pump minimum efficiency index

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  • Minimum Efficiency Index: testing its performance

    2020-12-23 · Minimum Efficiency Index REGULATION (EU) No 547/2012 MEI only applies to water pumps with full size impellers, water pumps supplied with trimmed impellers are not applicable to the standard. The benchmark for most efficient water pumps is MEI ≥ 0,70. The efficiency of a pump with a trimmed impeller is usually …

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  • Minimum Efficiency Index - Apex Pumps

    2015-12-31 · The Minimum Efficiency Index (MEI) is an efficiency indicator specially introduced and defined for pumps. Besides the efficiency at the best efficiency point (BEP), two additional efficiency values...

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  • The Concept of the Minimum Efficiency Index

    2017-4-1 · The minimum efficiency required for a pump to be marketable in Europe was defined by specifying a threshold value of a new parameter: the Minimum Efficiency Index (MEI).

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  • Minimum Efficiency Index: testing its performance ...

    MEI = minimum efficiency index The minimum efficiency index (MEI) is a measure of the quality of a pump size in respect to its mean efficiency. The minimum efficiency index is based on the hydraulic efficiency and on the head at the best efficiency point. The efficiency of a pump with trimmed impeller is usually lower than that of …

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  • (PDF) Minimum Efficiency Index: testing its

    2012-5-8 · Minimum required pump efficiency Values of minimum required pump efficiency are dependent on pump type (ESOB, ….. ) pump nominal speed n N pump size (Q BEP) pump specific speed n s (characterizing impeller shape) the Minimum Efficiency Index (MEI)

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  • OMG what is an MEI? - Pump Industry Magazine

    2013-3-8 · Minimum required pump efficiency units: η in % Q BEP in m3/h H BEP in m n N, n s in 1/min i: number of stages depends on pump type nominal speed n N Minimum Efficiency Index (MEI) Results of EUROPUMP study carried out at …

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  • Minimum Efficiency Index (MEI) Committee

    2015-9-26 · Minimum Efficiency Index (MEI) for pump wet-ends only, define the data required to develop and the procedure to calculate the MEI, and outline the requirements for evaluating the MEI. This standard will include definitions, development, testing verification and labeling of the pump. Pumps meeting the …

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  • DOE Pump Efficiency Rulemaking

    2021-2-20 · Minimum Efficiency Index (MEI) Standard: The purpose of the MEI is to develop a methodology for reducing the energy consumption of pumping systems. The MEI concept takes into account the factors of pump type, size (flow rate @ BEP), head, and specific speed to predict the efficiency cut-off level.

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  • Demystifying the MEI pump efficiency index

    2013-5-13 · The Minimum Efficiency Index (MEI) identifies a minimum efficiency cut-off for those pumps performing under the new hydraulic efficiency levels. The first cut-off point got reinforced on 1 January 2013, while the second one, more stringent yet, will come into force on the same date in 2015.

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  • SIHI Water Pumps Meet the Minimum Efficiency

    2013-1-16 · The measure for the quality of a pump size in respect to efficiency is the Minimum Efficiency Index (MEI). From the 1st of January 2013 all water pumps need to fulfil the value of MEI >= 0.1 and form the 1st of January 2015 the value of MEI >= 0.4. Any water pump not meeting these requirements cannot be used.

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  • 2020 Pump Efficiency, DOE Requirements |

    2019-5-9 · Pump Energy Index (PEI) To establish baseline pump efficiency requirements, over more than 20 manufacturers submitted data on the five pump types, which resulted in more than 3,000 unique pumps. The pump data submitted was flow, head, power and efficiency. The DOE used this information to determine …

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  • Assessing the Energy Efficiency of Pumps and Pump

    2015-9-14 · 7. The Concept of the Minimum Efficiency Index (MEI) for Pumps . 8. The Concept of the Energy Efficiency Index (EEI) for Circulators and Pump Units . References . Europump, the European Association of Pump Manufacturers, was established in 1960. It

