- A study on the fluid dynamics of domestic Gas burners
- Gattei, Lorenzo <1978>
Subject
- ING-IND/06 Fluidodinamica
Description
- Domestic gas burners are investigated experimentally and numerically in order to further understand the fluid dynamics processes that drive the cooking appliance performances. In particular, a numerical simulation tool has been developed in order to predict the onset of two flame instabilities which may deteriorate the performances of the burner: the flame back and flame lift. The numerical model has been firstly validated by comparing the simulated flow field with a data set of experimental measurements. A prediction criterion for the flame back instability has been formulated based on isothermal simulations without involving the combustion modelization. This analysis has been verified by a Design Of Experiments investigation performed on different burner prototype geometries. On the contrary, the formulation of a prediction criterion regarding the flame lift instability has required the use of a combustion model in the numerical code. In this analysis, the structure and aerodynamics of the flame generated by a cooking appliance has thus been characterized by experimental and numerical investigations, in which, by varying the flow inlet conditions, the flame behaviour was studied from a stable reference case toward a complete blow-out.
Date
- 2009-04-17
Type
- Doctoral Thesis
- PeerReviewed
Format
- application/pdf
Identifier
urn:nbn:it:unibo-1530
Gattei, Lorenzo (2009) A study on the fluid dynamics of domestic Gas burners, [Dissertation thesis], Alma Mater Studiorum Università di Bologna. Dottorato di ricerca in Disegno e metodi dell'ingegneria industriale