ABSTRAK

Almas Dhafin, Program Studi Teknik mesin, Fakultas Teknik Universitas Lambung Mangkurat, Januari 2026. Analisis Pengaruh Variasi Komposisi dan Perekat Briket Sekam Padi – Arang Purun Tikus (Eleocharis Dulcis) Terhadap Karakteristik Pembakaran, Pembimbing : Ir. Andy Nugraha, S.T., M.T.

Penelitian ini dilakukan untuk mencari pengaruh variasi komposisi dan perekat terhadap karakteristik pembakaran briket sekam padi – arang purun tikus. Penelitian ini spesimen pengujian briket diberi kode  A-B dengan komposisi bahan purun tikus : sekam padi kode spesimen A dengan perekat gliserol A1 100% : 0% ; A2 80% : 20% ; A3 70% : 30% ; A4 0% : 100% dan B dan spesimen dengan perekat tepung maizena B1 100 : 0% ; B2 80% : 20% B3 70% : 30% ; B4 0 : 100%. Pengambilan data penyalaan awal, laju pembakaran, dan temperatur dilakukan dengan alat Heater. Analisis data menggunakan software RStudio. Hasil dari hasil pengujian karakteristik pembakaran telah dilakukan didapatkan briket dengan penyalaan awal tercepat di spesimen A4 dan B4 (100% sekam padi) dengan waktu 90 detik (01:30 menit), laju pembakaran terendah di spesimen A2 (80% arang purun tikus : 20% sekam padi) yaitu 1,11 mg/s, temperatur tertinggi briket di spesimen A1 (100% arang purun tikus) dan A3 (70% arang purun tikus : 30% sekam padi) dengan temperatur 353 °C dan rata rata temperatur tertinggi di waktu menit ke-10 dari penyalaan awal briket.

Kata kunci: Briket biomassa, Sekam padi, Arang purun tikus (eleocharis dulcis), Karakteristik pembakaran, Variasi perekat.

 SUMMARY

Almas Dhafin, Mechanical Engineering Study Program, Faculty of Engineering, Lambung Mangkurat University, January 2026. Analysis of the Effect of Variations in Composition and Binder of Rice Husk Briquettes – Rat's Tail Sedge Charcoal (Eleocharis Dulcis) on Combustion Characteristics, Advisor: Ir. Andy Nugraha, S.T., M.T.

This study was conducted to determine the effect of variations in composition and binder on the combustion characteristics of rice husk briquettes – rat's tail sedge charcoal. In this study, the briquette test specimens were coded A-B with the composition of rat's tail grass: rice husks, specimen code A with glycerol adhesive A1 100%: 0%; A2 80%: 20%; A3 70%:30%; A4 0%:100% and B and specimens with cornstarch adhesive B1 100:0%; B2 80%:20% B3 70%:30%; B4 0:100%. Data collection on initial ignition, burning rate, and temperature was carried out using a heater. Data analysis was performed using RStudio software. The results of the combustion characteristic testing showed that the briquettes with the fastest initial ignition were specimens A4 and B4 (100% rice husk) with a time of 90 seconds (01:30 minutes), the lowest combustion rate was in specimen A2 (80% rat charcoal: 20% rice husk) at 1.11 mg/s, the highest briquette temperature in specimens A1 (100% rat charcoal) and A3 (70% rat charcoal: 30% rice husks) with a temperature of 353 °C, and the average highest temperature at the 10th minute of initial briquette ignition.

Keywords: Biomass briquettes, Rice husks, Eleocharis dulcis charcoal, Combustion characteristics, Binder variations.