Filler-free spray cooling towers and turbine cooling towers
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The company is planning to install a circulating water system with a capacity of 7,000 t/h, and is considering using energy-saving cooling towers of the spray type or turbine type. I would like to ask those who have experience with such systems: how is their cooling efficiency and operational stability? Personally, I think turbine-type filled cooling towers are more reliable than spray-type unfilled ones. Thank you all
Has your company’s project been completed? I specialize in energy-saving upgrades for cooling towers! :)
The turbine tower is great! Energy-efficient and high in thermal efficiency.
This post was last edited by rrstar on 2015-9-15 at 10:50. The heat load rate for both is relatively low; under the same cooling conditions, the cooling tower required is much larger than that of traditional cooling towers. It is not recommended to use this approach in systems where a large temperature difference is needed, as the primary goal of a cooling tower is to ensure efficient cooling, with energy savings being a secondary consideration! Furthermore, the turbine approach actually requires increasing the pressure of the circulating water returning to the tower; to ensure sufficient air flow, a considerable increase in the circulating water pressure is needed, so its energy-saving efficiency remains to be proven.
Thank you very much. The situation is indeed as you said – the cooling efficiency of spray-type cooling towers is rather average, especially in summer. Although hydroturbines are driven without electricity, they still consume the head pressure from the circulation water pump; high requirements are placed on the backwater pressure, making it difficult to assess their energy-saving efficiency. The temperature difference we designed is 8 degrees, which is not very large; the management has full confidence in spray-type cooling towers.
The maximum design temperature difference for cooling towers at normal temperatures is generally 10 degrees; a difference of less than 5 degrees indicates a low to moderate load, while a difference of 8 degrees is considered significant.
Water-driven fan cooling towers and spray towers are not recommended for use in new projects, as the energy savings cannot be determined; caution is advised.
Turbines make use of the excess energy in the system; if there is not enough such excess energy, it is not possible to ensure the proper operation of the fans. When there is sufficient excess energy, its cooling effect is similar to that of traditional cooling towers, with very significant energy-saving benefits. Maintenance is also straightforward. The key to this issue lies in the calculation of the excess energy in the system. Furthermore, if the spray tower is in use for a long time, poor atomization by the nozzles will affect the cooling effect; moreover, a tower of excessive size is not recommended.
For new projects, it is recommended to give it consideration; the packing-free tower indeed has its practical advantages, as there is no risk of packing clogging. The performance is good; the key lies in proper maintenance. It is essential to ensure the misting effect of the nozzles, and there must be a pressure difference in the cooling tower of the turbine
Based on my experience, generally speaking, if a spray tower was originally designed, the pressure difference provided by the system is usually sufficient to drive the operation of the water turbine. I have some experience in modifying water turbines used in cooling towers; feel free to reach out if you’re interested. Additionally, when using a spray tower, the quality of the circulating water must be good – otherwise, if the nozzles get clogged, the cooling effect will be reduced
Are there any experiences with using spray towers? Which company’s product