EVALUASI KADAR AIR, KADAR ABU, DAN KANDUNGAN KALORI BRIKET TEMPURUNG KELAPA HASIL PRODUKSI PT TROPICA NUCIFERA INDUSTRY BERDASARKAN SNI 01-6235-2000

RINI DWI NUGRAHENI, Dr. Wagiman, STP, M.Si

2014 | Tugas Akhir | D3 AGRO INDUSTRI

ABSTRAK Pemanfaatan limbah agroindustri sebagai bahan baku briket merupakan cara strategis untuk menggantikan sumber energi fosil yang harganya kian meningkat. PT Nucifera Industry mengolah limbah padat tempurung kelapa sebagai bahan baku pembuatan briket yang ramah lingkungan. Hasil pengolahan limbah padat tempurung kelapa ini diuji karakteristik briket dan analisa nilai tambah tempurung kelapa sebagai bahan bakar alternatif yang efisien dan ramah lingkungan. Metodologi yang digunakan adalah observasi pembuatan briket, menguji kadar air, kadar abu serta nilai kalori briket. Uji kadar air dan kadar abu ditimbang menggunakan neraca digital. Uji nilai kalori menggunakan kalorimeter. Uji karakteristik briket tersebut dibandingan dengan Standar Nasional Indonesia (SNI). Berdasarkan uji mutu briket dibandingkan dengan SNI, kadar air sampel 1 sebesar 4,5%, sampel 2 sebesar 4,45% dan sampel 3 sebesar 3,75% dengan rerata kadar air sebesar 4,23%. Rerata nilai kadar air ini melebihi standar nilai (maksimum 8%) SNI. Kadar abu sampel 1 sebesar 1,81%,0,76%, dan 0,41% dengan rerata kadar abu sebesar 0,99%. Rerata hasil kadarabu ini berada dibawah standar nilai ( maksimal 10%) SNI.Kadar air dan kadar abu sesuai SNI menunjukkan briket mudah terbakar dan daya nyala tahan lama. Nilai kalori pada sampel 1 sebesar 8.969 kJ, sampel 2 sebesar 10.917 kJdan sampel 3 sebesar 11.143 kJ, dengan rerata nilai kalori sebesar 10.343 kJ. Semakin besar nilai kalori briket semakin baik daya bakar briket tersebut. Dari analisa nilai tambah menunjukkan produksi briket tempurung kelapa menghasilkan nilai tambah sebesar Rp 10.484.000 per bulan. Hal ini menunjukkan bahwa briket tempurung kelapa cukup baik dan efisien sebagai alternatif bahan bakar.

ABSTRACT Utilization of agroindustry waste as a raw material of briquettes is a strategic way to replace fossil energy sources that cost increasing continuously. PT Nucifera Industry coconut shell processing of solid waste as a raw material for making briquettes are environmental friendly. The results of the processing of solid waste coconut shell are tested briquettes characteristics and analysis of value added as an alternative fuel efficient and environmental friendly. The methodology used are the briquettes observation, test the water content, ash content and calorific value of the briquettes. Test water content and ash content are weighed using a digital balance. Test the calorific value is used calorimeter. Test characteristics of the briquettes compared with the Indonesian National Standard (SNI). Based on the briquettes quality test are compared with SNI, the water content of the sample 1 of 4,5%; sample 2 of 4,45% and sample 3 of 3,75% with an average water content of 4,23%. It means that value of the water content exceeds the standard value (maximum 8%) SNI. Sample 1 ash content 1,81%, sample 2 of 0,76%, and sample 3 of 0,41% with an average ash content of 0,99%. The average results of the ash content is under the standard value (maximum 10%) SNI. The water content and ash content are concordant with SNI. It showed that the briquettes are combustible and durable flame. Calorific value of the sample 1 of 8.969 kJ; sample 2 of 10.917 kJ and sample 3 of 11.143 kJ with an average calorific value of 10.343 kJ. The greater calorific value showed the power of burning are better. From the analysis shows the added value of coconut shell briquette production generates added value of Rp 10.484.000, -per month. This suggests that the coconut shell briquette are good and efficient as an alternative fuel.

Kata Kunci : coconut shell, briquettes, calorific value, added value