Electronic Theses and Dissertation

Limbah ban merupakan limbah anorganik yang sangat sulit terdegradasi secara alami oleh alam. Di Indonesia limbah ban bekas diperkirakan ada sekitar 11 juta ton per tahun dan akan terus meningkat pada setiap tahunnya. Hal ini akan menjadi masalah di masa depan. Untuk memecahkan permasalahan ini, peneliti melakukan penelitian tentang limbah ban bekas menjadi bahan bakar minyak. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh campuran bahan bakar minyak dari ban bekas dengan minyak solar terhadap kinerja motor bakar diesel. Penelitian ini terdiri dari dua tahapan, uji karakteristik bahan bakar minyak ban dan uji prestasi motor bakar diesel. Dari hasil pengujian laboratorium diperoleh karakteristik minyak ban bekas dengan nilai kalor 43.491 kj/kg, nilai viskositas 4,351 mm2/s, densitas 897 kg/m3 dan cetane Indek 78,9. Penelitian ini menggunakan campuran bahan bakar minyak solar dengan persen campuran minyak ban 30%, 40%, 50% dan diuji ke motor bakar diesel. Hasil uji prestasi motor bakar diesel menunjukkan bahwa jenis bahan bakar yang memiliki daya mesin tertinggi adalah (MB-50) sebesar 3,445 HP di putaran mesin 2100 RPM. Konsumsi bahan bakar spesifik terendah ada pada jenis campuran bahan bakar solar (MB-0) yaitu sebesar 0,273 kg/kWh pada putaran 1900, serta efisiensi termal tertinggi diperoleh campuran bahan bakar solar (MB-0) sebesar 30,48% pada putaran 1900.

Kata kunci: Minyak Ban , Solar, Prestasi Motor bakar Diesel

Waste tires are inorganic waste that is very difficult to degrade naturally by nature. In Indonesia, waste tires are estimated to be around 11 million tons per year and will continue to increase every year. This will be a problem in the future. To solve this problem, researchers conducted research on used tire waste into fuel oil. The purpose of this study is to determine the effect of a mixture of fuel oil from used tires with diesel oil on the performance of diesel fuel motors. This research consists of two stages, tire oil fuel characteristics test and diesel fuel motor performance test. From the results of laboratory testing, the characteristics of used tire oil were obtained with a heating value of 43,491 kj/kg, a viscosity value of 4.351 mm2/s, a density of 897 kg/m3 and a cetane index of 78.9. This research uses a mixture of diesel fuel oil with a percentage of tire oil mixture of 30%, 40%, 50% and tested on a diesel fuel motor. The results of the diesel fuel motor performance test show that the type of fuel that has the highest engine power is (MB-50) of 3.445 HP at 2100 RPM engine speed. The lowest specific fuel consumption is in the type of diesel fuel mixture (MB-0) which is 0.273 kg/kWh at 1900 revolutions, and the highest thermal efficiency is obtained by diesel fuel mixture (MB-0) of 30.48% at 1900 revolutions. Keywords: Tire Oil, Solar, Diesel Fuel Motor Performance