SEAWATER DENSITY & VISCOSITY CALCULATOR

Please enter the values of salinity and temperature of the effluent or ambient water (p=1atm):

Salinity:Sal = 39.64 ppt

Temperature: T = 107.00 °C

Density: 982.728 kg/m³

Dynamic Viscosity: 0.291

Kinematic Viscosity: 0.296

source:

El-Dessouky, Ettouny (2002): Fundamentals of Sea Water Desalination (Appendix A: Themodynamic Prop

Density of sea water as a function of salinity and temperature

Salinity: 0 to 160 ppt, Temperature: 10 to 180 °C, Pressure: p = 1 atm

The density correlation of sea water is given by:

[kg/m³]

where:F1 = 0.5 G1 = 0.5 A1 = 4.032219 G1 + 0.115313 G2 + 3.26*10-4 G3F2 = A G2 = B A2 = -0.108199 G1 + 1.571*10-3 G2 - 4.23 * 10-4 G3F3 = 2A² - 1 G3 = 2B² - 1 A3 = -0.012247 G1 + 1.74*10-3 G2 - 9.0*10-6 G3F4 = 4A³ - 3A A4 = 6.92*10-4 G1 - 8.7*10-5 G2 - 5.3*10-5 G3

A = (2T-200)/160 B = (2Sal-150)/150

Viscosity of sea water as a function of salinity and temperature

Salinity: 0 to 130 ppt, Temperature: 10 to 180 °C, Pressure: p = 1 atm

The dynamic viscosity correlation of sea water is given by:

[kg/m s]

[m²/s]

where:-3.79418 + 604.129/(139.18+T)

for : 0 Sal 160 ppt

for : 0 Sal 130 ppt

10 T 180 °C

=

*10-3 kg/m s

*10-6 m²/s

= (A1F1 + A2F2 + A3F3 + A4F4)*10³

= (W)(R)*10-3

= /

Ln(W) =

1 + A*Sal + B*Sal²

A =

B =

R =

1.474*10-3 + 1.5*10-5 T - 3.927*10-8 T2

1.0734*10-5 - 8.5*10-8 T +2.23*10-10 T2

Please enter the values of salinity and temperature of the effluent or ambient water (p=1atm):

El-Dessouky, Ettouny (2002): Fundamentals of Sea Water Desalination (Appendix A: Themodynamic Properties)

El-Dessouky, Ettouny (2002): Fundamentals of Sea Water Desalination (Appendix A: Themodynamic Properties)

Variation in density [kg/m³] as a function of temperature [°C] and salinity [ppt]

Salinity [ppt]T [°C] 0 10 20 30 40 50 60 70 80 90

10 ### ### ### ### ### ### ### ### ### ###15 999.647 ### ### ### ### ### ### ### ### ###20 998.402 ### ### ### ### ### ### ### ### ###25 996.999 ### ### ### ### ### ### ### ### ###30 995.440 ### ### ### ### ### ### ### ### ###35 993.727 ### ### ### ### ### ### ### ### ###40 991.861 999.190 ### ### ### ### ### ### ### ###45 989.846 997.162 ### ### ### ### ### ### ### ###50 987.683 994.989 ### ### ### ### ### ### ### ###55 985.375 992.673 999.996 ### ### ### ### ### ### ###60 982.924 990.217 997.533 ### ### ### ### ### ### ###65 980.332 987.624 994.936 ### ### ### ### ### ### ###70 977.602 984.894 992.207 999.539 ### ### ### ### ### ###75 974.735 982.032 989.347 996.681 ### ### ### ### ### ###80 971.734 979.039 986.361 993.699 ### ### ### ### ### ###85 968.601 975.917 983.249 990.596 997.959 ### ### ### ### ###90 965.339 972.669 980.014 987.373 994.747 ### ### ### ### ###95 961.949 969.297 976.659 984.034 991.422 998.824 ### ### ### ###

100 958.434 965.804 973.186 980.580 987.987 995.406 ### ### ### ###105 954.796 962.191 969.597 977.014 984.443 991.882 999.333 ### ### ###110 951.037 958.461 965.895 973.339 980.793 988.257 995.730 ### ### ###115 947.159 954.616 962.082 969.557 977.040 984.531 992.032 999.540 ### ###120 943.165 950.659 958.161 965.670 973.186 980.709 988.239 995.777 ### ###125 939.057 946.592 954.133 961.680 969.233 976.791 984.356 991.926 999.501 ###130 934.837 942.418 950.002 957.591 965.184 972.781 980.383 987.989 995.599 ###135 930.508 938.137 945.770 953.404 961.042 968.682 976.324 983.969 991.616 999.266140 926.071 933.754 941.438 949.123 956.808 964.494 972.181 979.868 987.556 995.244145 921.529 929.270 937.010 944.749 952.486 960.221 967.956 975.689 983.420 991.150150 916.884 924.687 932.488 940.284 948.077 955.866 963.652 971.433 979.212 986.986155 912.138 920.009 927.873 935.732 943.584 951.431 959.271 967.105 974.932 982.754160 907.293 915.236 923.170 931.095 939.010 946.917 954.815 962.704 970.585 978.456165 902.353 910.372 918.379 926.374 934.357 942.329 950.288 958.235 966.171 974.094170 897.318 905.418 913.503 921.573 929.628 937.667 945.691 953.700 961.693 969.671175 892.191 900.378 908.546 916.694 924.824 932.935 941.027 949.100 957.154 965.189180 886.975 895.253 903.508 911.740 919.949 928.135 936.298 944.438 952.556 960.650

