Something would not add up right here. The one means that an evaporative cooling tower works is when the wet-bulb temperature of the air coming into it is lower than the temperature of the water coming into it. Evaporation is inevitable, and the extra of it there is, the more practical the cooling can be. The quantity of it’s a function of the heat load on the tower.
There’s nothing in the original post about wet-bulb temperatures, which renders calculation nicely-nigh not possible.
Printed psychrometric charts are readily used to predict the performance of cooling towers.
There’s nothing in the unique post about the quality of the water to be introduced for evaporation aside from <…87.5 C seawater…>, not even the total dissolved solids level of the water, which varies from place to place on the globe. The blowdown level of the tower is just not talked about both, nor the quality of the make-up water. So, expect plenty of deposits to build-up on the wetted surfaces inside the tower, which will require frequent cleansing. One hopes that the pipework, pumps and heat alternate surfaces in the utility system can withstand assault from the concentrated salt answer it should all be anticipated to hold.
Cooling towers are renowned for being breeding grounds for all types of undesirable biology. <…87.5 C…> is, happily, high enough to kill off most of these items. Nonetheless, there is no point out of the remedy regime to be offered to the water to verify of the absence of biology at partial load.
Is there one thing incorrect with simply rejecting the <…87.5 C seawater…> into some settlement lagoon, and recovering the solid salt it produces for sale as a by-product?
Energy conservation principles would seem to counsel that such a excessive delta-temperature throughout the tower would not be probably the most economical strategy to operate the power. Using the <…87.5 C seawater…> to partially pre-heat one other medium for use elsewhere in the facility earlier than providing the water for heat rejection cooling by evaporation would seem to be a preferable method to go.
The easy advice here at this second is to stop working on such an abstruse idea of cooling tower and begin consulting a qualified Course of Engineer to contemplate better methods of utilizing the heat and the salt in the first instance, on the idea of the worth of them to the facility. Once all these avenues have been explored, then is the time to start talking to cooling tower specialist corporations to offer a viable cooling tower service utilizing much less demanding fluids than <…87.5 C seawater…> should the need remain.