Coconut shell charcoal briquette machine performance test based on AC electric motor RPM and Brinell hardness test
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Author |
Nelson Seleman Luppa, Jedithjah Naapia Tamedi Papia, Adrian Maidangkay, Adolf Tonny Rasuh, Meike Negawati Kesek and Valderino Betrand Abram Tasin
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e-ISSN |
1819-6608 |
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On Pages
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1677-1682
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Volume No. |
20
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Issue No. |
19
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Issue Date |
January 10, 2026
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DOI |
https://doi.org/10.59018/1025190
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Keywords |
coconut shell charcoal, briquette machine, tapioca and starch adhesive, brinell hardness test, AC electric motor.
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Abstract
This test aimed to determine the effect of loaded and unloaded coconut shell charcoal briquettes with tapioca and starch adhesives on the AC electric motor RPM during the briquette-making process, and to obtain optimal hardness values for both coconut shell charcoal briquettes with tapioca and starch adhesives. The hardness testing method for coconut shell charcoal briquettes used the Brinell hardness test, using samples of coconut shell charcoal briquettes with tapioca and starch adhesives. The measurement used was an optical one, measuring the size of the indentation left by the indenter. Standard optical hardness testing methods include the Brinell hardness test (ISO 6506, ASTM E10). Based on the results of the briquette machine test for 7 minutes with a load of 15 kg, the coconut shell charcoal with starch adhesive produced an AC electric motor RPM of 702.9, while the coconut shell charcoal with tapioca adhesive produced an AC electric motor RPM of 884.7. The average hardness test results of coconut shell charcoal briquettes with tapioca adhesive have a value of 17.33 HRB, while coconut charcoal briquettes with starch adhesive have a value of 21.36 HRB. The hardness value of coconut shell charcoal briquettes with starch adhesive is harder or more optimal than coconut shell charcoal briquettes with tapioca adhesive.
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