What compressor types can be used?

What compressor types can be used?

What compressor types can be used?
Water-cooled falling film and flooded chillers from Aurashu can be configured with several compressor technologies, each chosen to match project capacity, energy-efficiency targets, refrigerant requirements, and system control strategies. The three most common compressor types used in these chillers are centrifugal, screw, and magnetic bearing centrifugal compressors—each offering unique performance advantages.

Centrifugal compressors are widely used in medium-to-large capacity systems because of their high efficiency, smooth operation, and excellent performance at full and part load. They rely on high-speed impellers to compress refrigerant, which makes them ideal for chilled-water plants serving commercial complexes, industrial facilities, and data centers. When combined with falling-film evaporators, centrifugal compressors can achieve notably low approach temperatures and reduced refrigerant charge.

Screw compressors provide robust performance and high reliability under varying load conditions. Their positive-displacement design delivers stable compression without the need for extremely high rotational speeds. Screw compressors are often selected for applications requiring strong adaptability to fluctuating loads, harsh operating environments, or continuous 24/7 operation. When paired with flooded evaporators, they offer excellent oil-management and stable evaporating temperatures.

Magnetic-bearing centrifugal compressors represent the highest tier of efficiency and technological sophistication. Since they use frictionless bearings, they dramatically reduce mechanical losses and enable ultra-precise variable-speed modulation. This makes them ideal for premium energy-efficient installations, such as green buildings, pharmaceutical facilities, semiconductor manufacturing, and mission-critical cooling systems. Aurashu integrates magnetic-bearing technology with falling film heat exchangers to achieve exceptional IPLV performance and ultra-low vibration.

Aurashu selects and engineers each compressor configuration based on project-specific parameters, including: cooling capacity, operating hours, ambient conditions, target efficiency levels, footprint constraints, noise limits, refrigerant strategy, and life-cycle cost. This ensures that every chiller—whether centrifugal, screw, or magnetic-bearing centrifugal—delivers high stability, long service life, and optimized energy performance throughout the system’s operating range.