COAL AS AN ALTERNATIVE FUEL

Sahupala, Peter and Yusman, Nurjana (2019) COAL AS AN ALTERNATIVE FUEL. In: 1st International Conference on Materials Engineering and Management - Engineering Section (ICMEMe 2018), Januari 2019, Makassar.

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Official URL: https://www.atlantis-press.com/proceedings/icmeme-...

Abstract

This study was aimed to analyze coal a fuel in the form of briquettes. The coal was taken from the district of Digoel and was made cylindrical and processed without carbonization. Furthermore, the coal waspassed ultimate and proximate tests along with the analysis of nature and the combustion test of the coal briquettes. This study used an experimental method. Thechemical testing process of coal briquettes which consisted of proximate was conducted in Inorganic Chemistry Laboratory of Chemistry Department, Faculty of Mathematics and Natural Sciences University of Hasanuddin, Makassar. The analysis and testing of coal dust were more accentuated on the rates of solid carbon, volatile matter, ash, sulfur and calorific value. In addition, proximate analysis was done using titration method which included the rates of humid moisture, ash, volatile matter and solid carbon. Besides,the test of calorific value was performed using a bomb calorimeter. This method was based upon ASTM. The grain size of the mesh of 60 was the height x diameter (58.75 mm x 73.85 mm) x and the weight of briquettes, 1.55 gr. The average of mass was 510.11 grams, tapioca 10% of 32.52 grams, 650 ml of hot water. Besides, for the mesh of 80, the size, height x diameter, was 58.75 mm x 73.85 mm, x the weight: 1.95 grams. Furthermore, the average of mass was 543.20 grams, tapioca 10% of 38.61 grams, 700 ml of hot water. In addition, the results of test showed that the coal briquettes of60 mesh had the rates of water: 8.66%, ash: 6.18%, volatile metter: 37.04%, solid carbon: 18.64%, the compressive strength: 46.17 kg/cm2, sulfate: 3.67%, nitrogen: 0.39%, and fuel calorific value: 3307 kcal/kg. For mesh 80, the results obtained 7.16% with 7.21% of ash rate, 43.86% ofvolatile metter,20.78% of solid carbon, 74.74 kg/cm2of compressive strength, and 3783 kcal/kg. Besides, the test of calorific value was done by burning the coal briquettes in 1 liter or 1000 grams in boiling water. The water was boiled at a temperature of 100C ambient temperature. In addition, the different temperatures was performedto get the efficiency of thermal combustion. The boiling temperature of the mesh of 60 was 70C with 29C. The result showed that the thermal combustion of mesh 60 was 22.529% while mesh 80 was 17.314%.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Briquette, Coal, Cylinders, Boven Digoel
Subjects: T Technology > TJ Mechanical engineering and machinery
Divisions: Fakultas Teknik > Teknik Mesin
Depositing User: Peter Sahupala
Date Deposited: 31 Jul 2019 04:12
Last Modified: 03 Aug 2019 04:43
URI: http://eprints.unmus.ac.id/id/eprint/452

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