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Views: 0 Author: Site Editor Publish Time: 2022-09-20 Origin: Site
The perfect choice for users who have a variable compressed air demand.
The compressors use a high performance inverter to smoothly alter the motor speed in response to demand for air, ensuring there is no offload running. You only pay for the compressed air you use.In many cases this can reduce energy costs by 35% or more, with paybacks from around 6-18 months.
The inverter further saves energy by accurately maintaining the system pressure within a 0.1 bar margin, and by soft starting which reduces start up current peaks and wear on the motor and drive system.
The Enair variable speed compressors mirror the demand for air by altering the motor speed ensuring you only pay for the air you use.
When to Use a Variable Speed Air Compressor
• Companies with multiple shifts that have different CFM needs (e.g., shifts 2 and 3 operate at lower demand than shift 1).
• Companies with high seasonal variability.
• Applications where demand fluctuates significantly over the course of a shift or between jobs (for example, a machine shop with manual tools whose usage varies depending on the jobs they take in).
When to Use a Fixed Speed Air Compressor
Fixed speed air compressors have lower initial costs, so they can be a good choice for companies with limited access to capital funds. Parts and maintenance are also generally less expensive for a fixed speed compressor. However, it is important to remember that energy savings for a VSD, combined with incentives from your power company, may largely erase the cost difference between a fixed speed and variable speed drive air compressor over time.
A fixed speed compressor may also be more efficient in scenarios where variations in CFM are minimal and the system will always be operating near its maximum CFM rating. Fixed speed air compressors are best for:
Companies with very low variation in compressed air demand, such as robotic applications running on a 24/7/365 basis.
Companies with inconsistent power supply. VSD compressors are highly sensitive to incoming power inconsistencies.
Facilities with extremely dirty, dusty or wet ambient conditions. The electronics in a VSD compressor are more sensitive to moisture and dirt than the components of a fixed speed compressor. That being said, filtration can be added to the electronic cabinets to eliminate this concern, allowing these users to take advantage of the energy savings.
Only purchase high efficiency air-compressors
Efficiency can affect the price significantly. Running an 80% efficient compressor increased the overall running costs by 25%.
The overall efficiency depends on the design of the compressor. The quality of the components and lubricant used also affect it. Our top-quality VSD Enair air compressors operate at 90% efficiencies.
Absolutely, a higher-quality compressor with better efficiency will come at a cost. It is up to the user to determine if the increased initial cost is worth the savings in the long term. If the user does not use the air compressor on a regular basis, then it may take years to recuperate the ROI from choosing a more efficient compressor over a less efficient one.
Overall efficiency is massively important for rotary air compressors, which may operate non-stop for days. A piston-based air compressor usually runs intermittently, so the general efficiency is not as important.
If you’re not sure whether you should choose a fixed speed or variable speed drive air compressor—or a combination of both—an experienced compressed air system engineer can help you decide. Our system designers can analyze your compressed air consumption patterns and system requirements and determine which option will be most cost effective for your needs.