Energy-saving technology for cooling tower turbines
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Dear sea friends, we are currently exploring energy-saving technologies for cooling towers. Based on what we have learned so far, there are three approaches: 1) improving the efficiency of water pumps, 2) using frequency converters with water pumps, and 3) replacing cooling fans with turbines driven by water flow. All these methods take advantage of the potential energy of the return water. We are now preparing to implement turbine modifications, and from our discussions, it appears that there are various technologies available for turbines as well. Therefore, I would like to ask fellow sailors: which types of technology are more advanced when it comes to turbines themselves, and what are the main technical parameters of turbines?
We used variable frequency control for the circulation water pump, without using a turbine
Why not consider the form of the filler?
Why not consider the form of the filler?
Using a water turbine is purely misleading~~~~ After all, where does the residual energy of the circulating water come from? If the system does not have the pressure drop caused by a turbine, is it still necessary to choose a circulation pump with a head of around 55 meters? Or if a head of 55m is selected, what should the actual outlet pressure be? ~~~~Turbines also have their own efficiency issues~~~ Those who understand what I’m trying to say will naturally know how turbines work~~~~ In fact, energy-saving measures for cooling towers haven’t received enough attention from equipment and component suppliers within China, as well as from design firms~~~ From a design perspective, considerations are generally limited to things like orientation and louvers, etc.; the design of fillers, fan cross-sections, tower cross-sections, water distributors, and so on is far from being optimized to the highest possible standard~~~~ So, in my opinion, when it comes to energy-saving solutions, it’s sufficient to do one’s best, haha.
Of course. Think about how the cooling fan helps to reduce temperature; if there is good filler dispersion in the water, could that improve the efficiency of temperature reduction?
To improve the cooling efficiency, fans still require electricity; if no energy savings are achieved through water pumps or other sources, then this approach is less energy-efficient than using turbines, since turbines don’t need any electricity at all, right?
Turbine renovation makes use of the residual pressure potential energy of the returning water. If this residual pressure potential energy is inevitably present (for example, when there is a large height difference in the water usage system, of 35 meters or more), or if it is necessary to have such residual pressure potential energy (due to pressure requirements in the manufacturing process), then turbine renovation can yield certain energy-saving benefits； Otherwise, a conversion using a turbine is less energy-efficient than one using a water pump. Using high-efficiency impellers for energy-saving upgrades is simpler to implement, less costly, and yields better energy-saving results compared to turbine upgrades. In fact, most turbine renovations do not fall into the two categories mentioned above; therefore, they represent poor energy-saving solutions. Many of these renovations result in insufficient rotational speed and inadequate cooling. However, due to the extensive modifications made to the fan foundations and equipment, it becomes impossible to restore things to their original state, leading to awkward situations and regret.
As you know, what are the technologies related to hydroturbines, and what are the latest advancements in this field?
Replacing the cooling fan with a turbine-driven system is an inefficient method for saving energy; it should only be used as a last resort for circulating cooling water energy savings when no other alternatives are available. If the original poster is interested, they can get in touch with me; I have technologies that are quite efficient and offer high energy savings.