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BNC Counter Flow Closed Circuit Cooling Tower ( Centrifugal fans）
Technical Specifications (Typical Reference Range)
| Parameter | Range / Description |
| Heat Rejection Capacity | Project-customizable based on cooling demand |
| Fan Type | Induced-draft centrifugal fans (handle ~0.5″ ESP) |
| Coil Configuration | Closed-loop coil—no fill media |
| Coil Material | Stainless steel or other corrosion-resistant alloys |
| Drift Loss | Minimal—thanks to robust eliminators |
| Footprint | Compact, low-profile design suitable for tight spaces |
| Suitable Installation | Indoor, ducted, and space-constrained environments |
For precise specifications, contact our engineering team for tailored configurations.
Product Overview
The BNC Counter-Flow Closed-Circuit Cooling Tower with Centrifugal Fans from HACST Cooling is a cutting-edge, compact evaporative cooling solution tailored for demanding industrial, HVAC, and process applications. Utilizing a counter-flow layout and closed-loop design, it ensures efficient heat rejection while safeguarding critical fluids from contamination. The inclusion of centrifugal fans enables robust air movement—even in ducted or high static pressure environments—making it both versatile and reliable.
Key Features & Advantages
- Closed-Loop Architecture – Keeps process fluid fully isolated from the environment, preventing contamination and maintaining system cleanliness.
- Counter-Flow Configuration – Enhances heat transfer by directing spray water downward over coils while air moves upward in the opposite direction.
- Centrifugal Fans – Capable of overcoming external static pressures up to ~0.5″ (125 Pa), ideal for both indoor and ducted setups; inherently quieter than axial fans.
- No-Fill Design – Eliminates traditional fill media, reducing fouling risks and maintenance while enabling a larger coil surface area for higher cooling capacity.
- Energy & Water Efficiency – Optimized coil and spray design reduce both water consumption and energy use.
- Durable Construction – Built with corrosion-resistant materials such as galvanized steel or stainless steel for long-term reliability.
Working Principle
Process fluid circulates within the internal heat exchanger coil. Spray water is evenly distributed over this coil, while centrifugal fans induce upward airflow. Heat from the fluid transfers through the coil to the spray water, and evaporative cooling carries the heat away with the discharged air. Drift eliminators capture water droplets, minimizing losses and enhancing efficiency.
Applications
Ideal for:
- Clean-process environments such as chemical or pharmaceutical plants.
- Indoor or ducted installations requiring compact, high-efficiency cooling.
- HVAC systems in commercial or industrial buildings with space constraints.
- Data centers or precision cooling scenarios.
Cross-Model Comparison
| Feature | BNC (Centrifugal Fans, No-Fill) | Standard Counter-Flow Closed Tower |
| Heat Transfer Efficiency | High due to direct coil contact | Moderate—relies on coil + fill media |
| Space Efficiency | Compact, low-profile | Larger footprint |
| Maintenance Needs | Low—no fill media to clean | Higher—fill must be maintained |
| Ductwork Capability | Excellent—handles high static pressure | Limited—axial fans struggle with ESP |
| Noise Performance | Quiet centrifugal fan operation | Varies—can be noisier with axial fans |
| Best Use Case | Indoor or noise-sensitive sites | Outdoor or easy-access installations |
Maintenance & Operational Tips
- Fan Maintenance – Regular check of belts, bearings, and motor alignment ensures long-term performance.
- Water Quality Control – Monitor spray system and eliminators; maintaining water chemistry reduces scaling.
- Water Quality Control – Monitor spray system and eliminators; maintaining water chemistry reduces scaling.
- Water Quality Control – Monitor spray system and eliminators; maintaining water chemistry reduces scaling.
Why Choose HACST Cooling
- Over 15 years of domain expertise in designing and manufacturing cooling towers
- Globally proven installations across 30+ countries
- Rigorously certified quality standards: CTI, ISO9001, CE, and more
- Comprehensive support—from initial design to commissioning and after-sales service
Request a Tailored Quote
Share your technical requirements, installation constraints, or cooling targets with us—we’ll design your ideal BNC solution.
Email: hengancooling@gmail.com