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NCT 79

What is a “Bottle-Shaped FRP Cooling Tower”?

It is a compact, induced-draft, factory-fabricated cooling tower made of Fiber Reinforced Plastic, featuring a cylindrical or slightly tapered “bottle-like” outer casing, usually housing all components in a single, integrated unit.
It is NOT a giant hyperbolic natural draft tower made of FRP (FRP is not structurally suitable for that scale).

Design & Configuration

  1. Shape & Structure:
    1. A vertical cylindrical FRP shell (like a bottle) with a narrower top (where the fan is) and a wider bottom (housing fill and basin).
    1. Often a single, self-contained package. The entire tower (basin, fill, drift eliminators, fan stack) is one FRP mold.
  2. Airflow Type:
    1. Almost exclusively Induced Draft (fan at the top, pulling air up).
    1. Airflow pattern is typically Counter flow: air moves up, water trickles down.
  3. Size Range:
    1. Small to medium capacity. Common for commercial HVAC and light industrial use (e.g., 50 to 1,000 cooling tons).
    1. Much smaller than natural draft hyperbolic towers.

Key Features & Advantages

  1. Compact Footprint:
    1. Cylindrical design is space-efficient compared to rectangular FRP towers.
  2. Excellent Corrosion Resistance:
    1. Full FRP construction resists chemicals, algae, and harsh environments.
  3. Low Noise & Aesthetics:
    1. Smooth, enclosed shape reduces wind noise. Often considered more visually acceptable.
  1. Reduced Drift & Splash-Out:
    1. Enclosed design minimizes windage drift and contains water spray better than open towers.
  2. Ease of Installation & Relocation:
    1. Lightweight, pre-assembled unit. Often delivered as a “plug-and-cool” system.

Typical Applications

  • Rooftop HVAC systems for hotels, hospitals, offices.
  • Plastic injection molding machines.
  • Process cooling in food & beverage, pharmaceutical, and chemical plants.
  • Data center cooling.
  • Anywhere space is limited and corrosion resistance is needed.