Saturated Steam - Properties - Imperial Units
Steam table with sensible, latent and total heat, and specific volume at different gauge pressures and temperatures.
Sensible, latent and total heat in evaporated water - steam - at different gauge pressures and boiling temperatures.
Gauge Pressure (psig) | Temperature (oF) | Specific Volume Saturated Vapor (ft3/lb) | Enthalpy | ||
---|---|---|---|---|---|
Saturated Liquid (Btu/lb) | Evaporated (Btu/lb) | Saturated Vapor (Btu/lb) | |||
25 (Inches Mercury Vacuum) |
134 | 142 | 102 | 1017 | 1119 |
20 (Inches Mercury Vacuum) |
162 | 73.9 | 129 | 1001 | 1130 |
15 (Inches Mercury Vacuum) |
179 | 51.3 | 147 | 990 | 1137 |
10 (Inches Mercury Vacuum) |
192 | 39.4 | 160 | 982 | 1142 |
5 (Inches Mercury Vacuum) |
203 | 31.8 | 171 | 976 | 1147 |
0 1) | 212 | 26.8 | 180 | 970 | 1150 |
1 | 215 | 25.2 | 183 | 968 | 1151 |
2 | 219 | 23.5 | 187 | 966 | 1153 |
3 | 222 | 22.3 | 190 | 964 | 1154 |
4 | 224 | 21.4 | 192 | 962 | 1154 |
5 | 227 | 20.1 | 195 | 960 | 1155 |
6 | 230 | 19.4 | 198 | 959 | 1157 |
7 | 232 | 18.7 | 200 | 957 | 1157 |
8 | 233 | 18.4 | 201 | 956 | 1157 |
9 | 237 | 17.1 | 205 | 954 | 1159 |
10 | 239 | 16.5 | 207 | 953 | 1160 |
12 | 244 | 15.3 | 212 | 949 | 1161 |
14 | 248 | 14.3 | 216 | 947 | 1163 |
16 | 252 | 13.4 | 220 | 944 | 1164 |
18 | 256 | 12.6 | 224 | 941 | 1165 |
20 | 259 | 11.9 | 227 | 939 | 1166 |
22 | 262 | 11.3 | 230 | 937 | 1167 |
24 | 265 | 10.8 | 233 | 934 | 1167 |
26 | 268 | 10.3 | 236 | 933 | 1169 |
28 | 271 | 9.85 | 239 | 930 | 1169 |
30 | 274 | 9.46 | 243 | 929 | 1172 |
32 | 277 | 9.1 | 246 | 927 | 1173 |
34 | 279 | 8.75 | 248 | 925 | 1173 |
36 | 282 | 8.42 | 251 | 923 | 1174 |
38 | 284 | 8.08 | 253 | 922 | 1175 |
40 | 286 | 7.82 | 256 | 920 | 1176 |
42 | 289 | 7.57 | 258 | 918 | 1176 |
44 | 291 | 7.31 | 260 | 917 | 1177 |
46 | 293 | 7.14 | 262 | 915 | 1177 |
48 | 295 | 6.94 | 264 | 914 | 1178 |
50 | 298 | 6.68 | 267 | 912 | 1179 |
55 | 300 | 6.27 | 271 | 909 | 1180 |
60 | 307 | 5.84 | 277 | 906 | 1183 |
65 | 312 | 5.49 | 282 | 901 | 1183 |
70 | 316 | 5.18 | 286 | 898 | 1184 |
75 | 320 | 4.91 | 290 | 895 | 1185 |
80 | 324 | 4.67 | 294 | 891 | 1185 |
85 | 328 | 4.44 | 298 | 889 | 1187 |
90 | 331 | 4.24 | 302 | 886 | 1188 |
95 | 335 | 4.05 | 305 | 883 | 1188 |
100 | 338 | 3.89 | 309 | 880 | 1189 |
105 | 341 | 3.74 | 312 | 878 | 1190 |
110 | 344 | 3.59 | 316 | 875 | 1191 |
115 | 347 | 3.46 | 319 | 873 | 1192 |
