Wirayoga, Wiesnu Ardyta (2022) Studi Numerik Pengaruh Coal Blending Mrc Dan Lrc Terhadap Karakteristik Pembakaran Boiler Tangensial Dengan Variasi Leveling Batubara Dan Konfigurasi Injeksi Aliran Udara Primer Ke Ruang Bakar. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Metode in furnace coal blending adalah metode pencampuran dua jenis batubara antara Medium Rank Coal (MRC) dan Low Rank Coal (LRC) untuk mengoptimalkan pembakaran. Latar belakang penelitian adalah kendala supply batubara jenis MRC pada PLTU Pangkalan Susu (4 x 200 MW) dan optimalisasi terhadap biaya pokok produksi dengan pemakaian jenis LRC, sehingga penelitian dilakukan untuk menganalisa pengaruh variasi leveling dengan komposisi batubara 75% LRC - 25% MRC terhadap kondisi pembakaran yang optimal. Metode konfigurasi leveling dilakukan pada burner A-D (4 level dari total 5 level burner). Validasi simulasi diambil dari data Performance Test pada Bulan April 2021 Boiler Unit 1 (200 MW - MCR). Simulasi menggunakan Ansys Fluent dan output parameter untuk dianalisa yaitu distribusi temperature, kecepatan, & fraksi massa gas buang (NOx & CO2). Setelah didapati hasil yang optimal, selanjutnya dilakukan analisa pengaturan aliran udara PA pada nilai 62 t/h, 68 t//h, dan 77 t/h. Hasil simulasi validasi diperoleh nilai error tertinggi pada 7,97%, selanjutnya pada konfigurasi leveling batubara dari A-D menunjukkan penempatan batubara MRC di elevasi C memiliki distribusi temperature di area ruang bakar & FEGT yang optimal begitu juga distribusi CO2. Pengaturan variasi aliran udara PA Combustion menggunakan data parameter injeksi batubara di elevasi C menghasilkan kondisi optimal pada aliran udara 68 t/h dibandingkan variasi 62 t/h & 77 t/h, sehingga pola operasi penggunaan batubara dengan minimum MRC (25%) dapat dilakukan secara berlanjut pada injeksi di level C dengan konfigurasi pembukaan aliran udara 68 t/h.
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The in furnace coal blending method is a method of mixing two types of coal between Medium Rank Coal (MRC) and Low Rank Coal (LRC) to optimize combustion. The background of the study was the constraints on the supply of MRC type coal at the Pangkalan Susu coal power plant (4 x 200 MW) and optimization of the cost of goods produced with the use of LRC type, so the study was conducted to analyze the effect of leveling variations with coal composition of 75% LRC - 25% MRC on optimal combustion conditions. The leveling configuration method is carried out on the A-D burner (4 levels out of a total of 5 burner levels). Simulation validation was taken from Performance Test data in April 2021 Boiler Unit 1 (200 MW - MCR). The simulation uses Ansys Fluent and output parameters to be analyzed, namely the distribution of temperature, speed, & mass fraction of exhaust gases (NOx & CO2). After the optimal results were found, an analysis of the PA air flow regulation was then carried out at values of 62 t / h, 68 t / / h, and 77 t / h. The validation simulation results obtained the highest error value at 7.97%, then in the coal leveling configuration from A-D showed that the placement of MRC coal at elevation C had a temperature distribution in the combustion chamber area & FEGT that was optimal as well as the distribution of CO2. The regulation of PA Combustion air flow variation using coal injection parameter data at elevation C results in optimal conditions at air flow of 68 t /h compared to variations of 62 t / h & 77 t / h, so that the operating pattern of coal use with a minimum MRC (25%) can be carried out continuously at injection at level C with an air flow opening configuration of 68 t / h.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RTM 621.183 Wir s-1 2022 |
| Uncontrolled Keywords: | PLTU Pangkalan Susu, Boiler PC Tangential, In Furnace Coal blending, Leveling Batubara, Primary Air, Pangkalan Susu Coal Fired Power Plant, Boiler PC Tangential, In Furnace Coal blending, Coal Leveling, Primary Air, CFD |
| Subjects: | T Technology > TJ Mechanical engineering and machinery > TJ263.5 Boilers (general) |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Mechanical Engineering > 21101-(S2) Master Thesis |
| Depositing User: | Mr. Marsudiyana - |
| Date Deposited: | 13 Feb 2025 00:51 |
| Last Modified: | 13 Feb 2025 00:51 |
| URI: | http://repository.its.ac.id/id/eprint/118699 |
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