Superheated Vapor Properties for Steam 4 (2/21/2009)

Superheated Vapor Properties for Steam - (4 MPa - 8 MPa)

**P=4.0 MPa (250.4°C)**
Temp	volume	energy	enthalpy	entropy
°C	v(m^3/kg)	u(kJ/kg)	h(kJ/kg)	s(kJ/kg.K)
Sat.	0.0498	2601.7	2800.8	6.070
275	0.0546	2668.9	2887.3	6.231
300	0.0589	2726.2	2961.7	6.364
350	0.0665	2827.4	3093.3	6.584
400	0.0734	2920.7	3214.5	6.771
450	0.0800	3011.0	3331.2	6.939
500	0.0864	3100.3	3446.0	7.092
600	0.0989	3279.4	3674.9	7.371
700	0.1110	3462.4	3906.3	7.621
800	0.1229	3650.6	4142.3	7.852
900	0.1348	3844.8	4383.9	8.067
1000	0.1465	4045.1	4631.2	8.270

**P=4.5 MPa (257.4°C)**
volume	energy	enthalpy	entropy
v(m^3/kg)	u(kJ/kg)	h(kJ/kg)	s(kJ/kg.K)
0.0441	2599.7	2797.9	6.020
0.0473	2651.3	2864.3	6.143
0.0514	2713.0	2944.2	6.285
0.0584	2818.6	3081.5	6.515
0.0648	2914.2	3205.6	6.707
0.0708	3005.8	3324.2	6.877
0.0765	3096.0	3440.4	7.032
0.0877	3276.4	3670.9	7.313
0.0985	3460.0	3903.3	7.565
0.1092	3648.8	4140.0	7.796
0.1197	3843.3	4382.1	8.012
0.1302	4043.9	4629.8	8.214

**P=5.0 MPa (263.9°C)**
volume	energy	enthalpy	entropy
v(m^3/kg)	u(kJ/kg)	h(kJ/kg)	s(kJ/kg.K)
0.0395	2597.0	2794.2	5.974
0.0414	2632.3	2839.5	6.057
0.0454	2699.0	2925.7	6.211
0.0520	2809.5	3069.3	6.452
0.0578	2907.5	3196.7	6.648
0.0633	3000.6	3317.2	6.821
0.0686	3091.7	3434.7	6.978
0.0787	3273.3	3666.8	7.261
0.0885	3457.7	3900.3	7.514
0.0982	3646.9	4137.7	7.746
0.1077	3841.8	4380.2	7.962
0.1172	4042.6	4628.3	8.165

**P=6.0 MPa (275.6°C)**
Temp	volume	energy	enthalpy	entropy
°C	v(m^3/kg)	u(kJ/kg)	h(kJ/kg)	s(kJ/kg.K)
Sat.	0.0325	2589.9	2784.6	5.890
300	0.0362	2668.4	2885.5	6.070
350	0.0423	2790.4	3043.9	6.336
400	0.0474	2893.7	3178.2	6.543
450	0.0522	2989.9	3302.9	6.722
500	0.0567	3083.1	3423.1	6.883
600	0.0653	3267.2	3658.7	7.169
700	0.0736	3453.0	3894.3	7.425
800	0.0817	3643.2	4133.1	7.658
900	0.0896	3838.8	4376.6	7.875
1000	0.0976	4040.1	4625.4	8.079

**P=7.0 MPa (285.8°C)**
volume	energy	enthalpy	entropy
v(m^3/kg)	u(kJ/kg)	h(kJ/kg)	s(kJ/kg.K)
0.0274	2581.0	2772.6	5.815
0.0295	2633.5	2839.9	5.934
0.0353	2770.1	3016.9	6.230
0.0400	2879.5	3159.2	6.450
0.0442	2979.0	3288.3	6.635
0.0482	3074.3	3411.4	6.800
0.0557	3260.9	3650.6	7.091
0.0629	3448.3	3888.2	7.349
0.0699	3639.5	4128.4	7.584
0.0768	3835.7	4373.0	7.801
0.0836	4037.5	4622.5	8.006

**P=8.0 MPa (295.0°C)**
volume	energy	enthalpy	entropy
v(m^3/kg)	u(kJ/kg)	h(kJ/kg)	s(kJ/kg.K)
0.0235	2570.5	2758.7	5.745
0.0243	2592.3	2786.5	5.794
0.0300	2748.3	2988.1	6.132
0.0343	2864.6	3139.4	6.366
0.0382	2967.8	3273.3	6.558
0.0418	3065.4	3399.5	6.727
0.0485	3254.7	3642.4	7.022
0.0548	3443.6	3882.2	7.282
0.0610	3635.7	4123.8	7.518
0.0671	3832.6	4369.3	7.737
0.0731	4035.0	4619.6	7.942

Source of data: NIST Chemistry WebBook - accessed Jan 2008

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