Putra, Dicka Tama (2025) Analisis Keandalan dan Perhitungan Sisa Umur Pakai Pipa Minyak dan Gas Setelah Masa Operasi untuk Pipa Air Dingin pada Sistem Konversi Energi Panas Laut. Other thesis, Institut Teknologi Sepuluh Nopember.
![[thumbnail of 5020201022-Undergraduate_Thesis.pdf]](http://repository.its.ac.id/style/images/fileicons/text.png) |
Text
5020201022-Undergraduate_Thesis.pdf - Accepted Version Restricted to Repository staff only until 1 April 2027. Download (5MB) | Request a copy |
Abstract
Jaringan pipa bawah laut merupakan infrastruktur dalam industri energi global, namun banyak platform yang telah melampaui umur desainnya. Penelitian ini meninjau integritas platform pipa dengan pendekatan korosi untuk menghitung umur sisa pakai pipa setelah operasi dan menganalisis keandalan pipa yang digunakan kembali sebagai pipa air dingin pada sistem konversi energi panas laut. Metode penelitian melibatkan perhitungan laju korosi dan analisis keandalan menggunakan simulasi Monte Carlo. Hasil penelitian nilai laju korosi untuk pipa gas adalah 0,15 mm/tahun dan pipa minyak adalah 0,01 mm/tahun. Nilai tebal estimasi pipa tahun 2027 untuk pipa gas berkisar 9,19 - 13,92 mm dan pipa minyak rentang nilai 12,46 - 17,26 mm. Umur pakai pipa gas berkisar 0,93 - 44,12 tahun, sementara pipa minyak memiliki rentang umur hingga 880 tahun. Simulasi Monte Carlo dengan 30000 percobaan menunjukkan bahwa nilai keandalan pipa untuk konversi masa pakai lebih dari >20 tahun pada pipa gas dan pipa minyak kurang dari 0,9. Berdasarkan hasil estimasi umur pakai pipa yang andal untuk konversi pipa air dingin dari penggunaan pipa gas adalah 9 tahun dan untuk pipa minyak adalah 15 tahun.
=======================================================================================================================================
Subsea pipelines are infrastructure in the global energy industry, but many platforms have exceeded their design life. This research reviewed the integrity of the pipeline platform with a corrosion approach to calculate the remaining service life of the pipeline after operation and analyses the reliability of the pipeline reused as a chilled water pipeline in a marine thermal energy conversion system. The research method involves corrosion rate calculation and reliability analysis using Monte Carlo simulation. The results showed that the corrosion rate for the gas pipeline was 0.15 mm/year, and the oil pipeline was 0.01 mm/year. The estimated pipe thickness value in 2027 for gas pipes ranges from 9.19 - 13.92 mm and oil pipes range from 12.46 - 17.26 mm. The lifetime of gas pipelines ranges from 0.93 - 44.12 years, while oil pipelines have a lifetime range of up to 880 years. Monte Carlo simulation with 30000 trials shows that the pipeline reliability value for conversion of service life of more than >20 years in gas pipelines and oil pipelines is less than 0.9. Based on the results, the estimated reliable pipeline service life for cold water pipeline conversion from gas pipeline use is 9 years and for oil pipeline is 15 years.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Sisa umur pakai, pipa air dingin, keandalan, korosi, pipa, Remaining service life, cold water pipe, reliability, corrosion, pipeline. |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) > TA169 Reliability (Engineering) T Technology > TC Hydraulic engineering. Ocean engineering > TC1665 Offshore structures--Materials. T Technology > TJ Mechanical engineering and machinery > TJ808 Renewable energy sources. Energy harvesting. T Technology > TJ Mechanical engineering and machinery > TJ930 Pipelines (General). Underwater pipelines. T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1073 Ocean thermal energy conversion |
| Divisions: | Faculty of Marine Technology (MARTECH) > Ocean Engineering > 38201-(S1) Undergraduate Thesis |
| Depositing User: | Dicka Tama Putra |
| Date Deposited: | 27 Jan 2025 09:37 |
| Last Modified: | 27 Jan 2025 09:37 |
| URI: | http://repository.its.ac.id/id/eprint/116974 |
Actions (login required)
 |
View Item |