Abstract:
From the beginning of civilization, people have been using different types of fuels for
preparing their meals. Nowadays a number of cooking stoves for different fuels are
available in Bangladesh and all over the world. The main objectives of this project were
to study the efficiency of all types of cooking stoves av.ailable in Bangladesh and to
improve the efficiency of the best available traditional gas burner. All available models
were collected and studied. The standard water-boiling test was used to measure the
efficiency of the stoves. Experimental results are comparable with published results. A
new model for the natural gas burner was developed by placing a guard around the vessel
to restrict the flow of the flue gas. The performance of this model was evaluated. The
results showed that the guard increased the efficiency by 4% - 10% depending on the
shape and the model of the gas burner. A comparative study has been performed to
identify the most suitable cooking stove. This was done by estimating the economic cost
of the fuels used by the various cookstoves. The efficiencies found in this study was used
in this estimation. The improved biomass-cooking stove was found to be suitable for rural
areas and the improved gas burner with the guard (the model developed in this study) was
found to be suitable for urban areas.
