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AQUAFAN Engineering Principles

Motorless Hydro-Powered Cooling Tower Technology

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AQUAFAN Engineering Principles

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  1. AQUAFAN EngineeringPrinciples MotorlessHydro-PoweredCoolingTowerTechnology

  2. AQUAFAN+Turbine Powered Cooling Tower with Backup Motor

  3. Principals • AQUAFAN+ is equipped with turbine that converts residual water pressure into fan rotation • Backup motor delivers extra power when the cooling demand requires extra performance.

  4. Key data • Cell modules of 3.6 meter with 2.4 meter fans • Rotation generated by turbine up to 250 RPM (depending on water pressure available) • Rotation required up to 475 RPM • Total fan shaft power required up to 7.5 kW

  5. MechanicsOption 1 • Motor controlled by VFD • VFD keeps motor free running up to 250 RPM with negligible power consumption • Above 250 RPM motor adds fan speed: VFD switch of and motor scales up to max RPM immediately

  6. MechanicsOption 2 • Motor controlled by VFD • VFD adjusts RPM until required water temperature is achieved • Turbine assists motor in generating fan speed

  7. Mechanics • Motor controlled by VFD • VFD keeps motor free running up to 250 RPM with negligible power consumption • Above 250 RPM motor adds fan speed: • VFD controlled and in relation cooling demand (option 1) • Above 250 RPM VFD switch of and motor scales up to 475 RPM immediately

  8. Bockwoldt Project • Scope of supply: • VFD + programming • RPM meter • Motor • WATCO supply: • Cooling tower • Turbine / PT 100 • Provide quotation and timing for the project.

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