Study on the efficiency of charcoal briquettes from macadamia nut shells mixed with chicken egg shells

Abstract

This research to study the combustion duration and maximum boiling water temperature of charcoal briquettes made from macadamia nut shells mixed with chicken egg shells, o study the calorific value of charcoal briquettes made from macadamia nut shells mixed with chicken egg shells. and o study the relationship between the calorific value and the maximum boiling water temperature of charcoal briquettes made from macadamia nut shells mixed with chicken egg shells. The scope of this research is that the researcher used a charcoal compressor with dimensions               of 70 centimeters wide, 180 centimeters long, and 100 centimeters high. The screen resolution for sifting macadamia nut shell charcoal powder is 600 microns and chicken egg shell powder is 300 microns. The conditions for determining the mixture between charcoal from macadamia nuts and finely ground egg shells are divided into 3 levels: 80:20, 85:15 and 90:10. Charcoal briquettes are made by mixing charcoal powder from macadamia nut shells and finely ground egg shells, cassava flour and water in a ratio of 7:1:1, The weight of charcoal briquettes used in the efficiency study was 500 grams, the amount of water used for boiling to conduct the experiment was 1 liter, and the boiling time was 1 hour. Data collection the combustion duration, maximum boiling water temperature and calorific value of charcoal from macadamia nut shells mixed with chicken egg shells.

The research found that the burning time and the maximum boiling water temperature                   of the charcoal briquette from macadamia nut shell mixed with chicken egg shells, which had the highest boiling water temperature, were found to be 99 degrees Celsius. The calorific value of charcoal briquettes from macadamia nut shell mixed with chicken egg shells at the mixing ratio with the highest calorific is from 85:15. The average heat energy value is 25.33 MJ/kg.                       The relationship between calorific value and maximum boiling water temperature of charcoal briquettes from macadamia nut shell mixed with chicken egg shell It was found that the highest heat energy and boiling water temperature at the mixing ratio of is from 85:15 the highest heat energy value of 25.33 MJ/kg and the highest water temperature of 97 degrees Celsius.