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Cooling Tower

Cooling Tower

Heat Rejection Unit for Industrial Cooling Water Systems

Cooling towers serve as efficient heat exchange systems that lower water temperature through the principle of evaporative cooling. They function by transferring waste heat from circulating cooling water into the atmosphere, effectively dissipating thermal load from industrial processes.

The tower housing is constructed from polyester fiberglass, delivering a combination of light weight, high strength, corrosion resistance, and long-term durability. The fan cylinder incorporates an energy recovery design to optimize airflow distribution and enhance operational efficiency. Additionally, the fan blades are made of airfoil-shaped epoxy fiberglass, ensuring high air delivery, improved energy efficiency, reduced noise levels, and reliable corrosion resistance.

Together, these features enable consistent and economical heat rejection, supporting stable operation across a wide range of industrial applications.

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Applications

Cooling towers are widely used across various sectors for efficient heat rejection and water conservation. Their primary applications include:

  • HVAC&R Systems Large-scale air conditioning, refrigeration plants, cold storage facilities, freezing systems, and combined heating and cooling installations.
  • Manufacturing & Process Industries Plastics, rubber, chemical and petrochemical production, metal casting, steel manufacturing, food and pharmaceutical processing, and textile operations.
  • Mechanical Equipment Cooling Generators, steam turbines, air compressors, hydraulic systems, and industrial engines.
  • Other Industrial & Commercial Uses Additional cooling applications in sectors such as leather tanning, foam manufacturing, aluminum profile production, and specialized industrial water cooling.
Cooling Tower
Technical Specifications
Model (HTCT-***) Ton 8 10 15 20 25 30 40 50 60 80 100 125 150
General Flow rate m³/h 6.23 7.8 11.7 15.6 19.5 23.4 31.2 39.2 46.8 62.4 78.1 97.5 117
Air flow cmm 70 85 140 160 200 230 280 330 420 450 700 830 950
Fan motor kW 0.18 0.18 0.18 0.37 0.55 0.55 0.75 1.5 1.5 1.5 2.2 2.2 2.2
Drive Direct drive
Noise level (16m) dBA 45.5 62.5 62.5 63 63 63 63 63.5 63.5 64 64.5 655 95
Net weight kg 42 50 54 67 98 116 130 200 250 280 450 540 580
Running weight kg 180 190 290 300 500 530 55d 979 1250 1280 1650 1740 1780
Piping Water inlet mm 40 40 50. 50 80 80 80 80 100 100 125 125 150
Water outlet mm 40 40 50 50 80 80 80 80 100 100 125 125 150
Overflow mm 25 25 25 25 25 25 25 25 25 25 25 25 25
Drain mm 25 25 25 25 25 25 25 25 25 25 25 29 25
Height Flow valve mm 15 15 15 15 15 15 15 15 20 20 20 20 20
Tower body mm 1650 1650 1750 1770 1870 1870 1980 2020 2150 2260 2400 2400 2550
Cell mm 940 1070 859 1140 1385 1130 1255 1255 1290 1455 1595 1780 1720
Air inlet mm 170 170 170 170 245 245 245 245 325 325 325 325 325
Water basin mm 420 420 450 450 450 340 340 420 460 460 450 450 450
Water inlet mm 270 270 280 175 175 175 175 230 295 295 300 300 300
Water outlet mm
mm 		180 180 190 190 115 115 115 125 200 200 230 230 230
Foundation mm 250 250 250 250 300 300 300 300 300 300 300 300 300
Diameter Fan mm 550 600 600 600 770 770 770 930 1170 1170 1450 1450 1450
Water basin mm 920 1060 1060 1170 1400 1650 1650 1830 2100 2100 2700 2700 3000
Foundation mm 554 554 797 797 1016 1016 1170 1170 1600 1600 2495 2495 2495
Screw mm 9×3 9×3 9×3 9×3 9×3 9×4 9×4 9×4 11×4 11×4 11×6 11×6 11×6
Material Fan Fiberglass reinforced polyester (FRP)/aluminum alloy
Fan guard —— Galvanized steel
Motor TEFC-type motor 380V/50HZ 3Ph
Motor support Galvanized steel
Casing Fiberglass reinforced polyester (FRP)
Water basin
Sprinkler system Polycarbonate & PVC pipe Aluminum alloy/PVC pipe
Eliminator Fiberglass reinforced polyester (FRP)
Tension bar Galvanized steel
Air inlet support Polycarbonate & PVC pipe Aluminum alloy/PVC pipe
Tower support
Ladder Galvanized steel
Piping PVC pipe
Infill support Polycarbonate Polycarbonate & galvanized steel
Infill PVC film
Note:

Design conditions: Inlet water temperature (T₁) = 37°C, outlet water temperature (T₂) = 32°C, wet bulb temperature (WBT) = 27°C, water temperature drop (ΔTₛ) = 5°C, atmospheric pressure (P) = 99,400 Pa.

