The Superior Vibration Reduction of Copra: A Technical Comparison
In today's high-demand data centers, air handling units and commercial environments, minimizing vibration is critical. High vibration can lead to equipment wear and tear, noise pollution and even operational failure. Our recent testing has shown the Nicotra Gebhardt COPRA™ Electronically Commutated Fan outperforms competitors' vibration levels, thanks to its innovative Cube structure. This article will delve into the technical aspects of our findings and the numerous benefits that reducing vibration brings to applications.
Why is Vibration Reduction essential?
Vibration reduction is crucial for several reasons:
Equipment Longevity
Continuous vibrations can cause mechanical wear, leading to premature equipment failure.
Noise Control
Vibrations often translate into noise, which can disrupt environments like data centers and office spaces.
Competitor Vibration Comparison: COPRA's Superior Performance
We performed comprehensive vibration tests, comparing COPRA to top competitors under identical conditions.
Utilizing advanced accelerometers, we assessed vibration levels in the laboratory in different installation conditions and across various applications such as Rooftop units, AHUs, and data centers. Results showed that COPRA consistently outperforms competitors, exhibiting significantly lower vibration levels.
The superior performance systems from COPRA's proprietary Plug structure, which enhances stability, absorbs vibration, and ensures all resonances are outside of operational speed ranges (see results of rigid structure test that simulate the vibrations of fan without interferences of other systems after the installation).
Its V-shaped motor supports and cubic design further reduce amplitude, even in installations.
Experimental measures verified in laboratory also in elastic/semi-rigid installations and data acquisition from the applications into the field finally revealed that Copra exhibits significantly lower vibration levels compared to its competitors (see results of chamber test that emulate the combination of vibrations of fan together of application system after installation):
| Size | Fan Maximum Speed [rpm] |
Chamber test (horizontal axis mounting) |
Rigid structure test (vertical axis mounting) |
|
|---|---|---|---|---|
COPRA |
400 | 2980 | Vibrations < 1.5mm/s (On resonance < 3.5mm/s) |
Max Vibrations < 0.7mm/s |
| 450 | 2460 | Vibrations < 1.5mm/s (Also on resonance speed) |
Max Vibrations < 4.5mm/s (Negligible resonance) |
|
| 500 | 2020 | Vibrations < 2.5mm/s (Also on resonance speed) |
Max Vibrations < 4.5mm/s (No resonance) |
|
| 560 | 1670 | Vibrations < 2.5mm/s (Also on resonance speed) |
Max Vibrations < 4.5mm/s (No resonance) |
Competitor A |
450 Plastic | 2620 | On several resonances |
On resonance 12mm/s |
| 500 Plastic | 2150 | On several resonances |
On resonance 18mm/s |
|
| 500 Alluminium | 2120 | Max Vibrations < 4.5mm/s (On several resonances) |
On several resonances vibrations peaks are>4.5mm/s |
|
| 560 Plastic | 1860 | Max Vibrations < 4.5mm/s (On several resonances) |
On several resonances vibrations peaks are>4.5mm/s |
Competitor B |
400 Plastic | 2940 | On resonance 5mm/s (Other vibrations peaks>4.5mm/s) |
On resonance 10mm/s |
| 450 Alluminium | 2480 | On resonance 25mm/s |
On resonance 70mm/s |
|
| 450 Plastic | 2480 | On resonance 13mm/s |
On resonance 50mm/s |
|
| 500 Alluminium | 2000 | Max Vibrations < 4.5mm/s (On several resonances) |
On resonance 9mm/s |
The table above highlights how both in Rigid structures and Typical horizontal mounting wall COPRA outperforms competitors, which actually meet the acceptable vibrations only in a few instances
The key factor behind this performance is Copra's Plug proprietary structure, which enhances stability and absorbs vibration effectively.
The cubic structure of COPRA has been designed to allow compact and robust installation in all conditions with the purpose of having all resonances out of speed operative range for each impeller size.
V-shape and symmetry of motor supports absorb vibrations and limit their amplitude also in few cases of not typical coupling of fan wall:
The one referred in the image is a COPRA 560mm 4,5kW at 1050rpm in typical application as vibrations around 0.9 mm/s (5 times less than standards allow). In typical installation resonances other plug fans show extremely high vibrations.
COPRA Technical Highlights
- Structural Design
The cubic structure is engineered to distribute mechanical loads evenly, reducing the transmission of vibrations. - Precision Manufacturing
The precise construction and balancing ensure that all components fit together seamlessly, reducing potential vibration points. - Optimized Design
mpeller shape and motor design generate minimal vibration.
Benefits of COPRA in Different Environments
- Operational Efficiency: Stable, vibration-free operation ensures that datacenter maintenance can be planned periodically reducing the risk of early failure rate.
- Extended Equipment Life: Servers and other data center equipment are less likely to suffer from vibration-induced wear, leading to longer lifespans and reduced maintenance costs.
- Reduced Noise: Low vibration levels mean quieter operation, which is crucial in any application where noise pollution can affect performance and comfort.
- Maintenance Savings: Components in AHUs are subject to less wear and tear, reducing the frequency and cost of maintenance.
- Safety: Reduced vibrations can enhance the safety of commercial environments by minimizing the risk of mechanical failures.
- Precision: In manufacturing and other precision-critical applications, stable equipment operation is vital for maintaining product quality.
For more detailed information about our testing methodology or to discuss how COPRA can benefit from your specific application, please contact our technical support team!