Evaluasi Efektivitas Proses Co-Firing Dalam Mengurangi Potensi Dampak Lingkungan Di PLTU PC 350 MW

Rizki, Satria (2026) Evaluasi Efektivitas Proses Co-Firing Dalam Mengurangi Potensi Dampak Lingkungan Di PLTU PC 350 MW. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Co-firing biomassa pada Pembangkit Listrik Tenaga Uap (PLTU) menjadi salah satu langkah strategis jangka pendek untuk mendukung transisi energi karena mampu memanfaatkan energi terbarukan tanpa mengubah secara signifikan infrastruktur pembangkit yang sudah beroperasi. Akan tetapi, penambahan porsi biomassa dalam campuran bahan bakar berpotensi memengaruhi efisiensi termal pembangkit, sehingga kajian yang mempertimbangkan aspek lingkungan sekaligus aspek operasional secara bersamaan menjadi penting untuk dilakukan. Penelitian ini menilai efektivitas biomassa jenis sawdust dalam skema co-firing pada PLTU Pulverized Coal berkapasitas 350 MW dan menentukan komposisi campuran berdasarkan pareto optimal. Kinerja pembangkit disimulasikan untuk menghitung Net Plant Heat Rate (NPHR) pada enam variasi co-firing, mulai dari 0% hingga 15% sawdust, sementara dampak lingkungannya dianalisis melalui Life Cycle Assessment (LCA) dengan pendekatan gate-to-gate menggunakan metode ReCiPe 2016. Hasil penelitian menunjukkan bahwa peningkatan proporsi sawdust hingga 15% menurunkan total dampak lingkungan sebesar 5,37% (dari 361,45 menjadi 342,05 mPt), tetapi juga menaikkan Net Plant Heat Rate (NPHR) sebesar 1,12% (dari 2.630,8 menjadi 2.660,3 kcal/kWh). Skenario co-firing dengan proporsi 8% sawdust terpilih sebagai hasil optimasi karena memberikan keseimbangan paling baik antara penurunan dampak lingkungan dan efisiensi kinerja pembangkit.
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Biomass co-firing in pulverized coal-fired power plants (PCPPs) represents a strategic short-term measure to support the energy transition, as it enables the utilization of renewable energy without requiring significant modifications to existing power plant infrastructure. However, increasing the biomass share in the fuel mix can affect thermal efficiency; therefore, it is crucial to evaluate both environmental and operational performance simultaneously. This study evaluates the effectiveness of sawdust co-firing in a 350 MW pulverized coal-fired power plant and determines the optimal fuel blend composition based on Pareto optimality. Plant performance was simulated to calculate the Net Plant Heat Rate (NPHR) across six co-firing scenarios ranging from 0% to 15% sawdust. Environmental impacts were assessed through a gate-to-gate Life Cycle Assessment (LCA) using the ReCiPe 2016 method. The results indicate that increasing the sawdust proportion to 15% reduced the total environmental impact by 5.37% (from 361.45 to 342.05 mPt) but also increased the NPHR by 1.12% (from 2,630.8 to 2,660.3 kcal/kWh). Among the evaluated scenarios, the 8% sawdust co-firing scenario was identified as the optimal configuration, as it offered the best balance between reducing environmental impacts and maintaining plant efficiency.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	Co-firing, sawdust, NPHR
Subjects:	T Technology > TD Environmental technology. Sanitary engineering > TD194.6 Environmental impact analysis T Technology > TD Environmental technology. Sanitary engineering > TD195.B56 Biomass energy
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Industrial Engineering > 26101-(S2) Master Thesis
Depositing User:	Satria Rizki
Date Deposited:	27 Jul 2026 08:29
Last Modified:	27 Jul 2026 08:29
URI:	http://repository.its.ac.id/id/eprint/138101

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