Europump's Pump Efficiency

Program

HI Annual Meeting 2012St. Petersburg, Fl

Remember the Objective

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• Save Energy – Selection of properly sized pump– Optimum combination of components– System feedback

Current EU Approach

• Water Pumps– Focus on product – Pump only without drive or VFD– Legislation in Parliament– Expected European Official Journal Summer

2012

• Heating Circulators– Focus on Pump, Motor, VFD and Controls– Regulation in place

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What is wanted by EU?

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• Quantification of Energy Savings

• Intrinsic product property / scale / index

• Energy evaluation / comparison of products– mandatory thresholds– Labeling/marking

EuP Water Pumps Regulation - draft

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Chapter 1Subject matter and scope

1. This Regulation establishes ecodesign requirements for the placing on the market of rotodynamic water pumps for clean water duty, including where integrated in other products.2. This Regulation shall not apply to:

(a) water pumps designed specifically for pumping of clean water with temperatures below -10°C or above 120 °C, except as regard to the information requirements of Annex II, point 2(11) to 2(15);

(b) water pumps designed only for fire-fighting applications;

(c) displacement water pumps;(d) self-priming water pumps.

EuP Water Pumps Regulation - draft

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ANNEX IIEcodesign requirements for water pumps

1. efficiency requirements (A) From 1 January 2013, water pumps shall have a

minimum efficiency index of MEI ≥ 0.10, when measured according to Annex III.

(B) From 1 January 2015, water pumps shall have a minimum efficiency index of MEI ≥ 0.40, when measured according to Annex III.

Future EU Approach

• Pumps– Extended Product Approach– Legislation Draft:

Article 7Revision

The Commission shall review this Regulation in the light of technological progress and shall present the result of this review to the Consultation Forum no later than four years after its entry into force. The review shall aim at adopting an extended product approach. …….

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Heating Circulator Proven Approach

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H

Q0.25 0.5 0.75 1.0

44%

35%

15%

6%

% of running hoursTotal hours depend on

geographical region

Heating Circulator Proven Approach

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2004 2008 2010

1,6 14.9 28.9

3,3 40.5 39.7

41,3 25.9 19.8

52,8 16.8 9.7

0,8 1.6 1.5

0,2 0.3 0.3

0 0 0.1

Quelle: EuropumpQuelle: Europump

Extended Product Approach = Motor Driven System

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Electric Motor

Spiral Casing with Impeller

Coupling

VSD,Control,

Monitoring

Mains

Base Plate

Fluid Outlet

Fluid Inlet

System Feedback

Extended Product Approach ?

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Electric Motor

VSD,

Control,

Monitoring

indexindex

Working Group

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• Pump Manufactures - EUROPUMP• Motor Manufacturers• Drive Manufacturers• CEN & CENELEC• Scientific support by Technical

University of Darmstadt

What is needed ?

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• Load Profile Definition– Generalized but realistic

• Reference Definition (Base Case)

• Market Figures

Definitions

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• Within EUROPUMP, a methodology and a draft standard

will be developed for the determination of energy

efficiency of pump units

• Pump units consisting of pump + power drive system

(PDS) are defined as Extended Products

• EEI (Energy Efficiency Index) proposed to quantify

energy efficiency of pump units

• Activities concerning energy efficiency of pump units are

called EPA (Extended Product Approach)

• Mandate in draft legislation of Water Pumps and new EU

ErP work items

Methodology for EEI

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• The proposed methodology to determine EEI of

pump units will comprise two alternative ways:

1. test of the complete pump unit

2. calculations based on so-called Semi-Analytical Models

(SAMs)

(normally done by the end-supplier of the complete pump

unit)

• For application of the 2nd method, two SAMs are

needed• SAM of pumps

• SAM of Power Drive Systems

• Semi-Analytical Model = mathematical description

of component characteristics which only needs

limited test data as input to adapt the model to the

real component

Semi-Analytical Model of pumps

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• SAM of pumps is based on hydrodynamic

fundamentals and is adjusted by test data at 3

specified flow rates

• These test data can directly be taken from former

tests by the pump manufacturer already

mandatory to quantify the energy efficiency of the

pump itself (EuP)

• SAM of pumps delivers rotational speed n and

shaft torque T for pump operating conditions

(specified by defined load profiles and pressure

control curves)

Scheme of determination EEI

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Input Software

PDS Loss/Efficiency Points CLC TC 22x WG6

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PDS ratedtorque / %

PDS ratedspeed / %

25

100

50 100

PV PDS (0;100) PV PDS (50; 100) PV PDS (100; 100)

50

PV PDS (0; 50) PV PDS (50; 50) PV PDS (100; 50)

PV PDS (0; 25) PV PDS (50, 25)

Pump Load driven by PDS

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PDS ratedtorque / %

PDS ratedspeed / %

25

100

50 100

PV PDS (0;100) PV PDS (50; 100) PV PDS (100; 100)

50

PV PDS (0; 50) PV PDS (50; 50) PV PDS (100; 50)

PV PDS (0; 25) PV PDS (50, 25)

What exists ?

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EEI Energy Efficiency Index for Circulators

EEI for Pumps under preparationPDS Classes under preparationMarket figures for EuropeEfficiency Standard for pumpsLegislative mandates to work on

EEI

What we need on standardization for PDS

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• Standard(s) should describe test method(s) for related PDS losses including information on tolerances / allowable uncertainties

• Standard(s) should specify supporting points withinrelated PDS losses = f(T,n)-map suitable for an interpolation scheme valid within the range of „EEI pump operating points“

• Standard(s) should clarify the responsibilities and the procedures to determine and indicate related PDS losses by motor/frequency inverter manufacturers

EuP - New Work Items

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ENER Lot 28:             Pumps (extended product approach including motors, VSD and controls, where appropriate) for private and public waste water (including all stages including buildings, networks and treatment facilities) and for fluids with high solids content

ENER Lot 29: Pumps (extended product approach including motors, VSD and controls, where appropriate) for private and public swimming pools, ponds, fountains and aquariums, as well as clean water pumps larger than those regulated under Lot 11

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Ecodesign Directive 2009/125/EC

Draft Working Plan (2012-2014): issued by DG ENTR bef. Xmas 2011 - Comments by 08.02.2012 finalised by mid-April 2012

• Windows• Steam boilers (< 50MW)                            • Power cables• Enterprises servers, storage and ancillary equipment• Smart appliances/meters• Positive displacement pumps (depending on lots 28-31)• Fractional horse power motors under 200W (depending on lots 28-31)• Heating controls• Lighting controls