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Abstrak Biogas atau sering pula disebut gas bio merupakan gas yang timbul jika bahan-bahan seperti kotoranhewan, kotoran manusia, ataupun sampah, direndam di dalam air dan disimpan di tempat tertutup atauanaerob (tanpa oksigen dari udara). Reaktor biogas merupakan salah satu solusi teknologi energi untuk mengatasi kesulitan masyarakat akibat kenaikan harga BBM, teknologi ini sederhana dan aplikatif. Pembuatan prototipe pembangkit energi terbarukan (renewable) ini berupa reaktor biogas skala rumahtangga untuk pemenuhan energi khususnya di perdesaan dalam hal ini usaha peternakan di Gunung Pati, Semarang. Langkah-langkah yang dilakukan untuk membuat teknologi biogas ini meliputi studi pustaka, perancangan, pembuatan, dan pengujian untuk mengetahui hasil dan tujuan yang diharapkandari alat tersebut. Setelah pengujian didapatkan bahwa dengan penambahan EM-4 (Effective Microorganisme 4) sebagai starter, gas bio yang dihasilkan setelah proses fermentasi didapatkan padahari ke-14 dibanding tanpa menggunakan EM-4 dapat mencapai 30 hari. Dari sisi teknoekonomi,bahwa BEP akan tercapai setelah mencapai 569 liter per tahun dan PBP tercapai pada 9 1/3 bulan jikamenggunakan bahan bakar minyak tanah. Dan bila menggunakan bahan bakar LPG 3 kg, BEP akantercapai pada 350 tabung dan PBP tercapai pada 4 tahun 10 bulan. Dan setelah waktu penggunaan (BEP dan PBP) tersebut terlewati, keluarga tersebut dapat menghemat biaya bahan bakar sebesar Rp 5.840.000,00/tahun jika menggunakan bahan bakar minyak tanah. Serta, bila menggunakanbahan bakar LPG 3 kg, setelah melewati BEP dan PBP akan menghemat biaya untuk bahan bakar sebesar Rp 936.000,00/tahun. Kata Kunci : Floating Drum, Reaktor Biogas, Starter EM-4
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5/14/2018 1Artikel Biogas2_Eksergi 2010 YUSUP DH - slidepdf.com
http://slidepdf.com/reader/full/1artikel-biogas2eksergi-2010-yusup-dh 1/5
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5/14/2018 1Artikel Biogas2_Eksergi 2010 YUSUP DH - slidepdf.com
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5/14/2018 1Artikel Biogas2_Eksergi 2010 YUSUP DH - slidepdf.com
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