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Combustion Analysis Process of Old Coconut, Young Coconut and Cocoa Waste Briquettes

Author(s) Name:

Wahidin Nuriana, Agus Suryanto & Mustafa Kamal

Abstract

The potential of biomass energy in Indonesia was quite large. Biomass energy can be explored from agricultural waste, biomass that was easily available and abundant for example: old coconut waste, young coconut waste and cocoa waste. The purpose of this study was to obtain charcoal briquette heating value from the biomass of old coconut waste, young coconut waste and cocoa waste. The study was conducted in a laboratory, and using a randomized design complete with 3 repetitions. The research was carried out by sorting raw materials, chopping, drying, carbonizing, grinding, sieving, by adding tapioca glue, printing, and pressing at 115 kg / cm2. Carbonization at 400oC, for 30, 60, 90 and 120 minutes. In briquettes, density analysis, calorific value, the highest calorific value of old coconut waste briquettes, young coconut waste and cocoa waste were analyzed for mass reduction and combustion reaction rates. The results of the old coconut briquette density test were 0.937g / l, the highest heating value was 6.927 cal / g with a carbonization time of 90 minutes. The old coconut briquettes have the slowest or lowest rate of combustion reaction compared to the rate of burning of young coconut briquettes and cocoa. The effect of the higher density value, the higher the briquette calorific value and the slower or lower combustion rate. In the Thermogravimetry test using Thermal Gravimetry Analyzer (TGA), the highest reduction in mass weight in old coconut waste briquettes compared to young coconut waste briquettes and cocoa waste briquettes was 55.34% from a temperature of 590.5 oC to 599.2 oC. On Thermal Gravimetry Differential. (DTG) shown the rate of combustion reaction in old coconut waste briquettes was 0.10% / minute with an air rate of 5 ml / minute.

 

Keywords:

Briquette, Heating Value, Reaction Rate, Activation Energy.

Please cite this article as:

Wahidin Nuriana, Agus Suryanto& Mustafa Kamal (2019). Combustion Analysis Process of Old Coconut, Young Coconut and Cocoa Waste Briquettes. International Journal of Recent Research and Applied Studies, 6, 1(2), 4-9.