BAC S15E 1018-10 LE offener Kühlturm

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 high efficiency and ease of maintenance are priorities.

Technology
Patented BACross III fill system enables easy inspection of the fill, preventing biological growth (e.g., Legionella).

Key Features of the S1500E Series
- Maintenance Access: A large, inward-swinging access door and internal maintenance platforms allow technicians to carry out inspections conveniently while standing inside the unit.
- Hygiene Control: The design minimizes standing water and protects from sunlight through dedicated air inlet elements, reducing algae growth.
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- Flexibility: The single-side air intake allows the cooling tower to be installed in confined spaces or directly against walls.
- Materials: Galvanised steel with Baltibond hybrid coating.

Typical Applications
- Industrial Cooling: Used in factories for process cooling.
- HVAC: Deployed in large building complexes as part of central cooling systems.
- Refrigeration: Serves as a condenser in commercial refrigeration circuits.

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

This model is rated for maximum flow rates of up to 198 litres per second.

Under typical industrial and HVAC standard conditions, the nominal cooling capacity of this model ranges approximately from 1,200 kW to 2,100 kW.

Why Does Cooling Capacity Vary?
- Wet Bulb Temperature (Ambient Air): The cooler and drier the surrounding air, the more water can evaporate, thus increasing cooling capacity.
- Water Temperatures: Performance changes significantly depending on the hot water inlet temperature (e.g., 35°C) and the cold water outlet temperature (e.g., 29°C).
- Air Volume Flow: According to BAC technical data, the S15E 1018-10 LE actively moves 60.0 m³/s of air through three installed 11.0 kW fan motors.
- If the airflow is reduced by a frequency converter (e.g., during night mode or in winter), the cooling capacity decreases in a controlled manner.
- Approach: This is the most important thermodynamic factor – the difference between the desired cold water temperature and the wet bulb temperature set by physics. The closer the cold water approaches the wet bulb, the less kW the tower can achieve.

Technical Data:

Fan & Air Data
- Air volume flow: 60.0 m³/s (induced draft)
- Fan motors: 3 x 11.0 kW (axial fans)
- Technology: Integrated belt drive
- Water flow: 198 l/s

Hydraulic Connections
- Water Inlet (Fluid Inlet): 1 x DN 250 (nominal diameter ND 250 mm)
- Water Outlet (Fluid Outlet): 1 x DN 300 (ND 300 mm)
- Make-up Water Connection: 1 x DN 40 (ND 40 mm)
- Overflow / Drain: DN 80 (ND 80 mm) / DN 50 (ND 50 mm)

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