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In this study, an appropriate, cost effective and easy to operated biomass briquetting machine was developed through animal power rotary mode unit. The machine was tested to produce low density briquettes by different biomass like charcoal, paddy husk, pigeon pea and saw dust. The physical properties and proximate analysis was carried out for produced briquettes. The maximum compressed density 1.82gm/cm 3 obtained in charcoal briquettes and Maximum shattering resistance 90.14% was determine in charcoal briquettes. The maximum moisture content 63.11% was found in pigeon pea briquettes and minimum 47.23% in charcoal briquettes. Paddy husks briquette and pigeon pea briquettes were found maximum and minimum ash content 10.6% and 3.40% respectively. The optimum volatile matter was found in pigeon pea briquettes 21.3% and minimum 17.74%for paddy husk. The charcoal briquettes contained maximum fixed carbon percentage 29.85% and minimum 7.85% in saw dust. The higher calorific value was obtained for charcoal briquette as 4500 Kcal/kg which emits the higher energy as compare to other biomass and the minimum value was found for paddy husk as 3250 Kcal/kg.

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No abstract

A smokeless stove is intended to reduce dangerous exposure to unnecessarily high levels of smoke, avoiding the aforementioned illnesses, while maintaining desirable aspects of current cooking techniques, including reliability, simplicity and low cost. In addition, the design intends to promote sustainable practices and encourage future endeavors in healthy and sustainable designs. It is proposed that this smokeless stove design is developed as a replacement to existing cooking methods. The cook stove is tested by biomass energy of dry wood, sugarcane waste and groundnut shell as fuel. Two tests on this cook stove is carried out by boiling water and cooking food, time is noted to boil water and to cook food (rice) by keeping quantity of fuel, water and food constant.