R-32 saturation table by temperature

Name: R-32 saturation table by temperature
Creator: Simuveliq

This table gives saturation pressure, specific volume, internal energy, enthalpy and entropy of saturated liquid and vapor for each temperature. 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

		Specific volume [m³/kg]		Internal energy [kJ/kg]			Enthalpy [kJ/kg]			Entropy [kJ/kg·K]
T [°C]	P_sat [kPa]	v_f	v_g	u_f	u_fg	u_g	h_f	h_fg	h_g	s_f	s_fg	s_g
−95	5.8957	0.0007539	4.7977	−86.607	396.58	309.97	−86.602	424.86	338.25	−0.42270	2.3848	1.9621
−90	8.8687	0.0007611	3.2721	−78.814	391.18	312.37	−78.808	420.20	341.39	−0.37957	2.2943	1.9147
−85	13.011	0.0007685	2.2856	−71.022	385.76	314.74	−71.011	415.48	344.47	−0.33759	2.2083	1.8707
−80	18.654	0.0007762	1.6316	−63.224	380.29	317.06	−63.210	410.71	347.50	−0.29669	2.1264	1.8297
−75	26.189	0.0007840	1.1880	−55.418	374.76	319.35	−55.397	405.86	350.46	−0.25678	2.0482	1.7914
−70	36.067	0.0007922	0.88072	−47.598	369.18	321.58	−47.570	400.92	353.35	−0.21781	1.9735	1.7557
−65	48.798	0.0008006	0.66378	−39.761	363.53	323.77	−39.722	395.88	356.16	−0.17970	1.9019	1.7222
−60	64.955	0.0008092	0.50786	−31.902	357.80	325.89	−31.849	390.73	358.88	−0.14238	1.8331	1.6907
−55	85.172	0.0008182	0.39394	−24.016	351.98	327.96	−23.946	385.46	361.51	−0.10581	1.7670	1.6611
−50	110.14	0.0008276	0.30944	−16.099	346.06	329.97	−16.008	380.06	364.05	−0.069924	1.7031	1.6332
−45	140.62	0.0008373	0.24587	−8.1452	340.05	331.90	−8.0275	374.50	366.48	−0.034670	1.6415	1.6068
−40	177.41	0.0008473	0.19743	−0.15033	333.92	333.76	−0.00000000	368.79	368.79	−0.00000000	1.5818	1.5818
−35	221.38	0.0008579	0.16006	7.8911	327.66	335.55	8.0810	362.90	370.99	0.034134	1.5238	1.5580
−30	273.44	0.0008688	0.13091	15.985	321.27	337.25	16.222	356.83	373.05	0.067778	1.4675	1.5353
−25	334.56	0.0008803	0.10792	24.136	314.73	338.87	24.431	350.54	374.97	0.10098	1.4126	1.5136
−20	405.75	0.0008924	0.089628	32.352	308.03	340.38	32.714	344.03	376.75	0.13377	1.3590	1.4928
−15	488.07	0.0009051	0.074927	40.639	301.15	341.79	41.080	337.28	378.36	0.16621	1.3065	1.4727
−10	582.63	0.0009185	0.063013	49.004	294.08	343.08	49.539	330.25	379.79	0.19833	1.2550	1.4533
−5	690.58	0.0009326	0.053280	57.456	286.79	344.24	58.100	322.94	381.04	0.23018	1.2043	1.4345
0	813.10	0.0009476	0.045267	66.004	279.26	345.27	66.774	315.30	382.07	0.26181	1.1543	1.4161
5	951.45	0.0009636	0.038624	74.658	271.47	346.13	75.575	307.31	382.88	0.29325	1.1048	1.3981
10	1106.9	0.0009807	0.033077	83.431	263.39	346.82	84.517	298.92	383.43	0.32458	1.0557	1.3803
15	1280.8	0.0009991	0.028417	92.337	254.97	347.31	93.617	290.09	383.71	0.35583	1.0067	1.3626
20	1474.6	0.001019	0.024476	101.39	246.19	347.58	102.89	280.78	383.67	0.38708	0.95779	1.3449
25	1689.6	0.001041	0.021124	110.62	236.97	347.59	112.38	270.91	383.28	0.41840	0.90863	1.3270
30	1927.5	0.001064	0.018256	120.04	227.27	347.31	122.09	260.41	382.50	0.44988	0.85901	1.3089
35	2189.8	0.001090	0.015787	129.69	217.00	346.69	132.08	249.18	381.26	0.48163	0.80863	1.2903
40	2478.3	0.001120	0.013648	139.61	206.04	345.65	142.39	237.09	379.48	0.51378	0.75713	1.2709
45	2794.8	0.001153	0.011784	149.86	194.27	344.13	153.08	223.99	377.07	0.54653	0.70403	1.2506
50	3141.2	0.001192	0.010147	160.52	181.49	342.00	164.26	209.62	373.88	0.58013	0.64867	1.2288
55	3519.9	0.001237	0.0086965	171.71	167.39	339.09	176.06	193.64	369.70	0.61495	0.59011	1.2050
60	3933.2	0.001293	0.0073957	183.62	151.51	335.13	188.70	175.51	364.21	0.65159	0.52683	1.1784
65	4384.3	0.001366	0.0062077	196.59	133.03	329.61	202.57	154.25	356.83	0.69114	0.45617	1.1473
70	4876.8	0.001469	0.0050842	211.35	110.15	321.50	218.51	127.78	346.29	0.73586	0.37238	1.1082
75	5416.8	0.001650	0.0039126	230.22	77.079	307.30	239.16	89.333	328.50	0.79317	0.25659	1.0498

