ABSTRAK Penelitian ini bertujuan untuk menganalisa karakteristik briket biomassa dengan variasi geometri dan jenis bahan baku briket biomassa yang berbeda dan menentukan perlakuan manakah yang menghasilkan briket dengan kualitas yang paling baik. Penelitian ini menggunakan RAK (Rancangan Acak Kelompok) Faktorial menggunakan 2 faktorial dan 3 kali ulangan. Faktor pertama adalah jenis bahan baku (A) yang terdiri dari tiga taraf yaitu bambu tabah (A1), sekam padi (A2) dan campuran bambu tabah sekam padi (A3). Faktor kedua yaitu bentuk geometri briket (B) yang terdiri dari dua taraf yaitu balok (B1) dan silinder (B2). Seluruh perlakuan diulang sebanyak 3 kali ulangan sehingga didapatkan 18 data pengamatan. Data yang diperoleh dianalisis dengan sidik ragam dan apabila terdapat pengaruh perlakuan yang signifikan, maka dilanjutkan dengan uji BNT terhadap rata-rata perlakuan. Hasil penelitian menunjukan bahwa Interaksi antar perlakuan jenis bahan baku dan bentuk geometri memberikan pengaruh yang signifikan terhadap parameter mutu briket yang dihasilkan, Perlakuan briket yang dibuat dari sekam padi dengan bentuk silinder (A2B2) merupakan perlakuan yang menghasilkan briket dengan kualitas paling baik dengan nilai kadar air sebesar 2,64% bb, kadar abu sebesar 6,60%, laju pembakaran sebesar 73,16 (gr/menit) dan volatille matter sebesar 13,86 %. ABSTRACT This study aims to analyze the characteristics of biomass briquettes with different geometry variations and types of biomass briquette raw materials and determine which treatment produces the best quality briquettes.This research uses block design (RAK) using 2 factorials and 3 replications.The first factor is the type of raw material (A) which consists of three levels, namely tabah bamboo (A1), rice husk (A2) and a mixture of tabah bamboo rice husk (A3). The second factor is the geometric shape of the briquette (B) which consists of two levels, namely beams (B1) and cylinders (B2). All treatments were repeated 3 times in order to obtain 18 observational data. The data obtained were analyzed by means of variance and if there was a significant treatment effect, then it was followed by the BNT test on the average treatment.The results showed that the interaction between treatments. Types of raw materials and geometric shapes had a significant effect on the quality parameters of the resulting briquettes.The treatment of briquettes made from rice husks in a cylindrical shape (A2B2) is a treatment that produces the best quality briquettes with a moisture content value of 2.64% bb.ash content was 6.60%, combustion rate was 73.16 (gr / minute) and volatile matter was 13.86%.
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