120 | 350 | 3.34 | 322 | 871 | 1193 |
125 | 353 | 3.23 | 325 | 868 | 1193 |
130 | 356 | 3.12 | 328 | 866 | 1194 |
135 | 358 | 3.02 | 330 | 864 | 1194 |
140 | 361 | 2.92 | 333 | 861 | 1194 |
145 | 363 | 2.84 | 336 | 859 | 1195 |
150 | 366 | 2.74 | 339 | 857 | 1196 |
155 | 368 | 2.68 | 341 | 855 | 1196 |
160 | 371 | 2.6 | 344 | 853 | 1197 |
165 | 373 | 2.54 | 346 | 851 | 1197 |
170 | 375 | 2.47 | 348 | 849 | 1197 |
175 | 377 | 2.41 | 351 | 847 | 1198 |
180 | 380 | 2.35 | 353 | 845 | 1198 |
185 | 382 | 2.29 | 355 | 843 | 1198 |
190 | 384 | 2.24 | 358 | 841 | 1199 |
195 | 386 | 2.19 | 360 | 839 | 1199 |
200 | 388 | 2.14 | 362 | 837 | 1199 |
205 | 390 | 2.09 | 364 | 836 | 1200 |
210 | 392 | 2.05 | 366 | 834 | 1200 |
215 | 394 | 2 | 368 | 832 | 1200 |
220 | 396 | 1.96 | 370 | 830 | 1200 |
225 | 397 | 1.92 | 372 | 828 | 1200 |
230 | 399 | 1.89 | 374 | 827 | 1201 |
235 | 401 | 1.85 | 376 | 825 | 1201 |
240 | 403 | 1.81 | 378 | 823 | 1201 |
245 | 404 | 1.78 | 380 | 822 | 1202 |
250 | 406 | 1.75 | 382 | 820 | 1202 |
255 | 408 | 1.72 | 383 | 819 | 1202 |
260 | 409 | 1.69 | 385 | 817 | 1202 |
265 | 411 | 1.66 | 387 | 815 | 1202 |
270 | 413 | 1.63 | 389 | 814 | 1203 |
275 | 414 | 1.6 | 391 | 812 | 1203 |
280 | 416 | 1.57 | 392 | 811 | 1203 |
285 | 417 | 1.55 | 394 | 809 | 1203 |
290 | 418 | 1.53 | 395 | 808 | 1203 |
295 | 420 | 1.49 | 397 | 806 | 1203 |
300 | 421 | 1.47 | 398 | 805 | 1203 |
305 | 423 | 1.45 | 400 | 803 | 1203 |
310 | 425 | 1.43 | 402 | 802 | 1204 |
315 | 426 | 1.41 | 404 | 800 | 1204 |
320 | 427 | 1.38 | 405 | 799 | 1204 |
325 | 429 | 1.36 | 407 | 797 | 1204 |
330 | 430 | 1.34 | 408 | 796 | 1204 |
335 | 432 | 1.33 | 410 | 794 | 1204 |
340 | 433 | 1.31 | 411 | 793 | 1204 |
345 | 434 | 1.29 | 413 | 791 | 1204 |
350 | 435 | 1.28 | 414 | 790 | 1204 |
355 | 437 | 1.26 | 416 | 789 | 1205 |
360 | 438 | 1.24 | 417 | 788 | 1205 |
365 | 440 | 1.22 | 419 | 786 | 1205 |
370 | 441 | 1.2 | 420 | 785 | 1205 |
375 | 442 | 1.19 | 421 | 784 | 1205 |
380 | 443 | 1.18 | 422 | 783 | 1205 |
385 | 445 | 1.16 | 424 | 781 | 1205 |
390 | 446 | 1.14 | 425 | 780 | 1205 |
395 | 447 | 1.13 | 427 | 778 | 1205 |
400 | 448 | 1.12 | 428 | 777 | 1205 |
450 | 460 | 1 | 439 | 766 | 1205 |
500 | 470 | 0.89 | 453 | 751 | 1204 |
550 | 479 | 0.82 | 464 | 740 | 1204 |
600 | 489 | 0.74 | 475 | 728 | 1203 |
650 | 497 | 0.69 | 483 | 719 | 1202 |
700 | 505 | 0.64 | 491 | 710 | 1201 |
750 | 513 | 0.6 | 504 | 696 | 1200 |
