2017年8月21日星期一

Thread: Maximizing Evaporation Loss In A Cooling Tower

One thing does not add up right here. The one manner that an evaporative cooling tower works is when the wet-bulb temperature of the air coming into it is decrease than the temperature of the water coming into it. Evaporation is inevitable, and the more of it there may be, the more effective the cooling can be. The amount of it is a function of the heat load on the tower.
There’s nothing in the original post about wet-bulb temperatures, which renders calculation effectively-nigh inconceivable.
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Revealed psychrometric charts are readily used to predict the efficiency of cooling towers.
There’s nothing in the original post about the quality of the water to be presented for evaporation aside from <…87.5 C seawater…>, not even the whole dissolved solids degree of the water, which varies from place to position on the globe. The blowdown point of the tower will not be mentioned either, nor the quality of the make-up water. So, anticipate loads of deposits to construct-up on the wetted surfaces inside the tower, which would require frequent cleansing. One hopes that the pipework, pumps and heat alternate surfaces in the utility system can withstand attack from the concentrated salt answer it will all be anticipated to carry.
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Cooling towers are famend for being breeding grounds for all types of unwanted biology. <…87.5 C…> is, happily, high sufficient to kill off most of these items. Nonetheless, there is no mention of the therapy regime to be provided to the water to make sure of the absence of biology at partial load.
Is there something mistaken with simply rejecting the <…87.5 C seawater…> into some settlement lagoon, and recovering the strong salt it produces on the market as a by-product?
Energy conservation ideas would appear to suggest that such a excessive delta-temperature throughout the tower would not be the most economical technique to operate the ability. Using the <…87.5 C seawater…> to partially pre-heat one other medium for use elsewhere in the ability earlier than offering the water for heat rejection cooling by evaporation would appear to be a preferable approach to go.
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The simple recommendation here at this second is to cease working on such an abstruse idea of cooling tower and begin consulting a certified Process Engineer to consider better methods of utilizing the heat and the salt in the primary occasion, on the basis of the value of them to the facility. As soon as all these avenues have been explored, then is the time to begin talking to cooling tower specialist companies to provide a viable cooling tower service using less demanding fluids than <…87.5 C seawater…> should the need remain.
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