Related Resources: thermodynamics

Enthalpy and Entropy of Saturated R-410a

Thermodynamics
Heat Transfer

Thermodynamic Properties of Saturated R-410a Tables for Temperatures -°60 to °71.3 C Enthalpy and Entropy.

Where:

v = Specific volume
u = Specific internal energy
h = Specific enthalpy
s = Specific entropy

Temp. (°C)	Press. (kPa)	Enthalpy, kJ/kg			Entropy, kJ/kg-K
		Sat. Liquid hf	Evap. hfg	Sat. Vapor hg	Sat. Liquid sf	Evap. sfg	Sat. Vapor sg
− 60	64.1	− 27.45	279.96	252.51	− 0.1227	1.3135	1.1907
− 55	84.0	− 20.64	275.83	255.19	− 0.0912	1.2644	1.1732
− 51.4	101.3	− 15.70	272.78	257.08	− 0.0688	1.2301	1.1613
− 50	108.7	− 13.80	271.60	257.80	− 0.0603	1.2171	1.1568
− 45	138.8	− 6.92	267.27	260.35	− 0.0299	1.1715	1.1416
− 40	175.0	0.00	262.83	262.83	0.0000	1.1273	1.1273
− 35	218.4	6.97	258.26	265.23	0.0294	1.0844	1.1139
− 30	269.6	13.99	253.55	267.54	0.0585	1.0428	1.1012
− 25	329.7	21.08	248.69	269.77	0.0871	1.0022	1.0893
− 20	399.6	28.24	243.65	271.89	0.1154	0.9625	1.0779
− 15	480.4	35.47	238.42	273.90	0.1435	0.9236	1.0671
− 10	573.1	42.80	232.98	275.78	0.1713	0.8854	1.0567
− 5	678.9	50.22	227.31	277.53	0.1989	0.8477	1.0466
0	798.7	57.76	221.37	279.12	0.2264	0.8104	1.0368
5	933.9	65.41	215.13	280.55	0.2537	0.7734	1.0272
10	1085.7	73.21	208.57	281.78	0.2810	0.7366	1.0176
15	1255.4	81.15	201.64	282.79	0.3083	0.6998	1.0081
20	1444.2	89.27	194.28	283.55	0.3357	0.6627	0.9984
25	1653.6	97.59	186.43	284.02	0.3631	0.6253	0.9884
30	1885.1	106.14	178.02	284.16	0.3908	0.5872	0.9781
35	2140.2	114.95	168.94	283.89	0.4189	0.5482	0.9671
40	2420.7	124.09	159.04	283.13	0.4473	0.5079	0.9552
45	2728.3	133.61	148.14	281.76	0.4765	0.4656	0.9421
50	3065.2	143.65	135.93	279.58	0.5067	0.4206	0.9273
55	3433.7	154.41	121.89	276.30	0.5384	0.3715	0.9099
60	3836.9	166.28	105.04	271.33	0.5729	0.3153	0.8882
65	4278.3	180.32	82.95	263.26	0.6130	0.2453	0.8583
70	4763.1	202.24	43.40	245.64	0.6752	0.1265	0.8017
71.3	4901.2	226.46	0	226.46	0.7449	0	0.7449

Temperature Conversions

• °C to °F or Celsius to Fahrenheit Calculator °F = °C x 5 / 9 + 32
• °F to °C or Fahrenheit to Celsius Calculator °C = (°F - 32 ) x 5 / 9

Pressure Conversions

• kPa to psi, 0.145038 lbs/in² = 1kPa / 6.89479 (kPa / psi) or Divide kPa by 6.89479
• psi to kPa, 6.89476 kPa = 1 psi (multiply psi by 6.89476)

Energy Conversions

• BTU/lbs to kJ/kg, 1 kJ/k = 0.429923 BTU/lbs ( multiple BTU/lbs by 0.429923 )
• kJ / kg to Btu / lbs, 1 BTU/lbs = 2.326 kJ/kg ( divide kJ/kg by 2.326 )