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  • GRUNDFOS DATA BOOKLET - bore pumps

    2015-1-11 · MEI index Minimum Efficiency Index (MEI) is the dimensionless scale unit for hydraulic pump efficiency at best efficiency point, part load and overload. EU regulations set efficiency requirements to MEI ≥ 0.1 as from 1 January 2013 and MEI ≥ 0.4 as from 1 January 2015. An indicative benchmark for the

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  • How the concepts of “House of Efficiency” and

    2013-3-8 · Minimum required pump efficiency Values of minimum required pump efficiency were elaborated by a study at TU Darmstadt are based on statistical evaluations of data of nearly 2.400 „state of the art“ pumps of European manufacturers, collected by questionnaires and on general fluiddynamic laws and …

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  • SNS end-suction single-stage process pump

    The SNS process pump range not only meets the ErP 0.4 (Energy-related Products) criteria, but breaks all records by exceeding MEI 0.7 level (Minimum Efficiency Index) The highest efficiency on the process pump market providing clear savings in energy consumption ; Highest hydraulic power on the process pump range.

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  • Lowara Smart Pump Range - Xylem Inc.

    2020-6-10 · class efficiency, according to IEC/TS 60034-30-2 • Power drive system (drive and motor) in the highest efficiency class, IES2, according to IEC 61800-9-2 • Hydraulic pump designed for exceptional Minimum Efficiency Index (MEI) ratings, according to EU Regulation No. 547/2012 Enjoy plug-and-play ease The all-inclusive Lowara Smart Pump

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  • minimum efficiency index - Armstrong Fluid Technology

    2017-7-31 · minimum efficiency index Minimum efficiency index (mei) means the dimensionless scale unit for hydraulic pump efficiency at best efficiency point (bep), part load (pl) and overload (ol). The Commission Regulation (eu) sets efficiency requirements to mei ≥ 0.40 as from 1 January 2015. The benchmark for water pump efficiency …

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  • water pumps BSI Standards Publication efficiency of ...

    2019-12-18 · minimum required value of efficiency depending on the value of the Minimum Efficiency Index (MEI). Also, this standard prescribes how the value of the Minimum Efficiency Index (MEI) of a pump size indicated by the manufacturer can be verified by an independent institution (e.g. in the frame of market surveillance).

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  • Ecodesign Minimum Efficiency Requirements Water

    2019-12-4 · In order to enforce this there will be a Minimum Efficiency Index (M.E.I.) criteria set for the above list of pumps. The MEI is a dimensionless figure that is derived from a complex calculation based on the efficiencies at BEP (Best Efficiency Point), 75% BEP & 110% BEP, and the specific speed. The range is used so that …

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  • CR, CRN, CRNE high pressure

    • The efficiency of a pump with a trimmed impeller is usually lower than that of a pump with the full impeller diameter. The trimming of the impeller will adapt the pump to a fixed duty point, leading to reduced energy consumption. The minimum efficiency index (MEI) is based on the full impeller diameter. • The operation of this water pump …

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  • ESBE | ENERGY EFFICIENCY INDEX (EEI)

    2020-6-4 · ENERGY EFFICIENCY INDEX (EEI) EEI specifies how much the power of a pump is below one predefined reference power source. In building design, energy efficiency has come to the forefront. Products that can deliver the desired effect with lower electrical energy will save money and reduce emissions. In accordance with …

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  • Data Book 50Hz - EBARA Pumps Europe S.p.A.

