Direct Improvement in the Combustion Chamber and the Radiant Surface to Reduce the Emission of Particles in Biomass Cooking Stoves Used in Araucanía, Chile

Robinson Betancourt Astete, Nicolás Gutiérrez-Cáceres, Marcela Muñoz-Catalán and Tomas Mora-Chandia
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Robinson Betancourt Astete: Mechanical Engineering Department, University of La Frontera, Temuco 4780000, Chile
Nicolás Gutiérrez-Cáceres: Mechanical Engineering Department, University of La Frontera, Temuco 4780000, Chile
Marcela Muñoz-Catalán: Mechanical Engineering Department, University of La Frontera, Temuco 4780000, Chile
Tomas Mora-Chandia: Mechanical Engineering Department, University of La Frontera, Temuco 4780000, Chile

Sustainability, 2021, vol. 13, issue 13, 1-19

Abstract: Solid particle emissions from burning wood in three internal combustion biomass cooking stoves commonly used in southern Chile were compared. Each stove was used to show differences in sealing systems, combustion chamber shape, and heating surfaces in order to optimize biomass combustion and the energy produced at a low manufacturing cost. The influence of cooking stove design along with particle and gas emissions that resulted from the biomass combustion within the cooking stove was investigated in this study. Levels of diverse atmospheric contaminants, such as particulate matter, emission factor, NO x , CO 2 , and CO, and the temperature of the flue gases were determined with the Ch-28 method and UNE-EN 12815. The average emission of particulate matter was significantly reduced by modifying the geometry of the combustion chamber and heating surface of each stove, resulting in 5 g/h particle emissions in conventional equipment and 2 g/h in the improved equipment. In relation to gas emissions, there was a 25% maximum decrease in NO x gases and 35% in CO after modifying the heating surface of each stove. This background supports the evidence of technological improvement with high environmental impact and low economic cost for local manufacturers.

Keywords: particle emission; biomass combustion; biomass cooking stoves; domestic heating (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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