800 | 520 | 0.56 | 512 | 686 | 1198 |
900 | 534 | 0.49 | 529 | 666 | 1195 |
1000 | 546 | 0.44 | 544 | 647 | 1191 |
1250 | 574 | 0.34 | 580 | 600 | 1180 |
1500 | 597 | 0.27 | 610 | 557 | 1167 |
1750 | 618 | 0.22 | 642 | 509 | 1151 |
2000 | 636 | 0.19 | 672 | 462 | 1134 |
2250 | 654 | 0.16 | 701 | 413 | 1114 |
2500 | 669 | 0.13 | 733 | 358 | 1091 |
2750 | 683 | 0.11 | 764 | 295 | 1059 |
3000 | 696 | 0.08 | 804 | 213 | 1017 |
3206.22) | 705.40 | - | - | - | - |
1) Atmospheric pressure is used for the table except for 2)
2) Critical Point - At 3206.2 psia and 705.40 oF the vapor and liquid are indistinguishable. No change of state occurs when pressure increases above the critical point or when heat is added. At the critical point it is no longer referred to water or steam and it is not possible keep the water and steam apart.
- 1 psi (lbf/in2) = 6894.8 Pa (N/m2) = 0.06895 bar
Note! Gauge Pressure = Absolute Pressure - Atmospheric Pressure
NTP - Normal Temperature and Pressure - is defined as 20oC (293.15 K, 68oF) and 1 atm ( 101.325 kN/m2, 101.325 kPa, 14.7 psia, 0 psig, 30 in Hg, 760 torr)
- Vacuum steam is the general term used for saturated steam at temperatures below 100°C.
Example - Boiling Water at 212 oF and 0 psig
At atmospheric pressure - 0 psig - water boils at 212 oF. 180 Btu/lb of energy is required to heat 1 lb of water to saturation temperature 212 oF.
Therefore, at 0 psig and 212 oF - the specific enthalpy of water is 180 Btu/lb.
Another 970 Btu/lb of energy is required to evaporate the 1 lb of water at 212 oF to steam at 212 oF. Therefore, at 0 psig - the specific enthalpy of evaporation is 970 Btu/lb.
The total specific enthalpy of the steam (or heat required to evaporate water to steam) at atmospheric pressure and 212 oF can be summarized to
hs = (180 Btu/lb) + ( 970 Btu/lb)
= 1150 Btu/lb
Related Topics
-
Flash Steam
Generation of flash steam in steam and condensate systems. Thermodynamic fundamentals, heat loss, energy recovery and more. -
Sizing of Steam and Condensate Pipes
Dimensions of steam and condensate pipe lines. Calculate pressure losses, recommended velocities, capacities and more. -
Steam and Condensate
Design of steam & condensate systems with properties, capacities, sizing of pipe lines, system configuration and more. -
Thermodynamics
Calculate heat, work, temperature and energy. The thermodynamics of steam and condensate systems. Water and Ice properties.
