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
slide14

Influence on performance

Energy

Time

Reduced temperatures - longer times

Decrease Temperature

slide15

Influence on performance

Energy

Time

Reduced temperatures - longer times

Decrease Temperature

Increase Time

slide16

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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