BAC S15E 1018-10 LE atviras aušinimo bokštas

BAC S1500E

BAC S1500E Cooling Tower

The BAC S15E 1018-10-LE is a high-performance open cooling tower from Baltimore Aircoil Company’s (BAC) S1500E series. This specific model is designed for industrial cooling applications and large-scale HVAC systems where maximum efficiency and ease of maintenance are paramount.

Technology

Patented BACross III fill pack system enables easy inspection of louvers to prevent biological growth (e.g., Legionella).

Key Features of the S1500E Series

Maintenance Access: A large, inward-swinging access door and integrated internal service platforms allow technicians to conduct inspections comfortably while standing inside the unit.
Hygiene Control: The design minimizes standing water and uses special air inlet elements to shield from sunlight, reducing algae growth.
Flexibility: Thanks to the single-sided air intake, the cooling tower can be installed in tight spaces or directly adjacent to walls.
Materials: Galvanized steel with Baltibond hybrid coating.
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Typical Applications

Industrial Cooling: Used in factories for process cooling.
Air Conditioning (HVAC): Deployed in large building complexes as part of central chilling plants.
Refrigeration: Functions as a condenser in commercial refrigeration circuits.

Cooling Capacity

An open evaporative cooling tower does not have a fixed, single kW rating, as actual performance fully depends on thermodynamic ambient conditions and system temperatures.

This model is designed for maximum water flow rates of up to 198 liters per second.

Under typical industrial or HVAC standard conditions, the nominal cooling capacity of this model ranges between approx. 1,200 kW and 2,100 kW.

Why Does the Cooling Capacity Vary?

Wet-bulb temperature (outside air): The cooler and drier the ambient air, the more water can evaporate and the higher the cooling capacity.
Water temperatures: Performance varies greatly depending on incoming hot water temperature (e.g., 35°C) and outgoing cold water temperature (e.g., 29°C).
Airflow volume: According to BAC technical specifications, the S15E 1018-10 LE moves 60.0 m³/s of air using three integrated 11.0 kW fan motors.
If the airflow is reduced by a frequency converter (e.g., at night or during winter operation), cooling performance decreases accordingly.
Approach: This is the key thermodynamic limitation, describing the difference between the desired cold water temperature and the physical wet bulb temperature. The closer the cold water approaches the wet bulb (smaller approach), the less kW performance the tower can achieve.

Technical Data
Fan & Air Data
Airflow volume: 60.0 m³/s (draw-through operation)
Fan motors: 3x 11.0 kW (axial fans)
Drive technology: Integrated belt drive
Water flow: 198 l/s

Hydraulic Connections
Water inlet (fluid inlet): 1x DN 250 (nominal diameter ND 250 mm)
Water outlet (fluid outlet): 1x DN 300 (ND 300 mm)
Make-up water connection: 1x DN 40 (ND 40 mm)
Overflow / drain: DN 80 (ND 80 mm) / DN 50 (ND 50 mm)

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