Analisis Termodinamika Dan Tekno-Ekonomi Terhadap Co-Firing Hidrogen Pada Turbin Gas Industrial (Heavy Duty)

Pamungkas, Aria Halim (2026) Analisis Termodinamika Dan Tekno-Ekonomi Terhadap Co-Firing Hidrogen Pada Turbin Gas Industrial (Heavy Duty). Masters thesis, Institut Teknologi Sepuluh Nopember.

Text 6007241018-Master_Thesis.pdf - Accepted Version Restricted to Repository staff only Download (9MB) | Request a copy

Abstract

Peningkatan kebutuhan energi listrik di Indonesia masih didominasi oleh pembangkit berbahan bakar fosil, sementara pemerintah menargetkan pencapaian Net Zero Emission (NZE) pada tahun 2060. Salah satu upaya dekarbonisasi adalah penerapan co-firing hidrogen pada Pembangkit Listrik Tenaga Gas (PLTG). Namun, implementasinya memerlukan evaluasi terhadap karakteristik pembakaran, performa turbin gas, jaringan pipa gas, emisi, dan kelayakan ekonomi. Penelitian ini bertujuan menentukan rasio co-firing hidrogen maksimum yang layak diterapkan pada turbin gas industrial M701F5. Penelitian dilakukan menggunakan Aspen HYSYS V14 dengan memodelkan turbin gas M701F5 berdasarkan data uji performa PLTG Muara Karang Blok #3. Model divalidasi terhadap data operasi aktual dengan deviasi maksimum 4,18%. Simulasi dilakukan pada variasi fraksi molar hidrogen 0–100% dengan mempertahankan daya keluaran turbin dan laju alir udara tetap melalui penyesuaian laju alir bahan bakar. Evaluasi meliputi karakteristik pembakaran, performa termodinamika, karakteristik aliran jaringan pipa, emisi, serta analisis tekno-ekonomi berdasarkan estimasi CAPEX, OPEX, dan biaya pokok produksi listrik. Hasil penelitian menunjukkan bahwa peningkatan fraksi hidrogen menurunkan laju alir massa bahan bakar hingga 60% dan meningkatkan efisiensi hingga 3,5%. Kecepatan aliran gas masih berada di bawah batas erosional velocity menurut API RP 14E dan Mach number tetap pada kondisi subsonik.Emisi CO₂ menurun sedangkan konsentrasi NOₓ meningkat hingga 13,16%, namun masih berada dalam kisaran operasi combustor Dry Low NOx (DLN). Berdasarkan evaluasi teknis dan ekonomi, rasio co-firing hidrogen maksimum yang direkomendasikan adalah 30% dengan efisiensi meningkat hingga 0,36%. Hasil penelitian menunjukkan bahwa implementasi tersebut berpotensi mendukung dekarbonisasi PLTG tanpa memerlukan modifikasi besar pada sistem turbin gas dan jaringan pipa eksisting, akan tetapi pelaksanaan co-firing hidrogen baru mendapatkan biaya pokok produksi yang lebih rendah dibandingkan dengan 100% gas ketika Indonesia Crude Oil Price (ICP) 90 USD/barrel dan harga hidrogen plant gate 1 USD/barrel.
=======================================================================================================================================
The increasing demand for electricity in Indonesia is still predominantly met by fossil fuel-based power plants, while the government has committed to achieving Net Zero Emissions (NZE) by 2060. One promising decarbonization strategy is the implementation of hydrogen co-firing in Gas Turbine Power Plants (GTPPs). However, its implementation requires a comprehensive evaluation of combustion characteristics, turbine performance, pipeline operation, emissions, and economic feasibility. This study aims to determine the maximum feasible hydrogen co-firing ratio that can be applied to an industrial M701F5 gas turbine. The study was conducted using Aspen HYSYS V14 to model the M701F5 gas turbine based on performance test data from Muara Karang Combined Cycle Power Plant (CCPP) Block #3. The developed model was validated against operational data, yielding a maximum deviation of 4.18%. Simulations were performed by varying the hydrogen molar fraction from 0% to 100% while maintaining constant turbine inlet temperature and air flow rate through fuel flow adjustment. The evaluation included combustion characteristics, thermodynamic performance, pipeline flow characteristics, emissions, and techno-economic analysis based on estimated capital expenditure (CAPEX), operating expenditure (OPEX), and the levelized cost of electricity (LCOE). The results indicate that increasing the hydrogen fraction reduces the fuel mass flow rate by up to 60% and improves thermal efficiency by as much as 3.5%. Gas flow velocity remained below the API RP 14E erosional velocity limit, and the Mach number remained within the subsonic regime. Carbon dioxide (CO₂) emissions decreased, whereas NOₓ emissions increased by up to 13.16%, while still remaining within the operational range of Dry Low NOₓ (DLN) combustors. Based on the integrated technical and economic evaluation, the maximum recommended hydrogen co-firing ratio is 30%, resulting in an efficiency improvement of 0.36%. The findings demonstrate that this implementation has the potential to support the decarbonization of gas-fired power plants without requiring modifications to the existing gas turbine and pipeline infrastructure. Nevertheless, hydrogen co-firing is economically competitive with 100% natural gas operation only under the condition that the Indonesian Crude Price (ICP) is USD 90 per barrel and the hydrogen plant-gate price is USD 1 per kilogram.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	co-firing hidrogen, turbin gas industrial, Aspen HYSYS, analisis pipa gas, analisis termodinamika, analisis tekno-ekonomi, co-firing hydrogen, industrial gas turbine, gas pipeline analysis, thermodynamic analysis, techno-economy analysis
Subjects:	T Technology > TJ Mechanical engineering and machinery > TJ265.E23 Thermodynamics. T Technology > TJ Mechanical engineering and machinery > TJ324.5 Fuel systems T Technology > TJ Mechanical engineering and machinery > TJ778 Gas turbines T Technology > TJ Mechanical engineering and machinery > TJ930 Pipelines (General). Underwater pipelines.
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Mechanical Engineering > 21101-(S2) Master Thesis
Depositing User:	Aria Halim Pamungkas
Date Deposited:	30 Jul 2026 17:10
Last Modified:	30 Jul 2026 17:10
URI:	http://repository.its.ac.id/id/eprint/140823

Actions (login required)

View Item