Plant Efficiency Significant Energy Savings with Screw Air Compressors
Solö Mechanical selected Elgi’s EG37 VFD screw air compressor to enhance its plant efficiency in Eskilstuna, Sweden. By incorporating the new compressor, the company was able to save 4,364 kWh of energy in a month and 1,910 dollars in just five months.
Elgi Compressors Europe has recently announced that one of its customers, Solö Mechanical, will realize up to 23,439 dollars in energy savings over the next five years with an Elgi EG Series screw air compressor.
Solö Mechanical, a Swedish provider of sheet metal and cutting, processing, welding and assembly services, was looking for a partner to resolve the efficiency, noise and pressure issues they faced with their erstwhile air compressor. The Elgi team in Sweden conducted an energy audit of the compressed air system using the Elgi Air Audit which identified inefficiencies and provided recommendations for an upgrade along with expected savings and cost estimates.
Based on the audit’s recommendations, Solö Mechanical decided to replace their aging compressor with an Elgi EG37 VFD (Variable Frequency Drive) compressor. The Elgi Air Audit analysis (also confirmed by an independent third-party consultancy) estimates that Solö Mechanical will save approximately 410 dollars a month or up to 23,439 dollars in five years in energy spends, from upgrading to the EG Series. After having commissioned the unit in January 2021, a recent energy audit conducted confirms the energy savings. After only 5 months, the company’s Series has already saved Solö Mechanical 1,910 dollars and 4,364 kWh of energy in a month. This resulted in 47 % saving on the firm’s energy bill, opines the firm.
The robust design of the compressor range enables operations at extreme temperatures – from cold to hot and from dry to extremely humid conditions, leading overall to a higher reliability of the compressed air system, states the company. The firm’s high efficiency airends are equipped with in-house developed η-V profile rotors, with 4/5 lobe combination, designed to run at low rotor speeds. This unique design reduces pressure losses and together with the OSBIC (Oil Separation by Impact and Centrifugal action), 3-stage separation provides best-in-class energy efficiency, mentions the company.
Thanks to low operating speeds further improved by the operational Variable Frequency Drive (VFD), the compressor can adapt to the changes in demand, and optimize the air flow saving energy costs. These EG compressors run very quietly, which also contributes to improved employees’ comfort at the Solö Mechanical plant, adds the firm.