Related Documents
-
Condensate Pipes - Flash Steam Generated
Calculate flash steam generation in condensate pipe lines. -
Condensation of Steam - Heat Transfer
Heat transfer when steam condensates. -
Evaporation from a Water Surface
Evaporation of water from a water surface - like a swimming pool or an open tank - depends on water temperature, air temperature, air humidity and air velocity above the water surface - online calculator. -
Evaporative Cooling
Evaporative cooling tutorial. -
Flash Steam Energy Loss
When flash steam is generated and vented to the surroundings a considerable amount of energy is lost -
Flash Steam Generation - Fundamental Physics
Tutorial to the basic physics behind flash steam generation -
Flash Steam Generation - Imperial Units (psig)
When condensate passes steam traps - flash steam is generated. -
Flash Steam Generation - SI-units
When condensate leaves the steam traps - flash steam is generated. Amount of flash steam generated at different pressures - kN/m2. -
Heating Water by Injecting Steam
Water can be heated by injecting steam. -
Latent Heat Flow
Latent heat is the heat when supplied to or removed from air results in a change in moisture content - the temperature of the air is not changed. -
Properties of Saturated Steam - SI Units
Saturated Steam Table with steam properties as specific volume, density, specific enthalpy and specific entropy. -
Saturated Steam - Properties - Imperial Units
Steam table with sensible, latent and total heat, and specific volume at different gauge pressures and temperatures. -
Saturated Steam - Properties - Imperial Units
Steam table with sensible, latent and total heat, and specific volume at different gauge pressures and temperatures. -
Saturated Steam - Properties for Pressure in Bar
Saturated Steam Table with properties like boiling point, specific volume, density, specific enthalpy, specific heat and latent heat of vaporization. -
Sizing Steam Pipes (lb/h)
Steam is a compressible gas where the capacity of a pipe line depends on the size of the pipe and the steam pressure. -
Steam - Viscosity vs. Pressure
Absolute viscosity of steam at pressure ranging 1 - 10000 psia. -
Steam and Vapor Enthalpy
Vapor and steam enthalpy, specific enthalpy of saturated liquid, saturated vapor and superheated vapor. -
Steam Boiler Shells - Stress vs. Boiler Pressure
Calculate the stress in steam boiler shells caused by steam pressure. -
Steam Entropy
Basic steam thermodynamics - entropy diagram. -
Steam Heating Air
Calculate steam heated air systems. -
Steam Heating Systems - Classifications
Steam systems carries heat through pipes from the boiler to consumers as heat exchangers, process equipment etc. -
Steam Heating Systems - Design
An introduction to the basic design of steam heating systems. -
Steam Pipes - Online Pressure drop Calculator
Calculate pressure drops in steam distribution pipe lines. -
Steam Pipes - Pressure Drop vs. Steam Flow
Steam pipes and pressure drop diagrams - imperial and metric units. -
Steam Trap Selection Guide
Steam trap selection guide - Float & Thermostatic, Inverted Bucket, Bimetal Thermostatic, Impulse and Thermodynamic Disc steam traps. -
STP - Standard Temperature and Pressure and NTP - Normal Temperature and Pressure
The definition of STP - Standard Temperature and Pressure and NTP - Normal Temperature and Pressure. -
Superheated Steam - Enthalpy
Enthalpy of steam superheated to temperatures above it's boiling point. -
Vapor and Steam
An introduction to vapor and steam. -
Water - Enthalpy and Entropy vs. Temperature
Figures and tables showing the enthalpy and entropy of liquid water as function of temperature - SI and Imperial Units. -
Water - Saturation Pressure and Specific Weight vs. Temperature
Vapor pressure and specific weight of water at temperatures ranging 32 to 212 oF - Imperial Units. -
Water - Specific Volume vs. Temperature
Online calculator, figures and tables showing Specific Volume of water at temperatures ranging from 0-370 °C and 32 - 700 °F - Imperial and IS Units. -
Water - Thermophysical Properties
Thermal properties of water at different temperatures like density, freezing temperature, boiling temperature, latent heat of melting, latent heat of evaporation, critical temperature and more. -
Water-Steam Mollier Diagram
Enthalpy-entropy diagram for water and steam. -
Wet Steam - Enthalpy
Wet steam, dryness fraction and enthalpy. -
Wet Steam - Quality vs. Dryness Fractions
Introduction and definition of steam quality and dryness fraction including calculating wet steam enthalpy and specific volume.