Perancangan Rasio Kontrol Pada Ruang Bakar Genset Berbahan Bakar Biogas

Nastiti, Nadya Sari (2021) Perancangan Rasio Kontrol Pada Ruang Bakar Genset Berbahan Bakar Biogas. Other thesis, Institut Teknologi Sepuluh Nopember.

Text 02311740000115-Undergraduate_Thesis.pdf - Accepted Version Download (3MB)

Abstract

Biogas yang dihasilkan dari peruraian berbagai macam senyawa organik memiliki kadar metana yang berbeda-beda, sehingga mempengaruhi nilai panas dan karakteristik dari biogas tersebut. Biogas dalam tugas akhir ini digunakan sebagai bahan bakar pada genset dengan pembebanan 100-600 watt, kandungan metana 50%, 60%, dan 70%, serta nilai HHV sebesar 22350 kJ/kg, 24220 kJ/kg, dan 26590 kJ/kg. Perancangan rasio kontrol dilakukan untuk menghasilkan pembakaran yang sempurna dengan menjaga temperatur pembakaran sesuai kebutuhan kandungan metana menggunakan Simulink Matlab. Langkah awal pengujian menggunakan AFR stoikiometri sebesar 9,52, 10,09, dan 11,25 menghasilkan temperatur pembakaran sebesar 983,4°C, 975,3°C, dan 969,6°C, kemudian dilakukan uji penambahan excess air untuk kandungan metana 50%, 60%, dan 70% sebesar 73% 50%, dan 32% menghasilkan Nilai AFR sebesar 15,87, 15,08, dan 14,87. Berdasarkan hasil simulasi menggunakan PID controller, diperoleh karakteristik respon daya output sebagai berikut : settling time 26,7 s, 33,4 s, dan 34,45 s, error steady state (ess) 0,2%, 0,1%, dan 0,1%, rise time (tr) 1,76 s, 1,146 s, dan 1,648 s, maximum overshoot (Mp) 6,989%, 8,21%, dan 8,152%. Untuk karakteristik respon temperatur pembakaran sebagai berikut : settling time 38,2 s, 36,85 s, dan 47,15 s, error steady state (ess) 0,05%, 0,2%, dan 0,2%, rise time (tr) 8,228 s, 8,832 s, dan 13,589 s, maximum overshoot (Mp) 0,499%, 0,5%, dan 0,51.
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Biogas that is produced from the decomposition of various organic compounds has different methane levels, thus affecting the heat value and characteristics of the biogas. In this final project, biogas is used as fuel in a generator set with a load of 100-600 watts, methane content of 50%, 60%, and 70%, and HHV values of 22350 kJ / kg, 24220 kJ / kg, and 26590 kJ / kg. The design of the control ratio is carried out to produce perfect combustion by maintaining the combustion temperature according to the needs of the methane content using Matlab Simulink. The initial step of testing using AFR stoichiometry of 9.52, 10.09, and 11.25 resulted in a combustion temperature of 983.4 ° C, 975.3 ° C, and 969.6 ° C, then the excess air addition test was carried out for the content. methane 50%, 60%, and 70% of 73% 50%, and 32% resulted in AFR values of 15.87, 15.08, and 14.87. Based on the simulation results using the PID controller, the output power response characteristics are as follows: settling time 26.7 s, 33.4 s, and 34.45 s, steady state error (ess) 0.2%, 0.1%, and 0.1%, rise time (tr) 1.76 s, 1.146 s, and 1.648 s, maximum overshoot (Mp) 6.989%, 8.21%, and 8.152%. For the characteristics of the combustion temperature response as follows: settling time 38.2 s, 36.85 s, and 47.15 s, steady state error (ess) 0.05%, 0.2%, and 0.2%, rise time (tr) 8,228 s, 8,832 s, and 13,589 s, maximum overshoot (Mp) of 0.499%, 0.5%, and 0.51.

Item Type:	Thesis (Other)
Additional Information:	RSF 621.183 Nas p-1
Uncontrolled Keywords:	Genset biogas, AFR, daya output, mass flow rate, temperatur pembakaran, PID controller, biogas generator, AFR, power, mass flow rate, combustion temperature
Subjects:	T Technology > TJ Mechanical engineering and machinery > TJ263.5 Boilers (general)
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Physics Engineering > 30201-(S1) Undergraduate Thesis
Depositing User:	- Davi Wah
Date Deposited:	19 May 2023 02:57
Last Modified:	19 May 2023 02:57
URI:	http://repository.its.ac.id/id/eprint/97936

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