Studi Numerical Pengaruh Sudut Tilting Negatif Tangential Burner Dengan Co-firing Biomassa Sawdust Terhadap Evaluasi Fouling dan Slagging Pada Boiler 300 MW

Afif, Achmad (2026) Studi Numerical Pengaruh Sudut Tilting Negatif Tangential Burner Dengan Co-firing Biomassa Sawdust Terhadap Evaluasi Fouling dan Slagging Pada Boiler 300 MW. Other thesis, Institut Teknologi Sepuluh Nopember.

Text 5007211169-Undergraduate_Thesis.pdf - Accepted Version Restricted to Repository staff only Download (10MB) | Request a copy

Abstract

Penelitian ini menganalisis pengaruh sudut tilting tangential burner terhadap karakteristik pembakaran pada boiler PLTU 300 MW dengan skema co-firing 90% batubara dan 10% biomassa sawdust menggunakan simulasi Computational Fluid Dynamics (CFD). Variasi sudut tilt hanya diterapkan pada burner elevasi D dan E, sedangkan elevasi A, B, dan C dipertahankan horizontal, untuk mengevaluasi perubahan distribusi temperatur, penyerapan panas, emisi gas buang, serta potensi fouling dan slagging. Hasil simulasi menunjukkan bahwa sudut tilt berpengaruh signifikan terhadap distribusi temperatur dan pelepasan panas di dalam furnace. Pada tilt 0°, pembakaran berlangsung lebih stabil dengan distribusi temperatur yang merata, nilai furnace exit gas temperature (FEGT) yang lebih tinggi, serta penyerapan panas yang optimal. Sebaliknya, pada sudut tilt negatif yang lebih besar (−10° dan −15°), terjadi pergeseran zona pembakaran ke arah atas yang mengindikasikan delay combustion, disertai peningkatan emisi CO dan potensi fouling serta slagging. Dengan demikian, tilt 0° pada elevasi D dan E merupakan kondisi operasi paling optimal untuk skema co-firing 10% sawdust pada boiler 300 MW. karena mampu menghasilkan pembakaran yang stabil, menekan potensi delay combustion, serta memberikan kinerja termal dan karakteristik emisi yang lebih baik
==========================================================================================================================
This study analyzes the effect of tangential burner tilting angles on combustion characteristics in a 300 MW coal-fired power plant boiler operating under a co-firing scheme of 90% coal and 10% sawdust biomass using Computational Fluid Dynamics (CFD) simulation. The variation of the tilting angle is applied only to the burners at elevations D and E, while the burners at elevations A, B, and C are maintained in a horizontal position, to evaluate changes in temperature distribution, heat absorption, flue gas emissions, and the potential for fouling and slagging. The simulation results indicate that the tilting angle significantly influences temperature distribution and heat release within the furnace. At a 0° tilt, combustion occurs more stably, characterized by a more uniform temperature distribution, higher furnace exit gas temperature (FEGT), and optimal heat absorption. In contrast, larger negative tilting angles (−10° and −15°) cause an upward shift of the combustion zone, indicating the occurrence of delayed combustion, accompanied by increased CO emissions and a higher potential for fouling and slagging. Therefore, a 0° tilting angle at elevations D and E represents the most optimal operating condition for a 10% sawdust co-firing scheme in a 300 MW boiler, as it ensures stable combustion, suppresses delayed combustion, and provides better thermal performance and emission characteristics.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	ANSYS Fluent, CFD, co-firing, tilting burner, boiler 300 MW.
Subjects:	Q Science > QC Physics > QC320 Heat transfer
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Mechanical Engineering > 21201-(S1) Undergraduate Thesis
Depositing User:	Achmad Afif
Date Deposited:	03 Feb 2026 08:49
Last Modified:	03 Feb 2026 08:49
URI:	http://repository.its.ac.id/id/eprint/131858

Actions (login required)

View Item