The table as text, English units

		Specific volume [ft³/lbm]		Internal energy [Btu/lbm]			Enthalpy [Btu/lbm]			Entropy [Btu/lbm·R]
T [°F]	P_sat [psia]	v_f	v_g	u_f	u_fg	u_g	h_f	h_fg	h_g	s_f	s_fg	s_g
−140	0.81582	0.01206	80.317	−37.606	170.75	133.15	−37.605	182.88	145.27	−0.10212	0.57208	0.46996
−130	1.2863	0.01219	52.414	−33.884	168.18	134.29	−33.881	180.65	146.77	−0.090658	0.54798	0.45732
−120	1.9663	0.01232	35.229	−30.161	165.59	135.42	−30.157	178.40	148.24	−0.079534	0.52521	0.44568
−110	2.9225	0.01246	24.316	−26.436	162.97	136.53	−26.429	176.11	149.68	−0.068724	0.50365	0.43493
−100	4.2348	0.01260	17.190	−22.706	160.32	137.62	−22.696	173.78	151.09	−0.058205	0.48317	0.42497
−90	5.9959	0.01275	12.417	−18.967	157.64	138.68	−18.953	171.41	152.45	−0.047953	0.46367	0.41572
−80	8.3124	0.01290	9.1470	−15.218	154.92	139.71	−15.199	168.97	153.78	−0.037946	0.44506	0.40711
−70	11.304	0.01306	6.8579	−11.457	152.16	140.71	−11.429	166.48	155.05	−0.028165	0.42723	0.39907
−60	15.105	0.01322	5.2246	−7.6789	149.35	141.67	−7.6419	163.92	156.28	−0.018592	0.41013	0.39154
−50	19.861	0.01339	4.0383	−3.8826	146.48	142.60	−3.8333	161.28	157.44	−0.0092093	0.39367	0.38447
−40	25.731	0.01357	3.1625	−0.064630	143.56	143.49	0.00000000	158.55	158.55	0	0.37780	0.37780
−30	32.887	0.01376	2.5062	3.7780	140.57	144.34	3.8618	155.74	159.60	0.0090513	0.36245	0.37150
−20	41.511	0.01396	2.0076	7.6487	137.50	145.15	7.7559	152.81	160.57	0.017959	0.34757	0.36553
−10	51.796	0.01417	1.6237	11.551	134.36	145.91	11.687	149.78	161.47	0.026739	0.33310	0.35984
0	63.947	0.01438	1.3248	15.488	131.12	146.61	15.658	146.63	162.29	0.035404	0.31899	0.35440
10	78.179	0.01462	1.0894	19.465	127.79	147.26	19.677	143.34	163.02	0.043969	0.30519	0.34916
20	94.715	0.01486	0.90205	23.486	124.35	147.84	23.746	139.90	163.65	0.052449	0.29166	0.34411
30	113.79	0.01512	0.75157	27.556	120.79	148.35	27.875	136.30	164.17	0.060857	0.27834	0.33920
40	135.65	0.01541	0.62958	31.681	117.09	148.77	32.068	132.51	164.57	0.069210	0.26519	0.33440
50	160.54	0.01571	0.52985	35.869	113.24	149.11	36.336	128.51	164.85	0.077524	0.25215	0.32967
60	188.74	0.01604	0.44765	40.127	109.21	149.34	40.687	124.28	164.97	0.085818	0.23916	0.32498
70	220.52	0.01640	0.37939	44.466	104.98	149.44	45.135	119.79	164.93	0.094113	0.22616	0.32027
80	256.18	0.01679	0.32228	48.897	100.52	149.41	49.693	115.00	164.69	0.10243	0.21309	0.31552
90	296.02	0.01723	0.27414	53.439	95.778	149.22	54.382	109.85	164.23	0.11081	0.19985	0.31066
100	340.37	0.01772	0.23326	58.110	90.715	148.82	59.227	104.29	163.52	0.11929	0.18634	0.30563
110	389.58	0.01828	0.19828	62.942	85.253	148.19	64.260	98.230	162.49	0.12791	0.17243	0.30034
120	444.04	0.01894	0.16809	67.975	79.290	147.26	69.531	91.546	161.08	0.13676	0.15793	0.29468
130	504.17	0.01973	0.14176	73.272	72.671	145.94	75.113	84.055	159.17	0.14594	0.14255	0.28848
140	570.47	0.02071	0.11847	78.940	65.138	144.08	81.127	75.457	156.58	0.15563	0.12583	0.28146
150	643.51	0.02203	0.097404	85.176	56.212	141.39	87.799	65.188	152.99	0.16619	0.10692	0.27311
160	724.09	0.02401	0.077455	92.443	44.749	137.19	95.660	51.911	147.57	0.17841	0.083772	0.26219
170	813.58	0.02838	0.054887	102.92	25.340	128.26	107.20	29.331	136.53	0.19618	0.046581	0.24277

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: R. Tillner-Roth, A. Yokozeki (1997). An international standard equation of state for difluoromethane (R-32) for temperatures from the triple point at 136.34 K to 435 K and pressures up to 70 MPa. J. Phys. Chem. Ref. Data 26, 1273–1328. doi:10.1063/1.556002
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

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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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