STUDI NUMERIK KARAKTERISTIK BOILER DENGAN VARIASI KOMPOSISI BATUBARA DAN BIOMASSA DI PLTU BERKAPASITAS 400 MW

Yultrianto, Hervian Qidam (2024) STUDI NUMERIK KARAKTERISTIK BOILER DENGAN VARIASI KOMPOSISI BATUBARA DAN BIOMASSA DI PLTU BERKAPASITAS 400 MW. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Beberapa program Energi Baru dan Terbarukan (EBT) yang dirancang PT PLN, salah satu programnya adalah penerapan Co-firing pada pembangkit listrik tenaga uap (PLTU) berbahan bakar batubara eksisting. Co-firing merupakan penambahan biomassa sebagai bahan bakar pengganti parsial ke dalam boiler PLTU batubara. Co-firing dijadikan sebagai salah satu green booster dalam program percepatan peningkatan penggunaan energy terbarukan. Demi mendukung program tersebut, PLTU PT X berencana mengganti bahan bakar primer yang awalnya batubara menjadi 100% biomassa Penelitian ini akan membahas mengenai pengaruh co-firing biomassa terhadap pembakaran pada boiler tipe pulverized coal PLTU PT X. Analisis numerik dilakukan pada Pulverized Coal (PC) Boiler PLTU PT X dengan menggunakan delapan (8) variasi yaitu 100% batubara, cofiring biomassa dengan persentase 5%, 10%, 15%, 20%, 25%, dan 30% serta 100% Biomassa. Sehingga untuk mengetahui distribusi temperatur, kecepatan dan daerah yang mengalami turbulensi pada boiler dilakukan pemodelan dengan menggunakan Computational Fluid Dynamic (CFD) menggunakan software ANSYS FLUENT. Hasil penelitian ini menunjukan dimana kondisi 100% batubara memiliki distribusi kontur temperatur yang paling tinggi kemudian menurun seiring bertambahnya persentase co-firing sawdust.
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From several New and Renewable Energy (EBT) programs designed by PT PLN, one of the programs is the application of Co-firing in existing coal-fired steam power plants (PLTU). Co-firing is the addition of biomass as a partial replacement fuel into a coal-fired PLTU boiler. Co-firing is used as one of the green boosters in the program to accelerate the use of renewable energy. In order to support the program, PLTU PT X plans to replace primary fuel from coal to 100% biomass. This study will discuss the effect of biomass cofiring on combustion in pulverized coal type boiler PLTU PT X. Numerical analysis was carried out on Pulverized Coal (PC) Boiler PLTU PT X using eight (8) variations namely 100% coal, cofiring biomass with a percentage of 5%, 10%, 15%, 20%, 25%, and 30% and 100% Biomass. So as to determine the distribution of temperature, speed and areas experiencing turbulence in the boiler, modeling is carried out using Computational Fluid Dynamic (CFD) using ANSYS FLUENT software. The results of this study show that the condition of 100% coal has the highest temperature contour distribution and then decreases as the percentage of sawdust co-firing increases.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	co-firing, biomassa, pulverized coal boiler, CFD, co-firing, biomass, pulverized coal boiler, CFD
Subjects:	T Technology > T Technology (General) > T57.62 Simulation T Technology > TJ Mechanical engineering and machinery T Technology > TJ Mechanical engineering and machinery > TJ263.5 Boilers (general)
Divisions:	Faculty of Vocational > Mechanical Industrial Engineering (D4)
Depositing User:	Hervian Qidam Yultrianto
Date Deposited:	08 Aug 2024 01:14
Last Modified:	08 Aug 2024 01:14
URI:	http://repository.its.ac.id/id/eprint/114914

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