Pengaruh Penggunaan Frekuensi Listrik Terhadap Performa Generator HHO Dan Unjuk Kerja Engine Honda Kharisma 125CC
Submission Date: 2013-08-19 17:21:43
Accepted Date: 2013-08-27 09:37:05
Abstract
Energi yang dihasilkan oleh engine merupakan hasil dari proses pembakaran campuran bahan bakar dengan udara (oksigen). Secara praktis pembakaran menghasilkan gas yang sangat berbahaya bagi kesehatan. Salah satu perkembangan teknologi adalah dengan brown gas, atau sering disebut Generator HHO, dimana alat ini akan menghasilkan gas HHO (2 unsur gas hydrogen dan 1 unsur gas oksigen) dari proses elektrolisa air murni yang di hubungkan dengan arus listrik. Pengujian dilakukan secara eksperimental dengan menggunakan Generator HHO pada engine Honda Kharisma berkapasitas 125cc. Generator HHO tersebut menggunakan Elektroda jenis pipa Stainless steel AISI 316L dengan ukuran Ø21mm x 101mm, Ø34mm x 101mm, Ø48mm x 101mm dan Ø61mm x 101mm dengan tebal 3mm, larutan elektrolit 2liter aquades dan 1,4 KOH. Variasi yang diberikan pada generator HHO adalah besar frekuensi listriknya. Untuk pengujian, perubahan kecepatan dilakukan dengan full open throttle menggunakan chasis water brake dynamometer. Pengujian dilakukan pada putaran engine dengan kelipatan 500 rpm, dimulai dari 3500 rpm sampai dengan 8500 rpm. Hasil yang didapatkan dari penelitian ini adalah frekuensi untuk generator dengan effisiensi thermal terbaik adalah pada 10Hz sebesar 20,06%. Dengan daya generator 118,74 Watt, debit 13,13 L/jam, kenaikan temperature 0.7°C/menit, torsi maksimal pada engine 27.09 Nm, daya efektif 6114,651 Watt, bmep 860,627 Pa, SFC 9.608E-08 kg/watt.s, effisiensi thermal engine 23,22% serta pengurangan emisi CO 1,17% dan HC 83ppm.
Keywords
Elektrolisa air murni; SS 316; generator HHO; frekuensi listrik; larutan elektrolit KOH; unjuk kerja engine
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