New flame spreader for household cooker - phase 2

• Grant number: 18/23594-7
• Support Opportunities: Research Grants - Innovative Research in Small Business - PIPE
• Start date: August 01, 2019
• End date: December 31, 2021
• Field of knowledge: Engineering - Mechanical Engineering - Transport Phenomena
• Agreement: FINEP - PIPE/PAPPE Grant
• Principal Investigator: Daniel Solferini de Carvalho
• Grantee: Daniel Solferini de Carvalho
• Company: Solferini Ltda
• CNAE: Atividades de serviços pessoais não especificadas anteriormente
• Pesquisadores principais: João Andrade de Carvalho Junior
• Associated researchers: Fernando Henrique Mayworm de Araujo
• Associated research grant: 17/15785-4 - New flame spread for household cooker, AP.PIPE
• Associated scholarship(s): 19/23185-2 - New flame spreader for household cooker: phase 2: conceded fellowship, BP.PIPE

Abstract

Currently there is no domestic gas oven commercialized in Brazil that utilizes a swirl flame. In the tests performed during the PHASE 1 of this project, using simple burner prototypes, the use of swirlers resulted in an energetic efficiency of 71%. This value is 6% above the most efficient in the Brazilian market (67%) (71/67 is 1.06).To improve the models that presented the highest efficiency, it new burners designed based on results of computational thermo fluid dynamics are proposed based on those developed in PHASE 1. The numerical modelling has the potential of providing a high increase of efficiency. This will allow design with adjustment of the air/fuel ratio, reduction of CO, and optimization of heat transfer to the pan. To make feasible the technology transfer and the production in commercial scale, there is the need to investigate the manufacturing processes to adequate the model format to current fabrication equipment and available technologies in the country so that fabrication becomes possible at a low cost. Finally, a study of the market will be carried out, considering the gains obtained from a burner with at least 71% of efficiency. (AU)