1, whether the motor-driven fan or the pump-driven fan (so-called pump residual pressure), the fan is finally electrically driven. Motor drive is more efficient and reliable than water pump drive. The price of energy saving is to increase the heat exchange area, in other words, to make the cooling tower bigger and save energy.
2. Hydraulic turbine drive puts forward higher requirements for pipeline design and pump matching design. A slightly larger design deviation may lead to unsatisfactory operation, or multi-machine joint operation, and the water pressure will fluctuate under different working conditions, which is difficult to master. So designers are often reluctant to recommend it.
3. Relatively speaking, the traditional cooling tower technology is relatively mature and widely used. The after-sales problem of operation and maintenance is well solved.
From the above aspects, if you want to produce or use this kind of cooling tower, you'd better think it over before making a decision.