Saputra, Arya Adi (2025) Optimisasi Kinerja dan Efisiensi Cofiring Pembangkit dengan Analisis Exergy, Exergoeconomic, dan Metode MCDM: Studi Kasus PLTU Banten 2 Labuan. Masters thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Peningkatan kebutuhan energi di Indonesia masih didominasi oleh pembangkit listrik berbasis batubara, yang berdampak besar terhadap emisi gas rumah kaca. Untuk mendukung transisi energi berkelanjutan, penerapan teknologi cofiring antara batubara dan biomassa menjadi salah satu solusi strategis yang feasible dan rendah biaya. Penelitian ini bertujuan untuk mengevaluasi performa termodinamika, ekonomi, dan lingkungan dari skenario cofiring biomassa pada PLTU Banten 2 Labuan dengan kapasitas 300 MW. Metode yang digunakan adalah simulasi sistem termodinamika menggunakan perangkat lunak Cycle-Tempo untuk menganalisis variasi rasio biomassa dari 0% hingga 7%. Evaluasi mencakup analisis exergy dan efisiensi termal, perhitungan heat rate, biaya bahan bakar, unit cost of exergy, serta estimasi emisi karbon dioksida (CO₂). Selain itu, digunakan metode pengambilan keputusan multikriteria AHP dan TOPSIS serta analisis sensitivitas untuk menentukan skenario paling optimal berdasarkan parameter-parameter tersebut. Berdasarkan evaluasi AHP – TOPSIS dan analisis sensitivitas terhadap perubahan harga biomassa menunjukkan bahwa alternatif A4 (97% Batubara dan 3% Biomassa) memiliki tingkat stabilitas tertinggi dalam mempertahankan nilai P Score, baik saat harga biomassa mengalami penurunan maupun kenaikan hingga ±8%. Dengan mempertimbangkan kinerja teknis, dampak lingkungan, dan ketahanan terhadap fluktuasi ekonomi, alternatif A4 (97% Batubara dan 3% Biomassa) menjadi opsi yang seimbang.
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The surge in energy demand in Indonesia is driven by coal-fired power plants, which substantially contribute to greenhouse gas emissions. The use of co-firing technology utilizing coal and biomass has emerged as a viable and cost-effective strategy to facilitate the transition to sustainable energy. This study seeks to assess the thermodynamic, economic, and environmental efficacy of the biomass cofiring scenario at the Labuan Power Plant. The employed method is thermodynamic system simulation utilizing Cycle-Tempo software to examine fluctuations in biomass ratios ranging from 0% to 7%. The assessment encompasses exergy and thermal efficiency analysis, heat rate computation, fuel expenditure, unit cost of exergy, and carbon dioxide (CO₂) emission estimation. Furthermore, the AHP and TOPSIS multi-criteria decision-making methodologies, along with sensitivity analysis, were employed to ascertain the most ideal scenario based on these parameters. The assessment of AHP – TOPSIS and sensitivity analysis about fluctuations in biomass pricing reveals that alternative A4 (97% Coal and 3% Biomass) exhibits the greatest stability in preserving the P Score value, regardless of whether the biomass price varies by up to ±8%. Evaluating technical performance, environmental consequences, and resilience to economic volatility, alternative A4 (97% Coal and 3% Biomass) presents itself as a judicious choice.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | PLTU, Biomassa, Cofiring, Exergy, Efisiensi Termal, Emisi CO₂, AHP, TOPSIS, Cycle-Tempo, Biomass Cofiring, Coal-Fired Power Plant, Exergy, Thermal Efficiency, CO₂ Emissions, MCDM |
| Subjects: | T Technology > TD Environmental technology. Sanitary engineering > TD195.B56 Biomass energy T Technology > TD Environmental technology. Sanitary engineering > TD899.S68 Steam power plants |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Physics Engineering > 30101-(S2) Master Thesis |
| Depositing User: | Arya Adi Saputra |
| Date Deposited: | 08 Sep 2025 08:22 |
| Last Modified: | 08 Sep 2025 08:23 |
| URI: | http://repository.its.ac.id/id/eprint/127533 |
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