Design optimization of mechanical valves in dishwashers based on the minimization of pressure losses

Kılavuz, Furkan (author), Kiral, Binnur Gören (author)

Energy savings, albeit very small, are of great importance for devices whose use has become indispensable. In this study, an optimization based on sustainability and energy saving was aimed at designing the valve used in a white goods company's mass production of dishwashers. One significant factor that affects the overall efficiency of a dishwasher is pressure loss within the mechanical valve system. By optimizing the system, it is possible to minimize pressure loss and increase overall efficiency. To this end, 4th-order Bézier curves, which are used to model the blades of the impeller, were obtained using MATLAB R2023a software. Using Bézier curves, solid models of impellers with different blade profiles and numbers were created with SOLIDWORKS 2021 software. Fifty different models with six different blade numbers and five different materials were considered. In the numerical analyses, pressure losses were determined using ANSYS Fluent 2023R2 software. In addition to numerical analysis, blades were produced using the additive manufacturing method, and outlet pressures were measured experimentally. The experimental results were compared with the computational fluid dynamics analysis findings to evaluate the performance of different impeller designs. To determine the optimal design, the design of experiments and response optimizer approaches are applied, which enables the systematic evaluation of different design parameters. Furthermore, using numerical results, an artificial neural network model was created, and efficiency was predicted for the optimum parameters. Experimental and numerical results show that the optimum blade design enables the least pressure loss.

• Language: English
• Keywords: dishwashers, energy-saving, impeller blade design optimization, statistical analysis, artificial neural network
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FS - Faculty of Mechanical Engineering
• Publication status: Published
• Publication version: Version of Record
• Year: 2024
• Number of pages: Str. 194-208
• Numbering: Vol. 70, no. 3/4
• PID: 20.500.12556/RUL-155759
• UDC: 64:007.52
• ISSN on article: 0039-2480
• DOI: 10.5545/sv-jme.2023.768
• COBISS.SI-ID: 192689667
• Publication date in RUL: 16.04.2024

Record is a part of a journal

• Title: Strojniški vestnik
• Shortened title: Stroj. vestn.
• Publisher: Zveza strojnih inženirjev in tehnikov Slovenije [etc.], = Association of Mechanical Engineers and Technicians of Slovenia [etc.
• ISSN: 0039-2480
• COBISS.SI-ID: 762116

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

• Language: Slovenian
• Title: Optimizacija konstrukcije mehanskega ventila za pomivalni stroj na podlagi minimizacije tlačnih izgub
• Keywords: pomivalni stroji, varčevanje z energijo, optimizacije oblike lopatic rotorja, statistična analiza, umetna nevronska mreža

Projects

• Funder: Other - Other funder or multiple funders