Salinity [ppt]T [°C] 0 10 20 30 40 50 60 70 80 90

10 1.290 1.303 1.317 1.334 1.353 1.375 1.398 1.423 1.450 1.48015 1.133 1.144 1.158 1.173 1.191 1.210 1.230 1.253 1.277 1.30320 1.003 1.014 1.026 1.041 1.056 1.073 1.092 1.112 1.134 1.15625 0.894 0.905 0.917 0.930 0.944 0.960 0.977 0.995 1.014 1.03430 0.804 0.813 0.824 0.837 0.850 0.864 0.879 0.896 0.913 0.93135 0.727 0.736 0.746 0.757 0.770 0.783 0.797 0.812 0.828 0.84440 0.661 0.670 0.679 0.690 0.701 0.713 0.726 0.740 0.754 0.76945 0.604 0.613 0.622 0.632 0.642 0.653 0.665 0.678 0.691 0.70550 0.555 0.563 0.572 0.581 0.591 0.602 0.613 0.624 0.637 0.649

Variation in kinematic viscosity [10-6 m²/s] as a function of temperature [°C] and salinity [ppt]

55 0.513 0.520 0.528 0.537 0.547 0.556 0.567 0.577 0.589 0.60160 0.475 0.483 0.490 0.499 0.507 0.517 0.526 0.536 0.547 0.55865 0.442 0.449 0.457 0.465 0.473 0.482 0.491 0.500 0.510 0.52070 0.413 0.420 0.427 0.435 0.443 0.451 0.459 0.468 0.477 0.48775 0.388 0.394 0.401 0.408 0.415 0.423 0.431 0.440 0.448 0.45780 0.365 0.371 0.377 0.384 0.391 0.399 0.406 0.414 0.422 0.43085 0.344 0.350 0.356 0.363 0.369 0.376 0.384 0.391 0.399 0.40790 0.325 0.331 0.337 0.343 0.350 0.357 0.363 0.370 0.378 0.38595 0.309 0.314 0.320 0.326 0.332 0.339 0.345 0.352 0.359 0.366

100 0.293 0.299 0.304 0.310 0.316 0.322 0.328 0.335 0.341 0.348105 0.280 0.285 0.290 0.296 0.302 0.307 0.313 0.319 0.326 0.332110 0.267 0.272 0.278 0.283 0.288 0.294 0.300 0.305 0.311 0.317115 0.256 0.261 0.266 0.271 0.276 0.282 0.287 0.293 0.298 0.304120 0.245 0.250 0.255 0.260 0.265 0.270 0.275 0.281 0.286 0.292125 0.236 0.240 0.245 0.250 0.255 0.260 0.265 0.270 0.275 0.280130 0.227 0.232 0.236 0.241 0.245 0.250 0.255 0.260 0.265 0.270135 0.219 0.223 0.228 0.232 0.237 0.241 0.246 0.251 0.256 0.260140 0.212 0.216 0.220 0.224 0.229 0.233 0.238 0.242 0.247 0.252145 0.205 0.209 0.213 0.217 0.221 0.226 0.230 0.234 0.239 0.243150 0.198 0.202 0.206 0.210 0.214 0.219 0.223 0.227 0.231 0.236155 0.192 0.196 0.200 0.204 0.208 0.212 0.216 0.220 0.224 0.229160 0.187 0.191 0.194 0.198 0.202 0.206 0.210 0.214 0.218 0.222165 0.182 0.185 0.189 0.193 0.196 0.200 0.204 0.208 0.212 0.216170 0.177 0.180 0.184 0.188 0.191 0.195 0.199 0.202 0.206 0.210175 0.173 0.176 0.179 0.183 0.186 0.190 0.194 0.197 0.201 0.205180 0.168 0.172 0.175 0.178 0.182 0.185 0.189 0.192 0.196 0.199

Variation in density [kg/m³] as a function of temperature [°C] and salinity [ppt]

