20 less energy consumption on washing machines how were the savings achieved
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ceced. 20% less Energy consumption on Washing Machines - How were the savings achieved ?. Rainer Stamminger (Electrolux) CECED, Vice president. Voluntary Agreement on Washing machines. Agreed between manufacturer / negotiated with EU Commission (DGXVII)

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20% less Energy consumption on Washing Machines - How were the savings achieved ?

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20 less energy consumption on washing machines how were the savings achieved

ceced

20% less Energy consumption on Washing Machines - How were the savings achieved ?

Rainer Stamminger (Electrolux)

CECED, Vice president


Voluntary agreement on washing machines

Voluntary Agreement on Washing machines

  • Agreed between manufacturer / negotiated with EU Commission (DGXVII)

  • As alternative to Efficiency directive

  • Based on Energy Label and referred to base-case as defined in GEA reports

  • Enables market forces to reach agreed target


Content of voluntary agreement on washing machines

Content of Voluntary Agreement on washing machines

  • Hard target

    • 20 % energy saving compared to base-case

    • elimination of models in classes D to G from market offer (exception class D for <600rpm or <=3kg)

  • Soft target

    • inform consumer on energy saving use of washing machines

    • co-ordinate with detergent industry (A.I.S.E.)

    • transfer energy saving technology to Washer-dryers


Main technical modifications

Main Technical Modifications

  • Reduced water in main wash

    • Reduced tub-drum clearance

    • Eco-valves, Jet-systems

    • lower levels

    • better control of level


Water level for main wash phase

Water Level for main wash phase


20 less energy consumption on washing machines how were the savings achieved

Reduced Water Level and reduced Tub/Drum clearance


20 less energy consumption on washing machines how were the savings achieved

Introducing Jet System


Main technical modifications1

Main Technical Modifications

  • Reduced water in main wash

    • Reduced tub-drum clearance

    • Eco-valves, Jet-systems

    • lower levels

    • better control of level

  • Reduced temperatures - longer times

    • loss of performance compensated by longer washing times


Reduced temperatures longer times

Influence on performance

Energy

Time

Reduced temperatures - longer times


20 less energy consumption on washing machines how were the savings achieved

Influence on performance

Energy

Time

Reduced temperatures - longer times

Decrease Temperature


20 less energy consumption on washing machines how were the savings achieved

Influence on performance

Energy

Time

Reduced temperatures - longer times

Decrease Temperature

Increase Time


20 less energy consumption on washing machines how were the savings achieved

Influence on performance

Energy

Time

Reduced temperatures - longer times


Main technical modifications2

Main Technical Modifications

  • Reduced water in main wash

    • Reduced tub-drum clearance

    • Eco-valves, Jet-systems

    • lower levels

    • better control of level

  • Reduced temperatures - longer times

    • loss of performance compensated by longer washing times

  • Electronic control

    • to have more accurate control

    • to apply advanced control procedures like fuzzy-logic


Achievements

Achievements

  • 20% saving could be reached in 1999 by improving almost all models

  • proven by notary reporting system

  • comparison of production and model based database show only very small differences

  • balancing of performance and energy was maintained

  • soft targets were successfully followed


Conclusions and outlook

Conclusions and Outlook

1. Maximum saving potential (25% as worked out by GEA study) is almost reached!

2. Optimisation has improved machine parameters relevant for all or most of the programs - the efficiency was improved!

3. Further and faster energy savings can be achieved by replacing old washing machines in the households by most efficient new ones.


Thank you

Thank you !


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