PLTD Telaga menggunakan mesin MAK 8M453 yang terdiri dari 10 unit untuk membangkitkan daya. Pengoprasian pada unit-unit tersebut bergantung pada beban yang dibutuhkan oleh konsumen terutama pada waktu beban puncak, mengingat PLTD Telaga bukan merupakan sumber suplai listrik utama di Gorontalo. Mesin MAK 8M453 yang berjumlah 10 unit tersebut hanya 4 unit yang aktif berproduksi yaitu unit 3, 4,5 dan 6 sisanya dalam keadaan rusak. Tujuan penelitian ini Mengetahui banyaknya konsumsi bahan bakar untuk motor diesel penggerak generator listrik merek MAK 8M453 unit 5 di PLTD Telaga berdasarkan teori perbandingan udara dan bahan bakar sesuai dengan temperatur udara (ruangan) setempat dan akan dibandingkan dengan konsumsi bahan bakar yang ada di lapangan. Hasil penelitian satu jam perbandingan udara dan bahan bakar berdasarkan teori adalah 201,86 Kg/jam atau sama dengan 228,623 Liter/jam. Sedangkan konsumsi bahan bakar pada kenyataanya yang digunakan pada mesin MAK 8M453 unit 5 PLTD Telaga adalah dalam satu jam produksi yaitu sebesar 421,478 L/jam dan perbandingan anatara konsumsi bahan bakar secara teoritis dan lapangan yaitu sebesar 1 : 1,8
The purpose of this study is to develop and determine the feasibility of animation-based interactive learning media on the vehicle body electrical system. The research method used is Research and Development (R&D) using the Four D (4D) Define, Design, Development, and Dissemination model. The data analysis technique used is quantitative and qualitative analysis techniques. The location of this research is at Gorontalo State University and the research subjects are students who have completed or are currently taking Automotive Electrical courses. The data collection technique is a questionnaire to test the feasibility of the media. The results of this study produced a product in the form of interactive learning media based on animation on the body's electrical system. The designed learning media is declared valid because it has been tested for its validity by media experts at 81.7%, material experts at 86.6%, and students at 90%. Based on the data above, it can be concluded that the media developed is very feasible and can be used as a learning tool in the Mechanical Engineering Education Study Program, State University of Gorontalo.
Natural fiber as a sound-absorbing biocompisite material is believed to not only reduce noise pollution but also to absorb heat. There are many underutilized coconut husks, which so far the use of coconut husks is only conventional. The focus of this research is to find the right solution in the use of coconut fiber as well as composite material engineering for technological purposes. The research method will use pure experiments using controlled specimens in the mechanical Engineering laboratory of ITB, including mechanicals tests, soundproofing. The results of he tensile test are the tensile strength of the largest coconut fiber composite fiber is found in the fiber volume fraction of 25% with a value of 59.072 Mpa, followed by 20% fiber fraction with a value of 59.025 Mpa, 15% fiber fraction with a value of 56.736 Mpa, fiber fraction 10% with a value of 56.807 Mpa, 5% fiber fraction with a value 53.736. and for he results of the soundproof test with frequency of 250 Hz – 2000 Hz at 5% fiber fraction, it has an absorption coefficient value of 0,03, 10% fiber fraction, has an absorption coefficient value of 0.18, 15% fiber fraction has an absorption coefficient value of 0.18. 0.18, the fiber fraction of 20 has an absorption coefficient of 0.22, the fiber fraction of 25% has an absorption coefficient of 0.28.
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