Analisis Pengaruh Penambahan Hidrogen Pada Bahan Bakar Terhadap Emisi Gas Buang Pada Air-Staged Combustion Furnace Menggunakan Metode Computational Fluid Dynamics

Maingak, Nesa Syofar Zahav (2020) Analisis Pengaruh Penambahan Hidrogen Pada Bahan Bakar Terhadap Emisi Gas Buang Pada Air-Staged Combustion Furnace Menggunakan Metode Computational Fluid Dynamics. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pengembangan furnace industri dengan emsisi gas buang yang rendah menjadi perhatian untuk menurunkan tingkat pencemaran udara secara global. Salah satu metode untuk menurunkan emisi gas buang hasil pembakaran adalah air staged combustion. Selain itu penggunaan hidrogen sebagai bahan bakar dapat menjadi alternatif untuk menghasilkan pembakaran rendah emisi.Pada penelitian ini dilakukan variasi penambahan hidrogen pada bahan bakar natural gas dan penggunaan metode air staged combustion untuk menghasilkan pembakaran dengan emisi gas buang yang rendah. Variasi penambahan hidrogen yang dilakukan yakni 0%, 5%, 10%, 15%, dan 20%. Sedangkan untuk penambahan secondary air pada air staged combustion dilakukan sebesar 0%, 10%, 20%, 30%, dan 40% terhadap volume furnace. Berdasarkan simulasi metode numerik CFD (Computational Fluid Dynamic), diperoleh hasil penurunan emisi gas buang terbaik pada tiga kondisi, yakni dengan penambahan hidrogen sebesar 20%, penambahan secondary air sebesar 20%, dan kombinasi penambahan hidrogen 15% dan secondary air 20%. Ketiga kondisi variasi tersebut dapat menurunkan karbon dioksida, NOx, dan meningkatkan total energy pembakaran, akan tetapi terjadi kenaikan karbon monoksida dengan kadar maksimum 43.4 ppm. ===================================================================================================== The development of low emissions industrial furnaces is a big concern to reduce the level of global air pollution. Air staged combustion is one of the best methods to reduce emission. In addition, the use of hydrogen as a fuel can be an alternative to produce low-emissions combustion.Hydrogen addition to natural gas fuels and the use of air staged combustion method are the main variations in this research to produce combustion with low emissions. Hydrogen addition variations are 0%, 5%, 10%, 15%, and 20%. Whereas the addition of secondary air of air staged combustion variations are 0%, 10%, 20%, 30%, and 40% of the furnace volume.Based on the simulation of Computational Fluid Dynamic method, the best emission reduction results are obtained in three conditions, namely by adding 20% hydrogen, adding 20% secondary air, and a combination of adding 15% hydrogen and 20% secondary air. These three conditions can reduce carbon dioxide, NOx, and increase total combustion energy, but there is an increment of carbon monoxide with a maximum level of 43.4 ppm.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: furnace, air-staged combustion, hidrogen, secondary air, hydrogen.
Subjects: Q Science > QC Physics > QC320 Heat transfer
Q Science > QC Physics > QC 611.97.T46 Temperature effects. Including transition temperature
T Technology > TA Engineering (General). Civil engineering (General) > TA347 Finite Element Method
T Technology > TA Engineering (General). Civil engineering (General) > TA357 Computational fluid dynamics.
Divisions: Faculty of Industrial Technology and Systems Engineering (INDSYS) > Physics Engineering > 30201-(S1) Undergraduate Thesis
Depositing User: Nesa Syofar Zahav Maingak
Date Deposited: 04 Aug 2020 02:05
Last Modified: 04 Aug 2020 02:05
URI: http://repository.its.ac.id/id/eprint/76848

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