Simulating Consumer-Like Air Drying of Dishes via Thermal Drying Process

Susanne Gorny; Jessica Widdig; Sandra Bichler; Rainer Stamminger

doi:10.3139/113.110330

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Simulating Consumer-Like Air Drying of Dishes via Thermal Drying Process

Susanne Gorny , Jessica Widdig , Sandra Bichler und Rainer Stamminger

Veröffentlicht/Copyright: 25. September 2014

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Aus der Zeitschrift Tenside Surfactants Detergents Band 51 Heft 5

Abstract

The current EN 50242/EN 60436:2008 tests the performance of electric household dishwashers by using soiled dishes persistently dried in a thermal cabinet. Assuming the conditions of soiling load and persistence of the soiling as representative for consumer behaviour may be challenged. The difficulty in laboratory testing is to simulate usage behaviour under restrictions of limited time and personnel conditions. The task was to verify if the thermal drying of dishes in a thermal cabinet is able to mimic the typical air drying of dishes in consumer households. Experiments were conducted comparing the cleaning performance of a dishwasher load after air drying the soiled dishes in controlled ambient conditions to the cleaning performance of a dishwasher load after a thermal drying process in a thermal cabinet. Results show that thermal drying is able to display dishwashing frequencies for 91.6% of German households.

Kurzfassung

Die EN 50242/EN 60436:2008 testet die Gebrauchseigenschaften von elektrischen Haushaltsgeschirrspülmaschinen mithilfe einer hartnäckig eingebrannten Testanschmutzung. Um verbraucherrelevante Beurteilungen zu ermöglichen, sollten Menge und Hartnäckigkeit der Anschmutzung den in Haushalten beobachteten Bedingungen entsprechen. Limitierte Einsatzmöglichkeiten der Faktoren Zeit und Personal erschweren eine verbrauchernahe Laborprüfung. Ziel der Studie war es zu untersuchen, ob die Trocknung von Geschirr in einem Wärmeschrank die Lufttrocknung in Haushalten nachstellen kann. Dazu wurden Versuche durchgeführt, in denen die Reinigungsleistung von luftgetrocknetem Geschirr mit der Reinigungsleistung von in einem Wärmeschrank thermisch getrocknetem Geschirr verglichen wurde. Die Ergebnisse zeigen, dass die getesteten Einstellungen der Ofentrocknung die Spülhäufigkeit von 91.6% der deutschen Haushalte abbilden kann.

Key words: Dishwasher testing; consumer behavior; cleaning performance; measurement standard

Stichwörter: Geschirrspülmaschinentest; Verbraucherverhalten; Reinigungsleistung; Bewertungsvorschrift

* Correspondence address Susanne Gorny, Institut für Landtechnik, Sektion Haushaltstechnik, Nussallee 5, 53115 Bonn, Germany. Tel.: 0049-228-735955, Fax: 0049-228-732596, E-Mail: haushaltstechnik@uni-bonn.de

Susanne Gorny has a diploma in nutrition and household science and works as research assistant at the University of Bonn in the Household and Appliance Technology Section. The subject of her doctorate is about low energy electric household dishwashing.

Jessica Widdig finished her B.Sc. in Nutrition and Food Science at the University of Bonn in Germany at the Household and Appliance Technology Section. Currently she is working on her Master's degree in Nutritional Sciences at the Martin-Luther-University Halle-Wittenberg in Germany at the Institute of Agricultural and Nutritional Sciences.

Sandra Bichler is a PhD-student at the University of Bonn at the Household and Appliance Technology Section. Sandra has completed her degree in nutrition science and home economics. She has worked in different research areas with focus on end-users behaviour regarding laundry treatment, usage of cooling appliances, coffee machines and automatic dishwashers. Her PhD thesis deals with consumer behaviour regarding the energy efficient usage of automatic dishwashers. She is also a member of national and international communities who deal with household appliances and a sustainable usage from consumer perspective.

