Prayitno, Bima Sakti (2018) Analisa Model Dispersi Metan (CH4) saat Emergency Hydrocarbon Release pada Jalur Distribusi Gas PT. Chevron Pacific Indonesia Dengan Program ALOHA. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Pipa distribusi pada perusahaan minyak dan gas kebanyakan berada di antar kota sehingga tak jarang pipa tersebut berdekatan dengan pemukiman warga. Kecelakaan pada pipa distribusi bisa berupa ledakan yang disebabkan dari produksi gas yang besar. Salah satu kandungan pada pipa distribusi adalah hidrokarbon. Emergency hydrocarbon release merupakan kondisi dimana terjadinya produksi gas hidrokarbon berada diatas rata-rata sehingga memiliki peluang yang besar untuk dalam membahayakan keselamatan manusia. Penelitian ini menggunakan Program ALOHA 5,4.7 dalam permodelan dispersi yang dihasilkan saat kecelakaan. Pemilihan gas metan dikarenakan gas metan merupakan komposisi yang paling dominan pada gas alam. Program ALOHA menggunakan metode Gauss yang telah dimodifikasi sehingga cocok digunakan dalam metode ini. Selanjutnya hasil dari permodelan akan dianalisa berdasarkan standar baku mutu. Hasil penelitian berupa manajemen risiko yang dapat dilaksanakan apabila terjadi kecelakaan. Manajemen risiko dibuat berdasarkan model dispersi saat terjadinya kecelakaan, sehingga didapatkan area-area yang terkena bahaya dari hidrokarbon. Volume emergency hydrocarbon release yang didapat adalah sebesar 249,508 m3. Sedangkan jarak terjauh yang dapat terjadi adalah sejauh 0,29 km pada gas plant dam 6,6 km pada jalur pipa. Manajemen risiko dan standar operasional prosedur dapat dilihat di lampiran. ===============================================================================================================================
Distribution line in oil and gas companies are mostly located between cities, it is not uncommon for these pipes are located in residential area. It certainly causes a wide impact when an accident occurs. The accident can be an explosion from big amount that gas produced. One of the biggest content in distribution line is hydrocarbon. Pollution from hydrocarbon is dangerous in liquid and gas form. Analysis of hydrocarbon dispersion in emergency hydrocarbon release situation is important. Emergency hydrocarbon release is a condition that the big amount of gas is produced that have big risk to endager people. This research use ALOHA 5.4.7 program to modelling the dispersion of gas that produced in an accident. Methan gas is choosen because it is the biggest content of natural gas. ALOHA program use the modification of Gauss formula that fits to use in this research. After that the model result of ALOHA will be analyzed based on quality standard from regulation. The result of this research is risk management that applicable to do when accident happen. Risk management is created based on dispersion model when accident happen, so it can be deterrmined the area that impact from hydrcarbon cause. The volume of emergency hydrocarbon release is 249,508 m3. The most far radius of dispersion that can occur is about 0,29 km for gas plant and 6,6 km fot pipeline. Risk management and standard opreational procedures can be seen in appendix.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | ALOHA 5.4.7, Dispersi, Emergency Hydrocarbon Release, Hidrokarbon, Pipa Distribusi, Manajemen Risiko |
| Subjects: | T Technology > TD Environmental technology. Sanitary engineering T Technology > TD Environmental technology. Sanitary engineering > TD883.5 Air--Pollution |
| Divisions: | Faculty of Civil Engineering and Planning > Environment Engineering > 25201-(S1) Undergraduate Thesis |
| Depositing User: | Bima Sakti Prayitno |
| Date Deposited: | 02 Oct 2024 01:24 |
| Last Modified: | 02 Oct 2024 01:24 |
| URI: | http://repository.its.ac.id/id/eprint/53473 |
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