Archive for the ‘Energy Efficiency’ Category

Efficiency comparison pumping system

Thursday, January 25th, 2018 von admin

An increasing number of pumps are now being run using speed control in order to be able to define the dynamic volume flow. The pump’s quadratic characteristic causes the motor load to decrease rapidly at lower speeds, which results in the level of efficiency decreasing significantly. Using the diagrams, it can be seen that the ideal workload for the existing asynchronous motor is not reached, due to operation at partial loads (approx. 30%) and speeds (75%).

If the pump is then equipped with a PMSM motor that has an extended efficiency range including partial load operation, the level of efficiency can be increased by approx. 12% in this example and savings of more than EUR 250 per pump per year can be achieved (depending on the number of hours‘ operation per year).

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Green pumps for a green stadium

Tuesday, January 16th, 2018 von admin

Croke Park is a major Gaelic Athletic Association (GAA) sports venue located in Dublin that hosts events for a number of sports. Croke Park has been at the heart of Irish sporting life for over a hundred years, it is not only an iconic landmark but also the third largest stadium in Europe.

Since 1884 the site has been used primarily by the GAA to host Gaelic games, most notably the annual All-Ireland finals in Gaelic Football and Hurling. In honour of Archbishop Thomas Croke, one of the first GAA’s first patrons, the stadium was renamed to Croke Park.

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Sulzer doubles capacity of high voltage testing to improve repair times

Thursday, January 11th, 2018 von admin

Performance testing of high voltage motors and generators is usually carried out to determine benchmark data following a major repair. However, increasingly, customers are requiring this information as part of a problem diagnosis or to verify performance figures for a component when its essential data has been lost. To keep up with growing demand, Sulzer has made a major investment at its Falkirk Service Center (Scotland) that will enable the test-bed load capacity to be doubled.

Until now, the Falkirk site has used a 1,250 kVA diesel generator that operates through two step-up transformers to provide 3.3 – 11 kV via high voltage switchgear to the test cell. This setup ensures a reliable power source for testing that is not affected by local demand on the power grid. The new investment will add a 2,000 kVA and a 700 kVA generator to the site that will be synchronized through a 4000A LV switchboard, as well as a new 2,500 kVA transformer, that will double the capacity of the test bed.

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KSB: High-efficiency motor with integrated frequency inverter

Wednesday, December 20th, 2017 von admin

Prototype demonstrates potentia: The KSB Group has finished the prototype of a super-compact high-efficiency motor with an integrated frequency inverter. The 22-kW synchronous reluctance motor is a prototype featuring new semiconductor technology that provides completely new cooling management for eliminating heat from power electronics.

By integrating the frequency inverter into the motor, developers were able to reduce the unit volume by over 25 percent compared with the traditional design.

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New inline single stage centrifugal pump range

Monday, December 18th, 2017 von admin

The new SIL pump range was developed by Sulzer to meet the process requirements in various general and industrial applications. The SIL pump range is developed for pumping mainly clean and slightly contaminated liquids, viscous liquids up to 250 cSt, and fibrous slurries up to a consistency of 1%. The hydraulic design ensures efficient pumping with a low NPSHr (net positive suction head required) across the whole pump range.

The inline design together with the monoblock construction makes the SIL pump compact, rigid and reliable. The pump is available either with an integrated motor or with a standard IEC motor. SIL pumps are easy and fast to install both in vertical and in horizontal positions, and they require only a small installation space.

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Extensive additions to Siemens pump converter

Monday, November 27th, 2017 von admin
The Sinamics G120 is the universal drive to address the widest range of application requirements such as pump drives. Siemens is extending its portfolio of Sinamics G120 converters to include a new frame size, the FSG with voltage ranges from 380 to 480 volts (V) and from 500 to 690 V.
This addition means that the innovative PM240-2 Power Modules now cover the entire power range up to 250 kilowatts (kW). The extremely compact design and standard integrated optional features such as integrated DC link reactor or integrated filter to achieve category C2, enable substantial space and cost savings in the control cabinet.

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Energy-efficient pump systems for water supply

Friday, November 17th, 2017 von admin

With the use of the permanent magnet technology, oddesse pumps and motors factory developed an energy-efficient pumping system to support water supply companies to sustainably reduce energy consumption and thus contribute to the protection of the environment.

In the past, the efficiency of pump systems was often calculated by solely considering the efficiency of the pump. The efficiency of the motor, on the other hand, which is determined by the ratio between the electrical input and the mechanical output, has been largely ignored. However, the overall efficiency of the complete pumping system has an impact on the energy costs, which, as the decisive factor, account for more than 80% in the efficiency analysis. By optimizing the overall system, the greatest savings in electricity costs can be achieved.

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What will the pump of the future look like?

Wednesday, November 15th, 2017 von admin

Few components in plant and equipment engineering are as steeped in tradition as the pump. But how does this fit in with the age of digitalisation? And is it even possible to design a hydraulic element that is fit for Industry 4.0? KSB has been reconciling these two worlds successfully for some time now.

KSB has always focused primarily on the optimisation of pumps – knowing the exact load profile and tuning the pump to the operating point. This is borne out by the sheer number of different pump casings and materials used and the impeller adjustment options available. However, conditions can change during the life of a pump and it often happens that a pump no longer runs at the optimum operating point. This also applies to newly installed pumps. For years now, KSB experts have therefore been investigating how to optimise pumps more easily without using complex analytics or even having to replace the pump.

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Vertical gearmotors in pump stations

Wednesday, November 15th, 2017 von admin

To prevent the city of New Orleans something like the Hurricane Katrina in 2005, the U.S. Army Corps of Engineers awarded approximately $615 million for the New Orleans Permanent Canal Closures and Pumps (PCCP) project to keep the city’s three main drainage outfall canals from being overwhelmed in future storms. In these pump stations 17 ABB vertical gearmotors (VGM) will power massive pumps supplied by Patterson Pump Co. The project also includes 17 ABB ACS 1000i and 5000i MV drives to control the pump start-up.

The VGM integrates proven Dodge planetary gear technology with ABB standard low-pole-count motors and is designed for low-speed vertical pumping applications with high-power requirements.  According to Mike Myers, Global Business Manager for Dodge specialty and large gearing, the product offered key advantages for the PCCP project.

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Open University Study Programme for Pump Engineers

Wednesday, November 15th, 2017 von admin

Next English programme starts in March 2018

The programme is an academic distance-learning study course with only two classroom courses to be attended (two weeks each). The free time management allows the participants to define their own pace of progress within the programme which corresponds to a time equivalent of approximately 400 hours. The course “Certified Energy Consultants for Pumps and Pump Systems” is integrated into the programme. Advantages:

  • Flexible time-management
  • Practice-oriented training by renowned pump experts
  • Developed by university professors and leading engineers
  • Open to all engineers and professionals working with pumps

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