Model (HTCT-***) Ton 175 200 225 250 300 150 400 500 600 700 800 1000
General Flow rate m³/h 136.8 156.2 175.5 195.1 234 273.2 312.1 392.4 468 547.2 626.4 781.2
Air flow cmm 1150 1250 1500 1750 2000 2200 2400 2600 3750 3750 5000 5400
Fan motor kW 4 4 5.5 5.5 7.5 7.5 11 11 15 18.5 22 22
Drive Direct drive Y-belt Gearbox
Noise level (16m) dba 66 66 665 67 67.5 68 68 68.5 68.5 69 70 70.5
Net weight kg 760 780 1050 1080 1760 1800 2840 2900 3950 4050 4700 4900
Running weight kg 1860 1880 2770 2800 3790 3930 5740 5800 9350 9450 11900 12100
Piping Water inlet mm 150 150 200 200 200 200 200 250 250 250 300 300
Water outlet mm 150 150 200 200 200 200 200 250 250 250 300 300
Overflow mm 25 25 80 80 80 80 80 80 100 100 100 100
Drain mm 25 25 B0 B0 80 80 80 80 100 100 100 100
Height Flow valve mm 20 20 25 25 25 25 40 40 50 50 50 50
Tower body mm 2750 2750 3620 3620 3680 3680 4070 4070 4560 4560 4720 4720
Cell mm 1965 1965 2060 2060 2160
620
900 		2160 2180 2180 2430 2630 2630 2630
Air inlet mm 350 350 620 620 620 620 620 760 1020 1020 1020 1020
Water basin mm 850 850 900 900 900 900 900 900 1020 1020 1020 1020
Water inlet mm 245 245 280 280 280 280 280 280 340 340 340 340
Water outlet mm
mm 		245 245 280 280 280 280 280 280 340 340 340 340
Foundation mm 300 300 300 300 300 300 400 400 400 400 400 400
Diameter Fan mm 1750 1750 2135 2135 2440 2440 2745 2745 3400 3400 3700 3700
Water basin mm 3300 3300 4100 4100 4640 4640 5500 5500 6600 6600 7600 7600
Foundation mm 3400 3400 4300 4300 4920 4920 5760 5760 6760 6760 7500 7500
Screw mm 16×8 16×8 16×12 16×12 16×12 16×12 16×24 16×24 25×32 25×32 25×32 25×32
Material Fan Fiberglass reinforced polyester (FRP)/aluminum alloy
Fan guard Galvanized steel
Motor TEFC-type motor 380V/50HZ 3Ph
Motor support Galvanized steel
Casing Fiberglass reinforced polyester (FRP)
Water basin
Sprinkler system Aluminum alloy/PVC pipe
Eliminator Fiberglass reinforced polyester (FRP)
Tension bar Galvanized steel
Air inlet support PVC mesh/ PVC mesh
Tower support Galvanized steel
Ladder
Piping PVC pipe
Infill support Galvanized steel
Infill PVC film
Note:

Design conditions: Inlet water temperature (T₁) = 37°C, outlet water temperature (T₂) = 32°C, wet bulb temperature (WBT) = 27°C, water temperature drop (ΔTₛ) = 5°C, atmospheric pressure (P) = 99,400 Pa.

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Other Industrial Cooling Equipment

In cold climates, cooling towers operate under load to maintain safe water temperatures. The circulating water is routed directly to the cold-water basin to prevent freezing when the thermal load is low. Water flow over the top of the tower remains steady, ensuring stable operation even in sub-zero conditions.

Cooling towers use the evaporative cooling process, which can significantly reduce both water and energy consumption. By cooling water through partial evaporation, they lessen the demand on mechanical refrigeration, lowering overall energy use. Many modern cooling towers feature advanced technologies and water treatment systems that allow for water recycling, further reducing reliance on fresh water. In addition, by reducing the load on chillers, air-conditioning units, and other cooling equipment, cooling towers contribute to greater energy efficiency across the entire system.