Contribution to the current debate on the optimisation of the real-life-efficiency of automatic domestic dishwashers by using short programs with ‘high-performance’ detergents
Julian K. A. Schöning-Langowski, Anna Wendker, Ursula Pieper, Joerg Kinnius
AI summary
60% confidenceA recent proposal for a 'short ECO' program using 'high-performance' detergents was found to consume more energy and perform worse than a modern ECO program, contradicting the idea that HP-detergents alone can improve real-life-efficiency.
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Abstract
Abstract Developing programs for automatic domestic dishwashers requires balancing energy consumption and program duration with cleaning and drying performance. For the EU-regulated ECO program, an inherent trade-off in program duration and energy consumption may contribute to a usage frequency of around 20–30 %, thus offering potential for further improvement of dishwasher real-life-efficiency (RLE). Academic research suggests that dishwasher RLE may be enhanced by modifying consumer behaviour to increase ECO program use and by employing ‘high-performance’ (HP) detergents in short programs. Here, we show that a recently proposed chemistry-aided ‘short ECO’ program cleans and dries worse while consuming more energy than a modern ECO program, if measured according to the compulsory methodology of EN/IEC 60436. Hence, HP-detergents alone do not suffice to develop a ‘short ECO’ program equipotent to the conventional ECO program. Overall, enhancing dishwasher RLE is a complex topic involving both technological and social aspects. We propose crucial questions that should be addressed in future discussions, and argue that (a) a common definition of (types of) short programs, (b) an in-depth analysis of the relevance of short programs for dishwasher consumers, and (c) the consideration of practical issues are pivotal aspects for further enhancements of the real-life-efficiency and sustainability of dishwashers.
Key findings
- A 'short ECO' program using HP-detergents was found to consume more energy and perform worse than a modern ECO program.
- The use of HP-detergents alone does not suffice to develop a 'short ECO' program equipotent to the conventional ECO program.
- Enhancing dishwasher real-life-efficiency is a complex topic involving both technological and social aspects.
Keywords
Identifiers
- Journal
- Tenside Surfactants Detergents
- Year
- 2025