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

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





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


Influence on performance

Energy

Time

Reduced temperatures - longer times

Decrease Temperature


Influence on performance

Energy

Time

Reduced temperatures - longer times

Decrease Temperature

Increase Time


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.



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