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Energy Efficiency

                  Pumps & Fans Control (Industry/Infrastructure)

                  Pains & drivers

                  • In Industry, 70% of electrical consumption is used to turn motors. Of these motors, 33% of them control pump or fan applications
                  • Most pump and fan applications are driven by a DOL solution of SoftStarter. This means that the motor runs at full speed and the flow variation is obtained. The energy consumption falls very little when the flow decreases. At 80% of the nominal flow, the energy consumption remains at 95%. The potential for saving on the installed base is huge
                  • The CEMEP association has made a simulation for the European market. The use of Drive in such applications could save 900 M Euro/year as well as 4 Million tons of CO2/year
                   

                  How can a customer manage energy more efficiently?

                  • To save energy you must:
                    - drive the motor with a frequency inverter instead of a contactor or Soft Start
                    - remove the restriction device (valve or damper)
                  • The AC Inverter allows you to adjust the speed of the Pump or the Fan, and therefore the Flow
                  • The result is huge savings compared to conventional solutions:
                    - up to 50% for Fan , return on investment for the drive is within one year
                    - up to 30 % for a Pump , return on investment within 2 years
                   

                  Solutions or architectures used in the application

                   
                  Solutions or architectures used in the application
                  A) Solution without Drive
                  The motor turns at a fixed speed according to the network frequency and the number of poles.
                  Example : 3600 Rpm for 60 Hz
                  Motor 2 poles
                  The only way to adjust the Flow is a restriction device (damper) which generates losses.







                  B) Energy Saving Solution with Drive
                  The Drive, which is also called a frequency inverter, lets you vary the frequency and therefore the motor speed, too.
                  The Flow is directly proportional to the speed.
                  The damper or valve are no longer required.







                  C) Energy Consumption with and without Drive
                  Example for Fan Application

                  Outlet damper 
                  Variable speed drive 
                  50% of energy saving at 80% of the nominal flow


                  Example for Pump Application

                  Control valve 
                  Drive 
                  30% of energy saving at 80% of the nominal flow 

                   
                   
                   
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                  Altivar 61

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                  W@de W320i, Magelis XBT-N, TeSys U, Altistart 48, Multi 9

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                  W@de 320e, Magelis XBT-G, Vijeo Citect, Altivar 61

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                  Altivar 61, Magelis, Vijeo

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                  W@de RTU, Magelis XBT-N, Altivar 61, Multi 9

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                  Modicon M340, Advantys STB, FactoryCast, ConneXium, Altivar 61

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                  PowerLogic, Compact NS, Altivar 61

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                  Modicon Premium, Advantys STB, Magelis XBT, Vijeo, Altivar 61, TeSys U

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                  Modicon Quantum, PowerLogic PM650, Altivar 61, Altistart 48, TeSys LT6

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                  Altivar 61, Tesys U

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