19	539.93	1.8141	1.5241	3.3382
4000	−87.039	0.004096	0.011583	313.33	146.08	459.41	329.71	176.03	505.74	2.1231	0.94581	3.0689

The table as text, English units

		Specific volume [ft³/lbm]		Internal energy [Btu/lbm]			Enthalpy [Btu/lbm]			Entropy [Btu/lbm·R]
P [psia]	T_sat [°F]	v_f	v_g	u_f	u_fg	u_g	h_f	h_fg	h_g	s_f	s_fg	s_g
2	−294.08	0.03562	54.907	−29.007	212.89	183.88	−28.994	233.20	204.20	−0.15812	1.4083	1.2502
2.5	−290.80	0.03581	44.728	−26.358	211.39	185.03	−26.341	232.06	205.72	−0.14228	1.3742	1.2319
3	−288.00	0.03598	37.835	−24.103	210.10	186.00	−24.083	231.09	207.00	−0.12904	1.3461	1.2171
4	−283.39	0.03626	29.060	−20.367	207.95	187.59	−20.340	229.43	209.09	−0.10756	1.3015	1.1940
5	−279.62	0.03650	23.684	−17.306	206.17	188.86	−17.272	228.05	210.78	−0.090380	1.2666	1.1762
6	−276.41	0.03671	20.041	−14.691	204.63	189.94	−14.651	226.84	212.19	−0.075985	1.2378	1.1618
8	−271.09	0.03706	15.398	−10.340	202.03	191.69	−10.285	224.77	214.49	−0.052576	1.1919	1.1393
10	−266.73	0.03736	12.552	−6.7578	199.86	193.10	−6.6887	223.02	216.33	−0.033795	1.1559	1.1221
15	−258.22	0.03796	8.6545	0.26903	195.50	195.77	0.37440	219.42	219.79	0.0018500	1.0892	1.0911
20	−251.69	0.03845	6.6444	5.7098	192.03	197.74	5.8521	216.48	222.33	0.028437	1.0409	1.0693
25	−246.30	0.03887	5.4101	10.223	189.09	199.31	10.403	213.94	224.34	0.049870	1.0027	1.0525
30	−241.68	0.03924	4.5716	14.120	186.49	200.61	14.338	211.65	225.99	0.067948	0.97093	1.0389
40	−233.95	0.03990	3.5009	20.692	181.99	202.68	20.987	207.61	228.59	0.097590	0.91977	1.0174
50	−227.56	0.04048	2.8426	26.184	178.11	204.29	26.559	204.04	230.59	0.12161	0.87904	1.0006
60	−222.05	0.04100	2.3952	30.957	174.64	205.60	31.412	200.78	232.19	0.14195	0.84495	0.98690
80	−212.80	0.04194	1.8231	39.073	168.52	207.60	39.694	194.89	234.59	0.17550	0.78945	0.96496
100	−205.12	0.04280	1.4710	45.926	163.13	209.05	46.718	189.56	236.27	0.20290	0.74467	0.94756
150	−189.89	0.04473	0.98655	59.871	151.43	211.30	61.112	177.57	238.68	0.25626	0.65820	0.91446
200	−177.99	0.04653	0.73487	71.200	141.12	212.31	72.922	166.59	239.51	0.29756	0.59141	0.88898
250	−168.07	0.04831	0.57908	81.032	131.50	212.53	83.267	156.05	239.32	0.33212	0.53515	0.86727
300	−159.48	0.05014	0.47220	89.916	122.20	212.12	92.700	145.63	238.33	0.36246	0.48513	0.84759
400	−145.02	0.05419	0.33279	106.06	103.56	209.62	110.07	124.18	234.25	0.41582	0.39466	0.81048
500	−133.02	0.05937	0.24235	121.47	83.133	204.60	126.96	100.06	227.02	0.46519	0.30633	0.77152
600	−122.75	0.06782	0.17207	138.44	56.485	194.93	145.97	68.059	214.03	0.51892	0.20200	0.72093

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: U. Setzmann, W. Wagner (1991). A New Equation of State and Tables of Thermodynamic Properties for Methane Covering the Range from the Melting Line to 625 K at Pressures up to 1000 MPa. J. Phys. Chem. Ref. Data 20, 1061–1151. doi:10.1063/1.555898
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

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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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