    2021-3-12 · The minimum efficiency index (MEI) is a measure of the quality of a pump size in respect to its mean . efficiency. The minimum efficiency index is based on the hydraulic efficiency and on the head at the best efficiency point. The efficiency of a pump with trimmed impeller is usually lower than that of a pump with the full …

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  • CR, CRI, CRN - Grundfos

    Minimum efficiency index (MEI) means the dimensionless scale unit for hydraulic pump efficiency at best efficiency point (BEP), part load (PL) and overload (OL). The Commission Regulation (EU) sets efficiency requirements to MEI ≥ 0.10 as from 1 January 2013 and MEI ≥ 0.40 as from 1 January 2015. An indicative benchmark for …

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  • Incorporate Minimum Efficiency Requirements for

    2021-5-13 · The table below includes minimum efficiency requirements for the following ENERGY STAR-qualified covered product categories: air-source heat pumps (residential) and geothermal heat pumps (residential). These ASHRAE 90.1-2016 Table 6.8.1-1 and Table 6.8.1-2 equipment types are excluded: through-the …

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  • How the concepts of “House of Efficiency” and

    2013-3-8 · Minimum required pump efficiency Values of minimum required pump efficiency were elaborated by a study at TU Darmstadt are based on statistical evaluations of data of nearly 2.400 „state of the art“ pumps of European manufacturers, collected by questionnaires and on general fluiddynamic laws and …

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  • Efficiency requirements for residential central AC

    2019-7-30 · The National Appliance Energy Conservation Act of 1987 established the first minimum efficiency requirements for central air-conditioning and heat pump equipment sold in the United States. These standards went into effect in 1992, and later updates went into effect in 2006 and 2015.

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  • minimum efficiency index - Armstrong Fluid Technology

    2017-7-31 · minimum efficiency index Minimum efficiency index (mei) means the dimensionless scale unit for hydraulic pump efficiency at best efficiency point (bep), part load (pl) and overload (ol). The Commission Regulation (eu) sets efficiency requirements to mei ≥ 0.40 as from 1 January 2015. The benchmark for water pump efficiency …

    Get Price
  • CR, CRN, CRNE high pressure

    • The efficiency of a pump with a trimmed impeller is usually lower than that of a pump with the full impeller diameter. The trimming of the impeller will adapt the pump to a fixed duty point, leading to reduced energy consumption. The minimum efficiency index (MEI) is based on the full impeller diameter. • The operation of this water pump …

    Get Price
  • PEER-REVIEWED TECHNICAL PAPERS Section J

    2020-8-17 · conducted to determine the design pump head and flow. The calculations yield a pump design operation point of 200kPa and 35L/s flow. The selected pump is an end suction own-bearing two-pole pump and with the minimum efficiency index (MEI) by the manufacturer listed as 0.70 (see Figure 2). The …

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  • Rev. Q - EBARA Pumps Europe S.p.A.

    2016-12-21 · The minimum efficiency index (MEI) is based on the full impeller diameter. The operation of these water pumps with variable duty points may be more efficient end economic when controlled, for example, by the use of a variable speed drive that matches the pump duty to the system.

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  • Data Book 3D SERIES 50 M - EBARA Pumps Europe

    2021-3-18 · The minimum efficiency index (MEI) is a measure of the quality of a pump size in respect to its mean efficiency. The minimum efficiency index is based on the hydraulic efficiency and on the head at the best efficiency point. The efficiency of a pump with trimmed impeller is usually lower than that of a pump with the full …

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  • EUR-Lex - 32012R0547 - EN - EUR-Lex

    The minimum efficiency index (MEI) is based on the full impeller diameter.’; (9) Standard text: ‘The operation of this water pump with variable duty points may be more efficient and economic when controlled, for example, by the use of a variable speed drive that matches the pump duty to the system’;

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  • Pump System Calculator | Australian Building

    The simple method can be chosen if the minimum efficiency index is known. If not, additional information about the pump’s characteristics will be needed. In this example, the minimum efficiency index is not known, so the alternate method is selected. Based on this choice, enter the water flow rate, system head and the efficiency.

