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Cooling tower parameters definition

Define fluid parameters

Fluid properties are defined in cs_user_parameters.f90 in routine cs_user_cooling_towers:

cp_a = 1006.0d0
cp_v = 1831.0d0
cp_l = 4179.0d0
hv0 = 2501600.0d0
rho_l = 997.85615d0
viscl0 = 1.765d-5
lambda_l = 0.02493d0
humidity0 = 0.d0
droplet_diam = 0.005d0

Define an evaporation zone

The cs_user_paramters.c function allows one to define parameters for cooling towers.

The following code block shows an example of definition of a cooling tower exchange zone.

{
cs_real_t surface = 0.48 * 6540.; /* 48% of the total disc */
cs_real_t qw = surface * 2.64; /* Water flow rate (kg/s) */
"2 or 3", /* selction criterion */
CS_CTWR_POPPE, /*Evaporation model:
CS_CTWR_NONE None,
CS_CTWR_POPPE Poppe,
CS_CTWR_MERKEL Merkel*/
CS_CTWR_COUNTER_CURRENT counter current,
CS_CTWR_CROSS_CURRENT cross,
CS_CTWR_RAIN rain zone */
-1., /* Imposed delta temperature if positive */
0.1, /* Associated relaxation time */
36., /* Liquid injected water temperature */
qw,
0.2, /* Evaportaion law constant A */
0.5, /* Evaportaion law constant n */
surface);
}