THE MAGAZINE FOR THE DRAINAGE, WATER & WASTEWATER INDUSTRIES
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motormatches the IE5 requirements for the motor part itself.
Commenting on the growing focus and adoption of E-Motors,Markus Brandstetter, Chief Technology Officer, Grundfos says “Digital transformation is inevitable across the various segments andwe at Grundfos are proud to pioneer in creating the products and digital solutions of the future. Our focus on developing IE5 E-motors is strategic not only for our business, butwe see that it is a critical solution to alleviate theworld’s energy and climate issues. E-motors are known to not only improve the efficiency of the entire systembut also help in reducing energy consumption and helping usmitigate climate change. This is whatwe push further to the benefit of our customers and end-users in reducing cost and CO2 emissions.”
High efficiency E-pumpswith IE5motors contribute substantially to energy savings and reduced CO2 footprint. Grundfos estimates that the yearly avoided CO2 emission can be significant. In 2020 alone the avoided CO2 emissions fromGrundfos E-pumpswas 270,000 tons.
Further, the in-built application control inMGE E-Motors reduces not only the energy consumption of the pump itself but also optimizes the performance and efficiency of the entire system.
Grundfos iswitnessing a strongmarket trend wheremore pumps are being fittedwith VFDs and control units. Themarket for VFDs, including those appliedwith pumps, is witnessing a projected annual growth of around 6%in the coming years due to growing urbanization, industrialization and rising governmentmandates for energy efficiency3. Another growth driver is the need formanufacturers to optimize their manufacturing processes and cut operational costs, and even small reductions in speed and flowlead to significant energy cost savings.
Why choose an E-Motor?
E-motors offer increased functionality,making themeasy to use in awide-range of complex applications. These E-motors provide a range of benefits over standardmotors such as:
■ TheMGE E-motor provides superior energy efficiency even beyond IE5
standard
■ IE5motor losses is at least 30%lower than the IE3, this alone reduces the
energy consumption by 10%with a typical pump load profile
■ The pump,motor and frequency converter are perfectlymatched for
FOLLOW US
optimized pump efficiency
■ Choosing the right controlmode inMGE for the application can provide even
more energy savings for the entire systemof up to 75%compared to uncontrolled pumps.
Energy and cost savingswith optimised efficiency
The GrundfosMGE E-motors are themost energy efficient yet. These permanentmagnet synchronousmotors (PMSM) are designed especially for frequency converter operations and optimised for pump applications and high part-load efficiency. Themotor PMSMalso has a built-in frequency converter that enables variable-speed operationwith benefits in pump applications ranging fromenergy savings, process control, extra functionalities, built-inmotor protection, higher performance andmore compact pumps, reducedwater hammer due to long ramp times and low starting currents.
This results in lower energy and lifecycle costs. Adjusting the speed of the pump based on demand, rather than throttling the system flowwith a valve, also results in no excess pressure causing stress in the systemand noise in the valve due to cavitation and reduced power consumption due to lower pump speed.
Grundfos’MGE E-Motors are currently utilized in awide range of its pumps, including the multi stage pump ranges CRE, CME,MTRE the single stage pump ranges TPE, NBE, NKE and Booster systems that servemultiple applications.
Looking beyond justmotors to the entire system
Grundfos iSOLUTIONS brings a newera of intelligence to pump systems andwater technologywith solutions that look beyond individual components and optimise the entire system. Powered by the company’s
deep understanding ofwater, Grundfos iSOLUTIONS utilises intelligent pumps, cloud connectivity and digital services. Together they enable real-timemonitoring, remote control, fault prediction and system optimisation to help you reach a newlevel of performance.
Grundfos iSOLUTIONS delivers the optimal combination of pumps, drives and auxiliary components for the specific application, incorporating special features and functions and building on application knowledge and experience. iSOLUTIONS allows easy integration of pumps, drives,measurement, controls, protections, and communication, saving you valuable engineering, installation and commissioning time.
Recent installations&their impact
Grundfos hasmany success stories from around theworld on howE-Motors and iSOLUTIONS are helping its customers solve theirwatermanagement issues aswell as helping themconversewater and energy, thereby reducing their costs and carbon emissions.
Buildings unlock up to 80%energy
savingswith simple pump swaps: Taka Solutions (an energy consulting company) workedwith Grundfos to determine the problems around the existing HVAC (heating, ventilation and air conditioning) pumping systems in three buildings belonging to H&H PropertyManagement and Development in Dubai - Indigo Towers (residential), Green Tower (commercial) and Falcon Tower (residential). These buildingwere experiencing unusually high electricity costs. A Grundfos Energy Check determined that the buildings were equippedwith oversized pumps, inefficient operation and poor balancing in their constant, primary chiller systems and these pumps ran at constant speed. Thus, Grundfos recommended changing to close- coupled, end-suction pumpswith variable
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