Page 119 - Analysis and Design of Energy Geostructures

Heat and mass transfers in the context of energy geostructures 91

Table 3.6 Some thermophysical properties of water.
Water
Reference Density, ρ f Specific heat, c p;f Thermal Dynamic
3
temperature, [kg/m ] [J/(kg C)] conductivity, viscosity, μ [Pa s]

f
T [ C] λ f [W/(m C)]

1 1000 4226 0.569 1.655 3 10 23
5 1000 4216 0.576 1.484 3 10 23
10 1000 4206 0.584 1.302 3 10 23
15 999 4198 0.592 1.150 3 10 23
20 998 4191 0.599 1.021 3 10 23
30 996 4182 0.613 0.820 3 10 23
23
40 992 4178 0.626 0.671 3 10

Table 3.7 Some thermophysical properties of MEG 25.
MEG 25
Reference Density, ρ f Specific heat, c p;f Thermal Dynamic
3
temperature, [kg/m ] [J/(kg C)] conductivity, viscosity, μ [Pa s]

f
T [ C] λ f [W/(m C)]

-10 1048 3713 0.477 3.186 3 10 23
23
-5 1046 3719 0.481 2.704 3 10
0 1045 3726 0.485 2.314 3 10 23
23
5 1044 3734 0.489 1.995 3 10
10 1042 3742 0.493 1.733 3 10 23
23
15 1040 3751 0.496 1.516 3 10
20 1038 3760 0.499 1.334 3 10 23
30 1034 3780 0.504 1.053 3 10 23
40 1030 3801 0.509 0.849 3 10 23

Table 3.8 Some thermophysical properties of MEG 50.
MEG 50
Reference Density, Specific heat, Thermal conductivity, Dynamic viscosity,
3
temperature, T [ C] ρ [kg/m ] c p;f [J/(kg C)] λ f [W/(m C)] μ [Pa s]

f
f
-10 1094 3201 0.413 5.316 3 10 23
-5 1092 3221 0.412 4.428 3 10 23
0 1090 3240 0.411 3.723 3 10 23
5 1087 3260 0.410 3.157 3 10 23
10 1084 3280 0.408 2.700 3 10 23
15 1082 3301 0.407 2.326 3 10 23
20 1079 3321 0.406 2.019 3 10 23
30 1073 3361 0.403 1.552 3 10 23
23
40 1067 3402 0.400 1.223 3 10