Fahmi, Lingga Choiruman (2021) Pemodelan Kebakaran Propane Accumulator LNG Plant di PT. X. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Pencairan adalah salah satu proses utama dalam industri LNG. Proses pencairan gas alam dilakukan dengan cara mendinginkan gas alam sampai mencapai -162oC sehingga rasio volume liquid yang dihasilkan menjadi 600 kali lipat lebih kecil saat keadaan STP. Hal ini dilakukan untuk optimasi khususnya pada saat proses transportasi. Sistem refrigrasi pada PT. X menggunakan propana sebagai cairan pendingin. Tangki propane accumulator pada sistem refrigerasi berpotensi mengalami kegagalan berupa kebakaran. Pada penelitian ini, peneliti akan melakukan pemodelan kebakaran yang terjadi pada tangki propane accumulator di PT. X. Pemodelan dilakukan menggunakan software ALOHA untuk mengetahui radius zona radiasi dari kebakaran. terdapat tiga zona radiasi yang menjadi output dari pemodelan : zona merah (6.3 kW/m2), zona orange (4.7 kW/m2), dan zona kuning (1.5kW/m2). Kondisi kegagalan terjadi kebocoran sirkular dengan diameter kebocoran 1 cm s.d. 11 cm menyebabkan pelepasan fluida secara kontinyu dan konstan sehingga berpotensi terjadi kebakaran dengan skenario kegagalan jet fire. tujuan dari penelitian ini adalah untuk mengetahui pengaruh diameter kebocoran terhadap kebakaran serta mengetahui model zona radiasi saat terjadi kebakaran. Hasil dari pemodelan menunjukkan penambahan radius zona radiasi untuk setiap penambahan 1cm diameter kebocoran pada zona merah adalah sejauh 2.5 m ; zona orange sejauh 3.6 m ; dan zona kuning sejauh 8.5 m. . Zona radiasi tersempit adalah 10 m zona kuning, 10 m zona orange, dan 10 m
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ZonaLiquefaction is one of the main processes in LNG Industry. The natural gas liquefaction process is carried out by cooling the natural gas until it reaches -162oC so that the ratio of the resulting liquid volume becomes 600 times smaller at the STP state. This is done for optimization, especially during the transportation process. The refrigeration system at PT. X uses propane as the coolant. The propane accumulator tank in the refrigeration system has the potential to fail in the form of fire. In this study, researchers will model the fire that occurred in the propane accumulator tank at PT. X. The modeling is done using ALOHA software to determine the radius of the radiation zone from the fire. There are three radiation zones that are the output of the modeling: red zone (6.3 kW/m2), orange zone (4.7 kW/m2), and yellow zone (1.5kW/m2). The failure condition is a circular leak with a leak diameter of 1 cm to 11 cm causing a continuous and constant release of fluid so that a fire has the potential to occur with a jet fire failure scenario. The purpose of this study was to determine the effect of the diameter of the leak on the fire and to know the radiation zone model during a fire. The results of the modeling show that the addition of the radiation zone radius for every 1cm addition of the leak diameter in the red zone is 2.5 m; orange zone as far as 3.6 m ; and the yellow zone as far as 8.5 m. . The narrowest radiation zone is 10 m yellow zone, 10 m orange zone, and 10 m red zone. The widest radiation zone is failure with a leak diameter of 11 cm with a red radiation zone of 35 m, an orange zone of 46 m, and a yellow zone of 95 m. merah. Zona radiasi terluas adalah kegagalan dengan diameter kebocoran 11 cm dengan zona radiasi merah 35 m , zona orange 46 m, dan zona kuning 95 m.
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| Item Type: | Thesis (Undergraduate) |
|---|---|
| Uncontrolled Keywords: | Propane, Leakage, Fire, Radiation Zone, Propana, Kebocoran, Kebakaran, Zona Radiasi |
| Subjects: | T Technology > TC Hydraulic engineering. Ocean engineering |
| Divisions: | Faculty of Marine Technology (MARTECH) > Ocean Engineering > 38201-(S1) Undergraduate Thesis |
| Depositing User: | Lingga Choiruman Fahmi |
| Date Deposited: | 17 Aug 2021 20:50 |
| Last Modified: | 17 Aug 2021 20:50 |
| URI: | http://repository.its.ac.id/id/eprint/87020 |
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