A High-Efficiency Clean Cookstove Designed for Processed Biomass fuel

Around 40% of the global population approximately half living in developed countries still rely on traditional biomass cookstoves for daily cooking. This widespread practice is a major source of indoor air pollution and adverse health effects due to the release of a hazardous pollutants such as particulate matter (PM_2.5) and carbon monoxide (CO). According to the WHO report, there is an estimated 3.8 million death annually from indoor air pollution. In this study a mini biomass pellet based forced draft domestic cookstove was developed and experimentally evaluated for its thermal performance and the emission characteristics, using the standard water boiling test. The stove demonstrated a thermal efficiency of up to 47% with CO and PM₂.₅ emissions are as low as 2.97 g/kg and 256.16 mg/kg respectively.  Therefore, there is 79% reduction in PM_2.5, 95% reduction in CO emissions and efficiency is 400% higher than the traditional cookstove being used by 2.7 billion people globally. These results meet the Tier 4 efficiency criteria of the ISO/IWA clean cookstove standards. The developed cookstove shows promising result and provide effective and clean cooking solution to 1/3^rd of humanity, particularly in the global south, while utilizing the carbon neutral fuel available locally.

Keywords: Forced draft cookstove, Thermal efficiency, Emission of Carbon monoxide and Particulate matter