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  • SIL inline single-stage centrifugal pumps

    2021-5-4 · The SIL pump range has been designed using our long experience and in-depth knowledge of how to maximize value for our customers. Premium efficiency • The inline pump exceeds the EU’s (European Union) requirements for energy-related products (ErP) • The whole pump range exceeds MEI 0.4 (Minimum Efficiency Index…

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  • Efficiency requirements for residential central AC

    2019-7-30 · The National Appliance Energy Conservation Act of 1987 established the first minimum efficiency requirements for central air-conditioning and heat pump equipment sold in the United States. These standards went into effect in 1992, and later updates went into effect in 2006 and 2015.

    Get Price
  • SINGLE AND TWIN-IMPELLER CENTRIFUGAL

    2015-1-1 · This regulation states that water pumps shall have index MEI 0.4 as minimum from 1 January 2015. That index comes from a dedicated formula which considers hydraulic efficiency values at ‘best efficiency point’ (BEP), 75 % of the flow at BEP (Part load – PL) and 110 % of the flow at BEP (Over load – OL).

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  • BS EN 16480:2016 - Pumps. Minimum required

    This European Standard specifies performance requirements (methods and procedures for testing and calculating) for determining the Minimum Efficiency Index (MEI) of rotodynamic glanded water pumps for pumping clean water, including where integrated in other products. The pump types and sizes covered by this standard …

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  • General Methodologies of Determining the Energy

    2013-11-26 · nominal data (c.f. [5]). These pumps are classified in respect to energy efficiency by a so called Minimum-Efficiency-Index (MEI), a classification system of lower limits for the pump’s efficiency at three specified flow rates: one at 75 % part load, one at 110 % over load and one at best efficiency point (BEP).

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  • PEER-REVIEWED TECHNICAL PAPERS Section J

    2020-8-17 · conducted to determine the design pump head and flow. The calculations yield a pump design operation point of 200kPa and 35L/s flow. The selected pump is an end suction own-bearing two-pole pump and with the minimum efficiency index (MEI) by the manufacturer listed as 0.70 (see Figure 2). The …

    Get Price
  • Heat Pump Efficiency | Heat Pump SEER Ratings |

    Minimum HSPF efficiency: The Department of Energy has established 8.2 HSPF as the minimum efficiency for residential, air-source, split-system heat pumps. High heating efficiency heat pumps : While some of the highest-performing air-source heat pumps are rated at 13 HSPF, anything about 10 HSPF should be considered to be a high-efficiency …

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  • Pump System Calculator | Australian Building

    The simple method can be chosen if the minimum efficiency index is known. If not, additional information about the pump’s characteristics will be needed. In this example, the minimum efficiency index is not known, so the alternate method is selected. Based on this choice, enter the water flow rate, system head and the efficiency.

    Get Price
  • Incorporate Minimum Efficiency Requirements for

    2021-5-13 · The table below includes minimum efficiency requirements for the following ENERGY STAR-qualified covered product categories: air-source heat pumps (residential) and geothermal heat pumps (residential). These ASHRAE 90.1-2016 Table 6.8.1-1 and Table 6.8.1-2 equipment types are excluded: through-the …

    Get Price
  • Etanorm Type Series Booklet

    2014-7-18 · The efficiency of a pump with a trimmed impeller is usually lower than that of a pump with full impeller diameter. Trimming of the impeller will adapt the pump to a fixed duty point, leading to reduced energy consumption. The minimum efficiency index (MEI) is based on the full impeller diameter.

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  • Department of Energy Pump Standards - Modify

    2019-3-11 · Elimination of Inefficient Pumps. The original intent of this standard was to eliminate the bottom 25% of inefficient pumps. The DOE evaluates all pumps included, with what they refer to as PEI.The PEI-CL is a test where you take the pump and measure its average efficiency at several operating points along the impeller curve at a single speed and compare that with the minimum for that size pump.

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  • Successful project management (Part 2) - Pump

    The product approach – The House of Efficiency. Originating from a preparatory study for the Energy Using Products (EuP) Directive (2005/32/EC), the ‘House of Efficiency’ is a pass or fail scheme that takes into account design and application requirements as well as pump minimum efficiency, dependent on flow capacity …

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  • ESP centrifugal pump - PetroWiki

    2016-1-19 · It shows the range in which the pump can be reliably operated. The left edge of the area is the minimum operating point, and the right edge is the maximum operating point. The best efficiency point (BEP) is between these two points, and it is where the efficiency curve peaks.

