Alie, Asgar R. (2019) Meningkatkan Keandalan Auxiliary Diesel Engine Plant Dari Pengaruh Stabilitas Biodiesel Di PT. Vale Indonesia Tbk, Sorowako. Masters thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Keprihatinan lingkungan yang serius mengenai penggunaan bahan bakar berbasis fosil telah meningkatkan kesadaran tentang perlunya mencari alternatif bahan bakar bersih dan terbarukan. Biodiesel dianggap sebagai pengganti diesel yang bersih, tidak beracun, namun biodegradable, yang diproduksi melalui transesterifikasi trigliserida dengan alkohol dengan adanya katalis yang tepat. Namun sifat merugikan utama biodiesel – yaitu penyerapan air, korosi, dan viskositas tinggi – terutama timbul karena efek dari lamanya masa penyimpanan. Perubahan karasteristik fisika karena oksidasi dan kehadiran kontaminan dalam biodiesel tidak hanya secara signifikan mempengaruhi kinerja mesin tetapi juga mempersulit penanganan dan penyimpanannya.
Oleh karena itu, menjaga stabilitas saat penanganan dan penyimpanan biodiesel merupakan langkah penting selama penggunaan. Untuk mengatasi masalah ini, beberapa solusi dilakukan antara lain dengan melakukan metode sirkulasi dan penyaringan. Penyaringan dilakukan untuk menjaga agar Fuel Cleanliness tetap terjaga pada level 18/16/13, sesuai standar ISO 4406. Sementara sistim sirkulasi berfungsi agar stabilitas biodiesel yang disimpan di dalam tangki terlalu lama dapat tetap terjaga.
Penelitian ini sebagai improvement metode penyimpanan guna mendukung operasional PT. Vale Indonesia Tbk. yang handal dan tersedia, yaitu mencapai Physical Availability diatas 85%.
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Serious environmental concerns regarding the use of fossil-based fuels have raised awareness about the need to find alternative clean and renewable fuels. Biodiesel is considered as a diesel substitute for clean, non-toxic but biodegradabel, produced through transesterification of triglycerides with alcohol in the presence of the right catalyst. But the main detrimental properties of biodiesel - namely water absorption, corrosion and high viscosity - mainly arise due to the effect of the length of the storage period. The changes in physical chatacteristics due to oxidation and the presence of contaminants in biodiesel not only significantly affects engine performance but also complicates handling and storage. Therefore, maintain stability when handling and storage biodiesel is an important step during use. To overcome this problem, several solutions are carried out, among others, by doing Circulating and Filtering Methods. Filtering is done to keep Fuel Cleanliness maintained at the level of 18/16/13, according to ISO 4406 standards. While the Circulating system functions so that the stability of biodiesel stored in the tank for too long can be maintained. This study as an improvement in storage methods to support the operations of PT. Vale Indonesia Tbk. reliable and available, which reaches Physical Availability above 85%.
| Item Type: | Thesis (Masters) |
|---|---|
| Additional Information: | RTF 621.436 8 Ali m-1 2019 |
| Uncontrolled Keywords: | Biodiesel, fuel system, oxidation stability, fuel cleanliness, filtering and circulating system, karasteristik fisika, Physical Availability |
| Subjects: | T Technology > TJ Mechanical engineering and machinery T Technology > TP Chemical technology > TP359.B46 Biodiesel fuels. |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Physics Engineering > 30101-(S2) Master Thesis |
| Depositing User: | Asgar R. Alie |
| Date Deposited: | 14 Apr 2022 02:58 |
| Last Modified: | 14 Apr 2022 02:58 |
| URI: | http://repository.its.ac.id/id/eprint/62373 |
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