After 17 years of practical experience in the development of washing machines and dishwasher with AEG Hausgeräte, Germany Rainer Stamminger was promoted in 2002 as professor for appliance and process engineering at University of Bonn. Main areas of research at University are consumer behaviour of homework with and without using appliances, new products or features, smart appliances, robots for household application and questions of sustainability of housekeeping.

References

1. Wiel, S. and McMaho, J. E.: Energy-Efficiency Labels and Standards: A Guidebook for appliances, equipment and lighting, Collaborative Labelling and Appliance Standard Program (CLASP), Washington D.C. (2005). DOI: 10.2172/877316Suche in Google Scholar

2. http://www.hausgeraete-plus.de/geschirrspueler/energieverbrauch.php.Suche in Google Scholar

3. CENELEC (Ed.): EN 50242/EN 60436:2008_3: Electric dishwashers for household use – Methods for measuring the performance, Brussels (2008).Suche in Google Scholar

4. Brückner, A., Schneider, M. and Stamminger, R.: A New Place Setting – Consumer-Relevant Measuring Unit for Domestic Dishwashers, Tenside Surfact. Det.49 (2012) 48–56. DOI: 10.3139/113.110166Suche in Google Scholar

5. Richter, C. P.: In-house consumer study on dishwashing habits in four European countries: Saving potentials in households with dishwashing machine, Shaker Publishing, Aachen (2010).Suche in Google Scholar

6. Richter, C. P.: Automatic dishwashers: efficient machines or less efficient consumer habits?, Int. J. Consum. Stud.34 (2010) 228. DOI: 10.1111/j.1470-6431.2009.00839.xSuche in Google Scholar

7. Hubbuch, M. A. and Goodall, K. G.: Amount and composition of soils in German dishwashers – Comparison to standard test conditions, SOFWAF125 (1999) 14.Suche in Google Scholar

8. Zott, A. and Hubbuch, M. A.: Durchschnittliche Verbraucherbeladung beim maschinellen Geschirrspülen, SOFWAF134 (2008) 48.Suche in Google Scholar

9. Stamminger, R. and Streichardt, C.: Selected Aspects of Consumer Behaviour in the Manual and Mechanical Dishwashing in Germany, SOFWAF135 (2009) 50.Suche in Google Scholar

10. IEC-Paper, Project-Nr.: 60436 Ed.4.0 59A/168/CD: 2012–05 IEC 60436 Ed.4: Electric dishwashers for household use – Methods for measuring the performance, (2012).Suche in Google Scholar

11. Gorny, S., Bichler, S. and Stamminger, R.: A consumer-orientated load and soiling for testing the performance of automatic household dishwashers, H&PCToday8 (2013) 28.Suche in Google Scholar

12. Schneider, M.: Consumer behaviour in dishwashing and cleanser consumption in German households, Proceedings to SEPAWA (2011).Suche in Google Scholar

13. Wilson, D. I.: Challenges in Cleaning: Recent Developments and Future Prospects, Heat Transfer Eng26 (2005) 51. DOI: 10.1080/01457630590890175Suche in Google Scholar

14. Stanga, M.: Sanitation, cleaning and disinfection in the food industry, Wiley-VCH Publishing, Weinheim (2010). DOI: 10.1002/9783527629459Suche in Google Scholar

15. Detry, J. G., Sindic, M. and Deroanne, C.: Hygiene and cleanability: A focus on surfaces, Crit. Rev. Food Sci.50 (2010) 583. DOI: 10.1080/10408390802565913Suche in Google Scholar PubMed

16. Day, J. M.: Strength of Bonding of Food soils todishes, J. Am. Oil Chem. Soc.52 (1975) 461. DOI: 10.1007/BF02637490Suche in Google Scholar

Received: 2014-01-03

Revised: 2014-06-20

Published Online: 2014-09-25

Published in Print: 2014-09-15

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Artikel in diesem Heft

https://doi.org/10.3139/113.110330

Schlagwörter für diesen Artikel

Dishwasher testing; consumer behavior; cleaning performance; measurement standard