Di tengah maraknya isu keterbatasan sumber daya alam, perkembangan teknologi dan perindustrian serta pertumbuhan penduduk yang pesat membuat kebutuhan akan listrik terus meningkat, termasuk nelayan Krueng Aceh yang melakukan usaha penangkapan ikandengan sistemlight fishing. Peneliti akan melakukan penelitian terapan mengenai Generator listrik memanfaatkan efek Flywheel, dengan tenaga baterai 36/48 Volt, yang dihubungkan dengan motor listrik DC yang menggerahkan sistem dengan bantuan sabuk penghubung(V-belt),memutarkan alternator kapasitas 3 kW hingga menghasilkan arus Alternating Curent (AC).Tujuan penelitian ini adalah membuat rancang bangun dan melakukan pengujian unjuk kerja Generator alternatif bertenaga baterai dan fly wheel kapasitas 3 kW, untuk kapal 3 GT nelayan Krueng Aceh. Metode yang akan digunakan adalah eksperimen membuat rancangan detail, mengkonstruksi dan melakukan uji unjuk kerja sesuaistandar Nasional Indonesia (SNI).Hasil yang dicapai terwujudnya rancang bangun generator alternatif bertenaga baterai dan flywheel, arus listrik yang dihasilkan arus bolak balik (AC) dengan tegangan220 volt, frequensi 49-50 Hz putaran 1449 RPM pada beban 100 watt. Sedangkan untuk beban 200 watt tegangan menjadi 200 Volt, frequensi 40-45 Hz dan putaran 1400 RPM. Selanjutnya dengan beban 300 watt tegangan menurun menjadi 110 volt, frequensi 40-42 Hz dan putaran menjadi 1000 RPM.durasi nyala hanya bertahan 3-5 menit.

The design of the smoking device made in this study is 120 cm long, 60 cm in diameter, the material used is iron plate (Fe) with a thickness of 2 mm, the smoking rack is made of stainless steel stirrups with a size of 8 mm with a capacity of 15 kg of fish that can be accommodated smoked and the fumigation device is portable. LxPxT (40x40X50) cm fuel furnace equipped with a 2" (inch) exhaust fan to push hot steam from the combustion furnace into the smoking chamber, 45 cm high cyclone, 11 cm diameter, liquid smoke distillation pipe using 1 inch Stainless steel. Roller module as a rack player automatically every 30 minutes, 2 minutes of rotation is connected to an electric motor HP (1400 RPM) 300 watts, 220 Volts, Gear-Box as a rotation reducer with a rotation ratio of 1:50 rpm. In testing the instrument, the parameters observed were the temperature of the smoking furnace, the temperature of the cyclone separator, the temperature of the smoking room, and the smoking time. The heat used to raise the temperature is 2.898 kj/kg, the heat used to evaporate the product water (fish), is 33.8904 kj/kg, the heat used to raise the product temperature (fish) is 21.942 kj/kg °C, the total energy consumed is used by the product is 58,704 kj/kg. I.Nurmansah et. al.

Bio-additives are elements derived from plants that are utilized as additives to improve fuel quality. Lemongrass fragrant oil is one of the types used as bio-additives that are volatile and soluble into fuels. The purpose of using this bio-additive is to improve the performance of the machine, but the resulting emissions must be in permissible regulations. This research was conducted by experimental methods, some of the tested samples consisted of gasoline (Pertalite), then the development was done by adding the element of lemongrass aromatic bio-additive on the fuel with a ratio of 1.5:1000 ml, 2.0:1000 ml, 2.5:1000 ml, 3.0:1000 ml, and 3.5:1000 ml. The sample test was carried out to measure engine performance, exhaust emissions, using Sportdevice Dyno and Emission Tester. Also, fuel consumption testing is carried out to determine the efficiency of fuel consumption. The results of this study the use of a fragrant lemongrass bio-additive can improve the performance of the motorcycle, maximum power increased by 3.11% at a ratio of 3.0:1000 ml and optimum torque are achieved at 2.03% at a ratio of 2.0:1000 ml. Then the result of exhaust emission measurement of HC and CO elements arising from the use of lemongrass bio-additives is still environmentally friendly In addition to the testing, fuel consumption measurement is also done by generating a savings of 20.93%, mileage 69.9 Km/L ratio using a ratio of 3.5:1000 ml.

Keterbatasan pemerintah dalam memenuhi perluasan jaringan listrik sampai ke daerah terpencil menjadikan pembangkit listrik tenaga air sebagai solusi alternatif. Untuk memenuhi kebutuhan tersebut telah dilakukan perancangan, pembuatan dan pemasangan Turbin Air Pembangkit Listrik Tenaga Mikrohidro (PLTMH) di Desa Palasari, Kabupaten Bogor. Turbin dirancang dengan spesifikasi mampu membangkitkan daya listrik sebesar 2.700 Watt pada putaran turbin (n) = 214 rpm, dengan tinggi efektif air (He) = 2 m dan debit aliran air (Q) = 0,2 m3/s. Untuk mengetahui kinerja turbin telah dilakukan pengujian kinerja di lokasi pemasangan. Kinerja yang dimaksud dalam kegiatan ini adalah efisiensi turbin(ƞt), yaitu perbandingan antara output berupa energi mekanik turbin dan input berupa energi potensial dan kinetik zat cair yang dalam hal ini air. Pengujian dilakukan dengan mengukur debit air dan pengukuran daya turbin, kemudian dilakukan perhitungan efisiensi turbin. Pengukuran debit aliran dilakukankan dengan teknik bendungan. Daya turbin (Nt) ditentukan dengan melakukan pengukuran torsi (T) dan putaran (n) pada poros. Variasi debit air diperoleh dengan mengatur bukaan pintu pada saluran msuk. Hasil pengujian menunjukkan bahwa pada kondisi Head (H)= 2 m dan pembukaan pintu saluran masuk 100% tercatat debit aliran air (Q) = 0,20 m3/s daya turbin (Nt) = 2.856,14 Watt pada putaran (n) =1356,97 rpm, diperoleh efisiensi turbin (ηt) = 72,95%.

An effort to achieve SDGs 12# responsible for consumption and production is by optimizing the application of natural recycled materials, such as bamboo, in the automotive industry. Bamboo is a potential insulating material because it has low thermal conductivity. This study used Gigantochloa Atroviolacea as a thermal insulator projected as a car roof. Experiments were performed to identify the effective thermal conductivity. There were two shapes tested: slab and box. The first specimen is a laminated bamboo slab, and the second is a combined slab of laminated bamboo, glass wool, and aluminum foil. Based on the heat transfer calculation, the effective thermal conductivity is 0.21 W/mK and 0.14 W/mK for the laminated bamboo slab and combined slab, respectively. The thermal flow characteristic was analyzed in two box models with different material arrangements. The first box is laminated bamboo and fiber, and the second is laminated bamboo and glass wool. The results show that the first box can insulate heat better than the second. It was concluded that laminated bamboo and bamboo fiber can be used as a substitute for glass wool material. The bending test of laminated bamboo with three different layers was performed according to ASTM D 790. The maximum load was 616 kg for five layers. The bending test showed that laminated bamboo is insufficient as a car roof. Steel plates are still necessary to comply with the requirements of the FMVSS 216 standard.