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  • 3 SINGLE STAGE +120°C CENTRIFUGAL PUMPS

    2020-10-7 · * the recommended maximum pump speeds must be respected OPERATING RANGE Flow rate up to: 450 m3/h Mano. head up to: 150 mCE Operating pressure: 16 bar Frequency range: -20 to +120°C Hot water up to: +120°C reference MEI*: ≥ 0,10 *Minimum Efficiency Index SINGLE STAGE CENTRIFUGAL PUMPS EN …

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  • Testing methods produce wide variations in pump

    2017-2-16 · The Minimum Efficiency Index (MEI) specifies the parameters for a pump to be marketed in Europe. It is a numerical value that indicates how a pump’s efficiency at certain conditions compares with other pumps on the market. The standard for water pump efficiency is ≥0,40, meaning that 40 percent of the …

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  • Prepare for DOE Pump Efficiency Regulations

    2015-9-26 · To reduce the burden on pump manufacturers while addressing pump efficiency, HI recommended that the DOE adopt a Minimum Efficiency Index (MEI) that is central to the European Union (EU) 547/2012 Standard. Pump Type European MEI=0.1 “C” Value North American Database Failure Rate MEI=0.1 MEI=0.4 “C” …

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  • Centrifugal Pump Efficiency Calculation - EIT ...

    Centrifugal pump efficiency equation. Centrifugal pump efficiency = Power Output from Pump Power Input to Pump * 100. Centrifugal Pump Efficiency and Discharge Temperature. Actual Power required in pump can also be derived from Heat balance across the pump.Difference in Heat flow Outlet and Heat flow inlet is the actual …

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  • Movitec B - KSB

    2013-5-2 · The efficiency of a pump with a trimmed impeller is usually lower than that of a pump with the full impeller diameter. Trimming of the impeller will adapt the pump to a fixed duty point, leading to reduced energy consumption. The minimum efficiency index (MEI) is based on the full impeller diameter.

    Get Price
  • Centrifugal Pump Efficiency ~ ME Mechanical

    Volumetric efficiency of a centrifugal pump (η v) is defined as the ratio of the actual flow rate delivered by the pump to the theoretical discharge flow rate (flow rate without any leakage) that must be produced by the pump. Volumetric efficiency can be used to determine the amount of loss of liquid due to leakage in a pump during …

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  • Pump Efficiency—What Is Efficiency?

    2012-1-20 · Editor's Note: This is the first in a six-part series on centrifugal pump efficiency. For other articles in this series, click Centrifugal Pump Efficiency series.. In this multi-part series, we will investigate several aspects of centrifugal pump efficiency.First, I will define efficiency and give some examples.

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  • How To Calculate Hydraulic Pump and Motor

    2015-2-2 · Overall efficiency is simply the product of volumetric and mechanical/hydraulic efficiency. So continuing with the above example, the overall efficiency of the pump is 0.9 x 0.91 x 100 = 82%. Overall efficiency is used to calculate the drive power required by a pump at a given flow and pressure.

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  • 14 energy-efficiency improvement opportunities

    2015-10-25 · Higher efficiency motors have been shown to increase the efficiency of the pump system 2% to 5%. Go back to Index 6. Proper pump sizing. A pump may be incorrectly sized for current needs if it operates under throttled conditions, has a high bypass flow rate, or has a flow rate that varies more than 30% from its best efficiency …

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  • Stratos GIGA 40/1-51/4,2 | Wilo

    High-efficiency in-line pump with EC motor of energy efficiency class IE5 in accordance with IEC 60034-30-2 and electronic power adjustment in glanded pump construction.The pump is configured as a single-stage low-pressure centrifugal pump with flange connection and mechanical seal.

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