Use of computational fluid dynamics in domestic oven design

Mark Fahey, Sarah J. Wakes, Christopher T. Shaw

Abstract


There is an increasing demand, both from customers and regulatory sources, for safer and more energy efficient products. Manufacturers are having to look to their design and development processes to service these demands. Traditional approaches have been to use prototype testing and only delve more deeply into specific aspects of the performance when issues arise. In this work the complex flow within the cooling circuit of the door of a pyrolytic oven is studied. A combination of Computational Fluid Dynamics (CFD) and experimental techniques is used. It will be shown that CFD can help with the achievement of an optimal solution, with the understanding of the flow behaviour and that there is a synergy between the numerical and experimental techniques. Using only one of these techniques would limit the understanding of the flow behaviour and could lead to a less than optimal solution to the design problem. This work aims to explore this particular complex industrial fluid flow situation to:

understand the flow around the oven door’s cooling circuit 

demonstrate the synergy of CFD and experimental work within development of a complex product

explore the role of CFD within the product development process. 


Full Text:

PDF

References


B. Dabell, C. Musiol and M. Pompetzki, The Benefits of Computer Aided Engineering, in J. H. Edwards and P. E. J. Flewitt ed(s), Fifth International Conference on Engineering Structural Integrity Assessment, 2000.

UL 858, Standard for Safety - Household Electric Ranges.

AS/NZS3350.2.6:1998 (IEC 60335-2-6-1997), Safety of Household & Similar Electrical Appliances. Part 2.6 Particular Requirements - Stationary Cooking Ranges, Hobs, Oven & Similar Appliances.

P. Verboven, N. Scheerlinck, J. De Baerdemaeker and B. M. Nicolai, Computational Fluid Dynamics Modelling and Validation of the Isothermal Airflow in a Forced Convection Oven, J. Food Engineering, 2000, 43 41–53.

P. Verboven, N. Scheerlinck, J. De Baerdemaeker and B. M. Nicolai, Computational Fluid Dynamics Modelling and Validation of the Temperature Distribution in a Forced Convection Oven, J. Food Engineering, 2000, 42 61–73.

P. Gerhardinger, Next Generation Heated Glass Products for Food Service Appliances, in ed(s), 54th International Appliance Technical Conference, 2003.

T. Sümer, E. Dirik, Ö. Akbas and A. Kara, Thermal Analysis and Simulation of an Electric Oven, 45th IATC, 1994.

R. P. Lovingood, E. A. De Merchant and L. J. Himes, Oven Performance In Convention vs. Radiant Mode,

th IATC, 1995.

C. Aydin, E. Dirik, T. Sümer and M. Y. Tanes, Computational Analysis of Flow Characteristics In an Oven,

th IATC, 1995.

D. Ward, Basic Thermal Modeling of Oven Cooking and the ‘Brick’ Test, 53th International Appliance

Technical Conferences, 2002.

A. Kayõhan, B. Özyurt and C. Inan, A Method for Determining the Heat Loss Characteristics of an Oven,

th International Appliance Technical Conferences, 2003.

ANSYS Inc, CFX-5.7.1 Theory Manual, ANSYS, 2005.

R. Subrata, K. Sagar and J. Heidmann, Film Cooling Analysis Using DES Turbulence Model, in ASME Turbo Expo, 2003.

K. K. Dhinsa, C. J. Bailey and K. A. Pericleous, Turbulence Modelling and its Impact on CFD Predictions for Cooling of Electronic Components, in Inter Society Conference on Thermal Phenomena, 2004.

J. C. S. Lai and C. Y. Yang, Numerical Simulation of Turbulence Suppression: Comparisons of the Performance of Four k-e Turbulence Models, Int. J. Heat and Fluid Flow, 1997, 18 575–584.

WS Atkins Consultants, Best Practice Guidelines for Marine Applications of Computational Fluid Dynamics, 2002.

D. C. Wilcox, Basic Fluid Mechanics, D C W Industries, La Canada, 1998.

F. R. Menter, Two-Equation Eddy-Viscosity Turbulence Models for Engineering Applications, AIAA Journal,

, 1598–1605.

F. R. Menter, Zonal Tow-Equation k-w Turbulence Models for Aerodynamic Flows, AIAA Paper, 1993.

F. R. Menter, A Comparison of Some Recent Eddy-Viscosity Turbulence Models, Transactions on the SNAME, 1996, 118 514–519.

F. R. Menter and M. Kuntz, Development and Application of a Zonal DES Turbulence Model for CFX-5, 2003.

K. McEwen, APPS499 Report, 2005.




DOI: http://dx.doi.org/10.1260/175095408784300216

Copyright (c) 2016 The International Journal of Multiphysics