Salinity [ppt]100 110 120 130 140 150 160

### ### ### ### ### ### ###### ### ### ### ### ### ###### ### ### ### ### ### ###### ### ### ### ### ### ###### ### ### ### ### ### ###### ### ### ### ### ### ###### ### ### ### ### ### ###### ### ### ### ### ### ###### ### ### ### ### ### ###### ### ### ### ### ### ###### ### ### ### ### ### ###### ### ### ### ### ### ###### ### ### ### ### ### ###### ### ### ### ### ### ###### ### ### ### ### ### ###### ### ### ### ### ### ###### ### ### ### ### ### ###### ### ### ### ### ### ###### ### ### ### ### ### ###### ### ### ### ### ### ###### ### ### ### ### ### ###### ### ### ### ### ### ###### ### ### ### ### ### ###### ### ### ### ### ### ###### ### ### ### ### ### ###### ### ### ### ### ### ###### ### ### ### ### ### ###

998.879 ### ### ### ### ### ###994.757 ### ### ### ### ### ###990.569 998.378 ### ### ### ### ###986.318 994.171 ### ### ### ### ###982.006 989.905 997.793 ### ### ### ###977.634 985.582 993.514 ### ### ### ###973.205 981.203 989.181 997.141 ### ### ###968.722 976.770 984.796 992.799 ### ### ###

Salinity [ppt]100 110 120 1301.511 1.544 1.578 1.6151.330 1.359 1.389 1.4211.180 1.206 1.233 1.2601.056 1.078 1.102 1.1270.951 0.971 0.992 1.0140.862 0.880 0.899 0.9190.785 0.802 0.819 0.8370.720 0.735 0.750 0.7660.663 0.676 0.691 0.705

m²/s] as a function of temperature [°C] and salinity [ppt]

0.613 0.625 0.639 0.6520.569 0.581 0.593 0.6050.531 0.541 0.553 0.5640.497 0.507 0.517 0.5280.466 0.476 0.485 0.4950.439 0.448 0.457 0.4660.415 0.423 0.431 0.4400.393 0.400 0.408 0.4170.373 0.380 0.388 0.3950.355 0.362 0.369 0.3760.338 0.345 0.352 0.3590.324 0.330 0.336 0.3430.310 0.316 0.322 0.3280.297 0.303 0.309 0.3150.286 0.291 0.297 0.3020.275 0.280 0.286 0.2910.265 0.270 0.275 0.2810.256 0.261 0.266 0.2710.248 0.253 0.257 0.2620.240 0.245 0.249 0.2540.233 0.237 0.241 0.2460.226 0.230 0.234 0.2390.220 0.224 0.228 0.2320.214 0.218 0.222 0.2250.208 0.212 0.216 0.2190.203 0.207 0.210 0.214

0 20 40 60 80 100 120 140 160 180875.000

900.000

925.000

950.000

975.000

1000.000

1025.000

1050.000

1075.000

1100.000

1125.000

1150.000Density as a function of Salinity and Temperature

Sal = 150 ppt

Sal = 130 ppt

Sal = 110 ppt

Sal = 90 ppt

Sal = 70 ppt

Sal = 50 ppt

Sal = 30 ppt

Temperature T [°C]

Densit

y r

[kg

/m³] 150

ppt

0 ppt

0 20 40 60 80 100 120 140 160 1800.000

0.200

0.400

0.600

0.800

1.000

1.200

1.400

1.600

1.800Kinematic Viscosity as a function of Salinity and Temperature

Sal = 120 pptSal = 90 pptSal = 60 pptSal = 30 ppt

Temperature T [°C]

Kin

em

ati

c V

isco

sit

y n

[1

0-6

m²/

s]

SEAWATER DENSITY CALCULATORSalinity = 0 - 42 ppt

Salinity:Sal = 10.00 ppt

Temperature: T = 10.00 °C

Density: 1007.501 kg/m³

source:

Calculations are based on the "One Atmosphere Int. Equation of State of SW" (UNESCO, 1980)

Please enter the values of salinity and temperature of the effluent or ambient water (

0 Sal 42 ppt

0 T 40 °C

=

Please enter the values of salinity and temperature of the effluent or ambient water (p=1atm):

Dynamic Viscosity of Seawater (Sündermann, 1986)

temperature: T = 20.00 °Csalinity: S = 0.00 ppt

998.011 kg/m³

1.002E-03 kg/(m*s)A = 1.144E-03B = 3.251E-03Cl = 0.000E+00

### kg/(m*s)

### m²/s

w (20°C) = 1.002*10-3 kg/(m*s)

Valid for salinities between 0 and 40 ppt and temperatures between 5 and 25°C.

=

w =

dynamic viscosity:

sw =

kinematic viscosity:

sw = (with sw = sw / )