Kajian Termodinamika Sistem Hibrida PCFC-GT-ORC dengan External Steam Reformer untuk Berbagai Bahan Bakar

Bekti, Aditiya Fajar (2023) Kajian Termodinamika Sistem Hibrida PCFC-GT-ORC dengan External Steam Reformer untuk Berbagai Bahan Bakar. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Penelitian ini bertujuan untuk menyelidiki sel bahan bakar keramik protonik (PCFC) yang dikombinasikan dengan turbin gas mikro (MGT) dan sistem hybrid Organic Rankine Cycle (ORC) dengan reformer eksternal yang ditenagai oleh berbagai bahan bakar. Ketika suhu saluran masuk turbin dan reaktan ruang bakar menurun, output daya MGT juga menurun. Hasil menunjukkan bahwa peningkatan daya sel bahan bakar lebih dominan daripada penurunan daya MGT; karenanya, efisiensi sistem meningkat seiring dengan pertumbuhan rasio AOGR. Selanjutnya, menginstal AOGR dapat membuat sistem hybrid PCFC-MGT-ORC bekerja dengan daya maksimum di bawah berbagai variasi Uf. Penyelidikan variasi Uf mengungkapkan bahwa parameter ini sangat penting dalam distribusi energi ke PCFC, MGT, dan ORC, di mana keluaran daya sel meningkat tetapi keluaran daya MGT turun ketika Uf meningkat. Hasil juga menunjukkan bahwa sistem hybrid PCFC-MGT-ORC dapat menghasilkan daya maksimum pada Uf rendah dengan laju AOGR tinggi, dan sistem hybrid dapat menghasilkan daya puncak pada Uf tinggi tanpa AOGR.
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This study aims to investigate a protonic ceramic fuel cell (PCFC) combined with a micro gas turbine (MGT) and an Organic Rankine Cycle (ORC) hybrid system with an external reformer powered by various fuels. When turbine inlet temperature and combustor reactant decrease, correspondingly decreases MGT power output. The results indicate that the increase in fuel cell power is dominant than the decrease of MGT power; hence, system efficiency increases as the AOGR ratio grows. Furthermore, installing AOGR can keep a PCFC-MGT-ORC hybrid system working at maximum power under various Uf variations. The investigation of Uf variations reveals that this parameter is critical in energy distribution into PCFC, MGT, and ORC, in which cell power output increases but MGT power output drops as Uf increases. The results also show that a hybrid PCFC-MGT-ORC system can generate maximum power at low Uf with a high AOGR rate, and a hybrid system can produce peak power at high Uf without AOGR.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	External reforming, Proton Conducting Solid Oxide Fuel Cell (PCFC), Micro Gas Turbine, Organic Rankine Cycle, Combine Heat and Power, Pemodelan Sistem Hibrida, Matlab Simulink.
Subjects:	T Technology > TJ Mechanical engineering and machinery > TJ164 Power plants--Design and construction T Technology > TJ Mechanical engineering and machinery > TJ165 Energy storage. T Technology > TJ Mechanical engineering and machinery > TJ265.E23 Thermodynamics. T Technology > TJ Mechanical engineering and machinery > TJ808 Renewable energy sources. Energy harvesting.
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Mechanical Engineering > 21101-(S2) Master Thesis
Depositing User:	Aditiya Fajar Bekti
Date Deposited:	23 Nov 2023 07:58
Last Modified:	23 Nov 2023 07:58
URI:	http://repository.its.ac.id/id/eprint/104085

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